Merge branch 'hexagon' into 'main'

Hexagon; v1.0.0 See merge request v3/service/user!40
2023-07-24 13:51:41 +00:00 · 2023-07-24 13:51:41 +00:00 · 8e07b3b02a
parent ee9474828e 048eba9423
commit 8e07b3b02a
106 changed files with 3307 additions and 4228 deletions
--- a/.env.dist
+++ b/.env.dist
@ -7,9 +7,9 @@ HEALTH_SERVICE_PORT=6001
 # PRISMA
 DATABASE_URL="postgresql://mobicoop:mobicoop@v3-db:5432/mobicoop?schema=user"

-# RABBIT MQ
-RMQ_URI=amqp://v3-broker:5672
-RMQ_EXCHANGE=mobicoop
+# MESSAGE BROKER
+MESSAGE_BROKER_URI=amqp://v3-broker:5672
+MESSAGE_BROKER_EXCHANGE=mobicoop

 # REDIS
 REDIS_HOST=v3-redis
--- a/README.md
+++ b/README.md
@ -48,24 +48,15 @@ npm run migrate

 The app exposes the following [gRPC](https://grpc.io/) services :

-   **FindByUuid** : find a user by its uuid
+-   **FindById** : find a user by its id

    ```json
    {
-        "uuid": "80126a61-d128-4f96-afdb-92e33c75a3e1"
+        "id": "80126a61-d128-4f96-afdb-92e33c75a3e1"
    }
    ```

-   **FindAll** : find all users; you can use pagination with `page` (default:_1_) and `perPage` (default:_10_)
-
-    ```json
-    {
-        "page": 1,
-        "perPage": 10
-    }
-    ```
-
-   **Create** : create a user (note that uuid is optional, a uuid will be automatically attributed if it is not provided)
+-   **Create** : create a user

    ```json
    {
@ -82,15 +73,15 @@ The app exposes the following [gRPC](https://grpc.io/) services :
    {
        "firstName": "Jezabel-Katarina",
        "email": "jezabel-katarina.doe@email.com",
-        "uuid": "30f49838-3f24-42bb-a489-8ffb480173ae"
+        "id": "30f49838-3f24-42bb-a489-8ffb480173ae"
    }
    ```

-   **Delete** : delete a user by its uuid
+-   **Delete** : delete a user by its id

    ```json
    {
-        "uuid": "80126a61-d128-4f96-afdb-92e33c75a3e1"
+        "id": "80126a61-d128-4f96-afdb-92e33c75a3e1"
    }
    ```

@ -102,7 +93,7 @@ As mentionned earlier, RabbitMQ messages are sent after these events :

 -   **Update** (message : the updated user informations)

-   **Delete** (message : the uuid of the deleted user)
+-   **Delete** (message : the id of the deleted user)

 Various messages are also sent for logging purpose.

--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "@mobicoop/user",
-  "version": "0.0.1",
+  "version": "1.0.0",
  "description": "Mobicoop V3 User Service",
  "author": "sbriat",
  "private": true,
@ -17,33 +17,32 @@
    "lint:check": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix-dry-run --ignore-path .gitignore",
    "pretty:check": "./node_modules/.bin/prettier --check .",
    "pretty": "./node_modules/.bin/prettier --write .",
-    "test": "npm run migrate:test && dotenv -e .env.test jest",
+    "test": "npm run test:unit && npm run test:integration",
    "test:unit": "jest --testPathPattern 'tests/unit/' --verbose",
    "test:unit:ci": "jest --testPathPattern 'tests/unit/' --coverage",
-    "test:integration": "npm run migrate:test && dotenv -e .env.test -- jest --testPathPattern 'tests/integration/' --verbose",
-    "test:integration:ci": "npm run migrate:test:ci && dotenv -e ci/.env.ci -- jest --testPathPattern 'tests/integration/'",
+    "test:integration": "npm run migrate:test && dotenv -e .env.test -- jest --testPathPattern 'tests/integration/' --verbose --runInBand",
+    "test:integration:ci": "npm run migrate:test:ci && dotenv -e ci/.env.ci -- jest --testPathPattern 'tests/integration/' --runInBand",
    "test:cov": "jest --testPathPattern 'tests/unit/' --coverage",
    "test:e2e": "jest --config ./test/jest-e2e.json",
-    "generate": "docker exec v3-user-api sh -c 'npx prisma generate'",
-    "migrate": "docker exec v3-user-api sh -c 'npx prisma migrate dev'",
+    "migrate": "docker exec v3-auth-api sh -c 'npx prisma migrate dev'",
    "migrate:test": "dotenv -e .env.test -- npx prisma migrate deploy",
    "migrate:test:ci": "dotenv -e ci/.env.ci -- npx prisma migrate deploy",
    "migrate:deploy": "npx prisma migrate deploy"
  },
  "dependencies": {
-    "@automapper/classes": "^8.7.7",
-    "@automapper/core": "^8.7.7",
-    "@automapper/nestjs": "^8.7.7",
    "@grpc/grpc-js": "^1.8.0",
    "@grpc/proto-loader": "^0.7.4",
    "@liaoliaots/nestjs-redis": "^9.0.5",
-    "@mobicoop/configuration-module": "^1.1.0",
-    "@mobicoop/message-broker-module": "^1.0.5",
+    "@mobicoop/configuration-module": "^1.2.0",
+    "@mobicoop/ddd-library": "^1.0.0",
+    "@mobicoop/health-module": "^2.0.0",
+    "@mobicoop/message-broker-module": "^1.2.0",
    "@nestjs/cache-manager": "^1.0.0",
    "@nestjs/common": "^9.0.0",
    "@nestjs/config": "^2.2.0",
    "@nestjs/core": "^9.0.0",
    "@nestjs/cqrs": "^9.0.1",
+    "@nestjs/event-emitter": "^2.0.0",
    "@nestjs/microservices": "^9.2.1",
    "@nestjs/platform-express": "^9.0.0",
    "@nestjs/terminus": "^9.2.2",
@ -54,6 +53,7 @@
    "cache-manager": "^5.2.1",
    "cache-manager-ioredis-yet": "^1.1.0",
    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.0",
    "dotenv-cli": "^6.0.0",
    "ioredis": "^5.3.0"
  },
@ -63,6 +63,7 @@
    "@nestjs/testing": "^9.0.0",
    "@types/jest": "^29.2.5",
    "@types/node": "^18.11.18",
+    "@types/uuid": "^9.0.2",
    "eslint": "^8.0.1",
    "eslint-config-prettier": "^8.3.0",
    "eslint-plugin-prettier": "^4.0.0",
@ -84,12 +85,13 @@
      "ts"
    ],
    "modulePathIgnorePatterns": [
-      ".controller.ts",
      ".module.ts",
-      ".request.ts",
-      ".presenter.ts",
-      ".profile.ts",
-      ".exception.ts",
+      ".dto.ts",
+      ".constants.ts",
+      ".di-tokens.ts",
+      ".response.ts",
+      ".port.ts",
+      "prisma.service.ts",
      "main.ts"
    ],
    "rootDir": "src",
@ -101,15 +103,20 @@
      "**/*.(t|j)s"
    ],
    "coveragePathIgnorePatterns": [
-      ".controller.ts",
      ".module.ts",
-      ".request.ts",
-      ".presenter.ts",
-      ".profile.ts",
-      ".exception.ts",
+      ".dto.ts",
+      ".constants.ts",
+      ".di-tokens.ts",
+      ".response.ts",
+      ".port.ts",
+      "prisma.service.ts",
      "main.ts"
    ],
    "coverageDirectory": "../coverage",
+    "moduleNameMapper": {
+      "^@modules(.*)": "<rootDir>/modules/$1",
+      "^@src(.*)": "<rootDir>$1"
+    },
    "testEnvironment": "node"
  }
 }
--- a/src/app.constants.ts
+++ b/src/app.constants.ts
@ -1,2 +0,0 @@
-export const MESSAGE_BROKER_PUBLISHER = Symbol();
-export const MESSAGE_PUBLISHER = Symbol();
--- a/src/app.module.ts
+++ b/src/app.module.ts
@ -1,70 +1,67 @@
-import { classes } from '@automapper/classes';
-import { AutomapperModule } from '@automapper/nestjs';
 import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
-import { HealthModule } from './modules/health/health.module';
 import { UserModule } from './modules/user/user.module';
 import {
  ConfigurationModule,
  ConfigurationModuleOptions,
 } from '@mobicoop/configuration-module';
 import {
-  MessageBrokerModule,
-  MessageBrokerModuleOptions,
-} from '@mobicoop/message-broker-module';
+  HealthModule,
+  HealthModuleOptions,
+  HealthRepositoryPort,
+} from '@mobicoop/health-module';
+import { MessagerModule } from './modules/messager/messager.module';
+import { USER_REPOSITORY } from './modules/user/user.di-tokens';
+import { MESSAGE_PUBLISHER } from './modules/messager/messager.di-tokens';
+import { MessagePublisherPort } from '@mobicoop/ddd-library';
+import { EventEmitterModule } from '@nestjs/event-emitter';

@Module({
  imports: [
    ConfigModule.forRoot({ isGlobal: true }),
-    AutomapperModule.forRoot({ strategyInitializer: classes() }),
-    UserModule,
-    MessageBrokerModule.forRootAsync(
-      {
-        imports: [ConfigModule],
-        inject: [ConfigService],
-        useFactory: async (
-          configService: ConfigService,
-        ): Promise<MessageBrokerModuleOptions> => ({
+    EventEmitterModule.forRoot(),
+    ConfigurationModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: async (
+        configService: ConfigService,
+      ): Promise<ConfigurationModuleOptions> => ({
+        domain: configService.get<string>('SERVICE_CONFIGURATION_DOMAIN'),
+        messageBroker: {
          uri: configService.get<string>('MESSAGE_BROKER_URI'),
          exchange: configService.get<string>('MESSAGE_BROKER_EXCHANGE'),
-          handlers: {},
-        }),
-      },
-      false,
-    ),
-    ConfigurationModule.forRootAsync(
-      {
-        imports: [ConfigModule],
-        inject: [ConfigService],
-        useFactory: async (
-          configService: ConfigService,
-        ): Promise<ConfigurationModuleOptions> => ({
-          domain: configService.get<string>('SERVICE_CONFIGURATION_DOMAIN'),
-          messageBroker: {
-            uri: configService.get<string>('MESSAGE_BROKER_URI'),
-            exchange: configService.get<string>('MESSAGE_BROKER_EXCHANGE'),
+        },
+        redis: {
+          host: configService.get<string>('REDIS_HOST'),
+          password: configService.get<string>('REDIS_PASSWORD'),
+          port: configService.get<number>('REDIS_PORT'),
+        },
+        setConfigurationBrokerQueue: 'user-configuration-create-update',
+        deleteConfigurationQueue: 'user-configuration-delete',
+        propagateConfigurationQueue: 'user-configuration-propagate',
+      }),
+    }),
+    HealthModule.forRootAsync({
+      imports: [UserModule, MessagerModule],
+      inject: [USER_REPOSITORY, MESSAGE_PUBLISHER],
+      useFactory: async (
+        userRepository: HealthRepositoryPort,
+        messagePublisher: MessagePublisherPort,
+      ): Promise<HealthModuleOptions> => ({
+        serviceName: 'user',
+        criticalLoggingKey: 'logging.user.health.crit',
+        checkRepositories: [
+          {
+            name: 'UserRepository',
+            repository: userRepository,
          },
-          redis: {
-            host: configService.get<string>('REDIS_HOST'),
-            password: configService.get<string>('REDIS_PASSWORD'),
-            port: configService.get<number>('REDIS_PORT'),
-          },
-          setConfigurationBrokerRoutingKeys: [
-            'configuration.create',
-            'configuration.update',
-          ],
-          deleteConfigurationRoutingKey: 'configuration.delete',
-          propagateConfigurationRoutingKey: 'configuration.propagate',
-          setConfigurationBrokerQueue: 'user-configuration-create-update',
-          deleteConfigurationQueue: 'user-configuration-delete',
-          propagateConfigurationQueue: 'user-configuration-propagate',
-        }),
-      },
-      true,
-    ),
-    HealthModule,
+        ],
+        messagePublisher,
+      }),
+    }),
+    UserModule,
+    MessagerModule,
  ],
-  controllers: [],
-  providers: [],
+  exports: [UserModule, MessagerModule],
 })
 export class AppModule {}
--- a/src/modules/health/adapters/primaries/health.proto
+++ b/src/modules/health/adapters/primaries/health.proto
@ -2,7 +2,6 @@ syntax = "proto3";

 package health;

-
 service Health {
  rpc Check(HealthCheckRequest) returns (HealthCheckResponse);
 }
@ -18,4 +17,5 @@ message HealthCheckResponse {
    NOT_SERVING = 2;
  }
  ServingStatus status = 1;
+  string message = 2;
 }
--- a/src/interfaces/message-publisher.ts
+++ b/src/interfaces/message-publisher.ts
@ -1,3 +0,0 @@
-export interface IPublishMessage {
-  publish(routingKey: string, message: string): void;
-}
--- a/src/main.ts
+++ b/src/main.ts
@ -13,8 +13,8 @@ async function bootstrap() {
    options: {
      package: ['user', 'health'],
      protoPath: [
-        join(__dirname, 'modules/user/adapters/primaries/user.proto'),
-        join(__dirname, 'modules/health/adapters/primaries/health.proto'),
+        join(__dirname, 'modules/user/interface/grpc-controllers/user.proto'),
+        join(__dirname, 'health.proto'),
      ],
      url: process.env.SERVICE_URL + ':' + process.env.SERVICE_PORT,
      loader: { keepCase: true },
--- a/src/modules/database/adapters/secondaries/prisma-repository.abstract.ts
+++ b/src/modules/database/adapters/secondaries/prisma-repository.abstract.ts
@ -1,259 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { Prisma } from '@prisma/client';
-import { DatabaseException } from '../../exceptions/database.exception';
-import { ICollection } from '../../interfaces/collection.interface';
-import { IRepository } from '../../interfaces/repository.interface';
-import { PrismaService } from './prisma-service';
-
-/**
- * Child classes MUST redefined _model property with appropriate model name
- */
-@Injectable()
-export abstract class PrismaRepository<T> implements IRepository<T> {
-  protected model: string;
-
-  constructor(protected readonly prisma: PrismaService) {}
-
-  findAll = async (
-    page = 1,
-    perPage = 10,
-    where?: any,
-    include?: any,
-  ): Promise<ICollection<T>> => {
-    const [data, total] = await this.prisma.$transaction([
-      this.prisma[this.model].findMany({
-        where,
-        include,
-        skip: (page - 1) * perPage,
-        take: perPage,
-      }),
-      this.prisma[this.model].count({
-        where,
-      }),
-    ]);
-    return Promise.resolve({
-      data,
-      total,
-    });
-  };
-
-  findOneByUuid = async (uuid: string): Promise<T> => {
-    try {
-      const entity = await this.prisma[this.model].findUnique({
-        where: { uuid },
-      });
-
-      return entity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  findOne = async (where: any, include?: any): Promise<T> => {
-    try {
-      const entity = await this.prisma[this.model].findFirst({
-        where: where,
-        include: include,
-      });
-
-      return entity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  // TODO : using any is not good, but needed for nested entities
-  // TODO : Refactor for good clean architecture ?
-  create = async (entity: Partial<T> | any, include?: any): Promise<T> => {
-    try {
-      const res = await this.prisma[this.model].create({
-        data: entity,
-        include: include,
-      });
-
-      return res;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  update = async (uuid: string, entity: Partial<T>): Promise<T> => {
-    try {
-      const updatedEntity = await this.prisma[this.model].update({
-        where: { uuid },
-        data: entity,
-      });
-      return updatedEntity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  updateWhere = async (
-    where: any,
-    entity: Partial<T> | any,
-    include?: any,
-  ): Promise<T> => {
-    try {
-      const updatedEntity = await this.prisma[this.model].update({
-        where: where,
-        data: entity,
-        include: include,
-      });
-
-      return updatedEntity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  delete = async (uuid: string): Promise<T> => {
-    try {
-      const entity = await this.prisma[this.model].delete({
-        where: { uuid },
-      });
-
-      return entity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  deleteMany = async (where: any): Promise<void> => {
-    try {
-      const entity = await this.prisma[this.model].deleteMany({
-        where: where,
-      });
-
-      return entity;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  findAllByQuery = async (
-    include: string[],
-    where: string[],
-  ): Promise<ICollection<T>> => {
-    const query = `SELECT ${include.join(',')} FROM ${
-      this.model
-    } WHERE ${where.join(' AND ')}`;
-    const data: T[] = await this.prisma.$queryRawUnsafe(query);
-    return Promise.resolve({
-      data,
-      total: data.length,
-    });
-  };
-
-  createWithFields = async (fields: object): Promise<number> => {
-    try {
-      const command = `INSERT INTO ${this.model} ("${Object.keys(fields).join(
-        '","',
-      )}") VALUES (${Object.values(fields).join(',')})`;
-      return await this.prisma.$executeRawUnsafe(command);
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  updateWithFields = async (uuid: string, entity: object): Promise<number> => {
-    entity['"updatedAt"'] = `to_timestamp(${Date.now()} / 1000.0)`;
-    const values = Object.keys(entity).map((key) => `${key} = ${entity[key]}`);
-    try {
-      const command = `UPDATE ${this.model} SET ${values.join(
-        ', ',
-      )} WHERE uuid = '${uuid}'`;
-      return await this.prisma.$executeRawUnsafe(command);
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-
-  healthCheck = async (): Promise<boolean> => {
-    try {
-      await this.prisma.$queryRaw`SELECT 1`;
-      return true;
-    } catch (e) {
-      if (e instanceof Prisma.PrismaClientKnownRequestError) {
-        throw new DatabaseException(
-          Prisma.PrismaClientKnownRequestError.name,
-          e.code,
-          e.message,
-        );
-      } else {
-        throw new DatabaseException();
-      }
-    }
-  };
-}
--- a/src/modules/database/database.module.ts
+++ b/src/modules/database/database.module.ts
@ -1,9 +0,0 @@
-import { Module } from '@nestjs/common';
-import { PrismaService } from './adapters/secondaries/prisma-service';
-import { UserRepository } from './domain/user-repository';
-
-@Module({
-  providers: [PrismaService, UserRepository],
-  exports: [PrismaService, UserRepository],
-})
-export class DatabaseModule {}
--- a/src/modules/database/domain/user-repository.ts
+++ b/src/modules/database/domain/user-repository.ts
@ -1,3 +0,0 @@
-import { PrismaRepository } from '../adapters/secondaries/prisma-repository.abstract';
-
-export class UserRepository<T> extends PrismaRepository<T> {}
--- a/src/modules/database/exceptions/database.exception.ts
+++ b/src/modules/database/exceptions/database.exception.ts
@ -1,24 +0,0 @@
-export class DatabaseException implements Error {
-  name: string;
-  message: string;
-
-  constructor(
-    private _type: string = 'unknown',
-    private _code: string = '',
-    message?: string,
-  ) {
-    this.name = 'DatabaseException';
-    this.message = message ?? 'An error occured with the database.';
-    if (this.message.includes('Unique constraint failed')) {
-      this.message = 'Already exists.';
-    }
-  }
-
-  get type(): string {
-    return this._type;
-  }
-
-  get code(): string {
-    return this._code;
-  }
-}
--- a/src/modules/database/interfaces/collection.interface.ts
+++ b/src/modules/database/interfaces/collection.interface.ts
@ -1,4 +0,0 @@
-export interface ICollection<T> {
-  data: T[];
-  total: number;
-}
--- a/src/modules/database/interfaces/repository.interface.ts
+++ b/src/modules/database/interfaces/repository.interface.ts
@ -1,18 +0,0 @@
-import { ICollection } from './collection.interface';
-
-export interface IRepository<T> {
-  findAll(
-    page: number,
-    perPage: number,
-    params?: any,
-    include?: any,
-  ): Promise<ICollection<T>>;
-  findOne(where: any, include?: any): Promise<T>;
-  findOneByUuid(uuid: string, include?: any): Promise<T>;
-  create(entity: Partial<T> | any, include?: any): Promise<T>;
-  update(uuid: string, entity: Partial<T>, include?: any): Promise<T>;
-  updateWhere(where: any, entity: Partial<T> | any, include?: any): Promise<T>;
-  delete(uuid: string): Promise<T>;
-  deleteMany(where: any): Promise<void>;
-  healthCheck(): Promise<boolean>;
-}
--- a/src/modules/database/tests/unit/prisma-repository.spec.ts
+++ b/src/modules/database/tests/unit/prisma-repository.spec.ts
@ -1,571 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { Test, TestingModule } from '@nestjs/testing';
-import { PrismaService } from '../../adapters/secondaries/prisma-service';
-import { PrismaRepository } from '../../adapters/secondaries/prisma-repository.abstract';
-import { DatabaseException } from '../../exceptions/database.exception';
-import { Prisma } from '@prisma/client';
-
-class FakeEntity {
-  uuid?: string;
-  name: string;
-}
-
-let entityId = 2;
-const entityUuid = 'uuid-';
-const entityName = 'name-';
-
-const createRandomEntity = (): FakeEntity => {
-  const entity: FakeEntity = {
-    uuid: `${entityUuid}${entityId}`,
-    name: `${entityName}${entityId}`,
-  };
-
-  entityId++;
-
-  return entity;
-};
-
-const fakeEntityToCreate: FakeEntity = {
-  name: 'test',
-};
-
-const fakeEntityCreated: FakeEntity = {
-  ...fakeEntityToCreate,
-  uuid: 'some-uuid',
-};
-
-const fakeEntities: FakeEntity[] = [];
-Array.from({ length: 10 }).forEach(() => {
-  fakeEntities.push(createRandomEntity());
-});
-
-@Injectable()
-class FakePrismaRepository extends PrismaRepository<FakeEntity> {
-  protected model = 'fake';
-}
-
-class FakePrismaService extends PrismaService {
-  fake: any;
-}
-
-const mockPrismaService = {
-  $transaction: jest.fn().mockImplementation(async (data: any) => {
-    const entities = await data[0];
-    if (entities.length == 1) {
-      return Promise.resolve([[fakeEntityCreated], 1]);
-    }
-
-    return Promise.resolve([fakeEntities, fakeEntities.length]);
-  }),
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  $queryRawUnsafe: jest.fn().mockImplementation((query?: string) => {
-    return Promise.resolve(fakeEntities);
-  }),
-  $executeRawUnsafe: jest
-    .fn()
-    .mockResolvedValueOnce(fakeEntityCreated)
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    .mockImplementationOnce((fields: object) => {
-      throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-        code: 'code',
-        clientVersion: 'version',
-      });
-    })
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    .mockImplementationOnce((fields: object) => {
-      throw new Error('an unknown error');
-    })
-    .mockResolvedValueOnce(fakeEntityCreated)
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    .mockImplementationOnce((fields: object) => {
-      throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-        code: 'code',
-        clientVersion: 'version',
-      });
-    })
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    .mockImplementationOnce((fields: object) => {
-      throw new Error('an unknown error');
-    }),
-  $queryRaw: jest
-    .fn()
-    .mockImplementationOnce(() => {
-      throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-        code: 'code',
-        clientVersion: 'version',
-      });
-    })
-    .mockImplementationOnce(() => {
-      return true;
-    })
-    .mockImplementation(() => {
-      throw new Prisma.PrismaClientKnownRequestError('Database unavailable', {
-        code: 'code',
-        clientVersion: 'version',
-      });
-    }),
-  fake: {
-    create: jest
-      .fn()
-      .mockResolvedValueOnce(fakeEntityCreated)
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Error('an unknown error');
-      }),
-
-    findMany: jest.fn().mockImplementation((params?: any) => {
-      if (params?.where?.limit == 1) {
-        return Promise.resolve([fakeEntityCreated]);
-      }
-
-      return Promise.resolve(fakeEntities);
-    }),
-    count: jest.fn().mockResolvedValue(fakeEntities.length),
-
-    findUnique: jest.fn().mockImplementation(async (params?: any) => {
-      let entity;
-
-      if (params?.where?.uuid) {
-        entity = fakeEntities.find(
-          (entity) => entity.uuid === params?.where?.uuid,
-        );
-      }
-
-      if (!entity && params?.where?.uuid == 'unknown') {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      } else if (!entity) {
-        throw new Error('no entity');
-      }
-
-      return entity;
-    }),
-
-    findFirst: jest
-      .fn()
-      .mockImplementationOnce((params?: any) => {
-        if (params?.where?.name) {
-          return Promise.resolve(
-            fakeEntities.find((entity) => entity.name === params?.where?.name),
-          );
-        }
-      })
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Error('an unknown error');
-      }),
-
-    update: jest
-      .fn()
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      .mockImplementationOnce((params: any) => {
-        const entity = fakeEntities.find(
-          (entity) => entity.name === params.where.name,
-        );
-        Object.entries(params.data).map(([key, value]) => {
-          entity[key] = value;
-        });
-
-        return Promise.resolve(entity);
-      })
-      .mockImplementation((params: any) => {
-        const entity = fakeEntities.find(
-          (entity) => entity.uuid === params.where.uuid,
-        );
-        Object.entries(params.data).map(([key, value]) => {
-          entity[key] = value;
-        });
-
-        return Promise.resolve(entity);
-      }),
-
-    delete: jest
-      .fn()
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      .mockImplementation((params: any) => {
-        let found = false;
-
-        fakeEntities.forEach((entity, index) => {
-          if (entity.uuid === params?.where?.uuid) {
-            found = true;
-            fakeEntities.splice(index, 1);
-          }
-        });
-
-        if (!found) {
-          throw new Error();
-        }
-      }),
-
-    deleteMany: jest
-      .fn()
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      .mockImplementationOnce((params?: any) => {
-        throw new Prisma.PrismaClientKnownRequestError('unknown request', {
-          code: 'code',
-          clientVersion: 'version',
-        });
-      })
-      .mockImplementation((params: any) => {
-        let found = false;
-
-        fakeEntities.forEach((entity, index) => {
-          if (entity.uuid === params?.where?.uuid) {
-            found = true;
-            fakeEntities.splice(index, 1);
-          }
-        });
-
-        if (!found) {
-          throw new Error();
-        }
-      }),
-  },
-};
-
-describe('PrismaRepository', () => {
-  let fakeRepository: FakePrismaRepository;
-  let prisma: FakePrismaService;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        FakePrismaRepository,
-        {
-          provide: PrismaService,
-          useValue: mockPrismaService,
-        },
-      ],
-    }).compile();
-
-    fakeRepository = module.get<FakePrismaRepository>(FakePrismaRepository);
-    prisma = module.get<PrismaService>(PrismaService) as FakePrismaService;
-  });
-
-  it('should be defined', () => {
-    expect(fakeRepository).toBeDefined();
-    expect(prisma).toBeDefined();
-  });
-
-  describe('findAll', () => {
-    it('should return an array of entities', async () => {
-      jest.spyOn(prisma.fake, 'findMany');
-      jest.spyOn(prisma.fake, 'count');
-      jest.spyOn(prisma, '$transaction');
-
-      const entities = await fakeRepository.findAll();
-      expect(entities).toStrictEqual({
-        data: fakeEntities,
-        total: fakeEntities.length,
-      });
-    });
-
-    it('should return an array containing only one entity', async () => {
-      const entities = await fakeRepository.findAll(1, 10, { limit: 1 });
-
-      expect(prisma.fake.findMany).toHaveBeenCalledWith({
-        skip: 0,
-        take: 10,
-        where: { limit: 1 },
-      });
-      expect(entities).toEqual({
-        data: [fakeEntityCreated],
-        total: 1,
-      });
-    });
-  });
-
-  describe('create', () => {
-    it('should create an entity', async () => {
-      jest.spyOn(prisma.fake, 'create');
-
-      const newEntity = await fakeRepository.create(fakeEntityToCreate);
-      expect(newEntity).toBe(fakeEntityCreated);
-      expect(prisma.fake.create).toHaveBeenCalledTimes(1);
-    });
-
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.create(fakeEntityToCreate),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should throw a DatabaseException if uuid is not found', async () => {
-      await expect(
-        fakeRepository.create(fakeEntityToCreate),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('findOneByUuid', () => {
-    it('should find an entity by uuid', async () => {
-      const entity = await fakeRepository.findOneByUuid(fakeEntities[0].uuid);
-      expect(entity).toBe(fakeEntities[0]);
-    });
-
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.findOneByUuid('unknown'),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should throw a DatabaseException if uuid is not found', async () => {
-      await expect(
-        fakeRepository.findOneByUuid('wrong-uuid'),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('findOne', () => {
-    it('should find one entity', async () => {
-      const entity = await fakeRepository.findOne({
-        name: fakeEntities[0].name,
-      });
-
-      expect(entity.name).toBe(fakeEntities[0].name);
-    });
-
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.findOne({
-          name: fakeEntities[0].name,
-        }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should throw a DatabaseException for unknown error', async () => {
-      await expect(
-        fakeRepository.findOne({
-          name: fakeEntities[0].name,
-        }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('update', () => {
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.update('fake-uuid', { name: 'error' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-      await expect(
-        fakeRepository.updateWhere({ name: 'error' }, { name: 'new error' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should update an entity with name', async () => {
-      const newName = 'new-random-name';
-
-      await fakeRepository.updateWhere(
-        { name: fakeEntities[0].name },
-        {
-          name: newName,
-        },
-      );
-      expect(fakeEntities[0].name).toBe(newName);
-    });
-
-    it('should update an entity with uuid', async () => {
-      const newName = 'random-name';
-
-      await fakeRepository.update(fakeEntities[0].uuid, {
-        name: newName,
-      });
-      expect(fakeEntities[0].name).toBe(newName);
-    });
-
-    it("should throw an exception if an entity doesn't exist", async () => {
-      await expect(
-        fakeRepository.update('fake-uuid', { name: 'error' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-      await expect(
-        fakeRepository.updateWhere({ name: 'error' }, { name: 'new error' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('delete', () => {
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(fakeRepository.delete('fake-uuid')).rejects.toBeInstanceOf(
-        DatabaseException,
-      );
-    });
-
-    it('should delete an entity', async () => {
-      const savedUuid = fakeEntities[0].uuid;
-
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      const res = await fakeRepository.delete(savedUuid);
-
-      const deletedEntity = fakeEntities.find(
-        (entity) => entity.uuid === savedUuid,
-      );
-      expect(deletedEntity).toBeUndefined();
-    });
-
-    it("should throw an exception if an entity doesn't exist", async () => {
-      await expect(fakeRepository.delete('fake-uuid')).rejects.toBeInstanceOf(
-        DatabaseException,
-      );
-    });
-  });
-
-  describe('deleteMany', () => {
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.deleteMany({ uuid: 'fake-uuid' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should delete entities based on their uuid', async () => {
-      const savedUuid = fakeEntities[0].uuid;
-
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      const res = await fakeRepository.deleteMany({ uuid: savedUuid });
-
-      const deletedEntity = fakeEntities.find(
-        (entity) => entity.uuid === savedUuid,
-      );
-      expect(deletedEntity).toBeUndefined();
-    });
-
-    it("should throw an exception if an entity doesn't exist", async () => {
-      await expect(
-        fakeRepository.deleteMany({ uuid: 'fake-uuid' }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('findAllByquery', () => {
-    it('should return an array of entities', async () => {
-      const entities = await fakeRepository.findAllByQuery(
-        ['uuid', 'name'],
-        ['name is not null'],
-      );
-      expect(entities).toStrictEqual({
-        data: fakeEntities,
-        total: fakeEntities.length,
-      });
-    });
-  });
-
-  describe('createWithFields', () => {
-    it('should create an entity', async () => {
-      jest.spyOn(prisma, '$queryRawUnsafe');
-
-      const newEntity = await fakeRepository.createWithFields({
-        uuid: '804319b3-a09b-4491-9f82-7976bfce0aff',
-        name: 'my-name',
-      });
-      expect(newEntity).toBe(fakeEntityCreated);
-      expect(prisma.$queryRawUnsafe).toHaveBeenCalledTimes(1);
-    });
-
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.createWithFields({
-          uuid: '804319b3-a09b-4491-9f82-7976bfce0aff',
-          name: 'my-name',
-        }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should throw a DatabaseException if uuid is not found', async () => {
-      await expect(
-        fakeRepository.createWithFields({
-          name: 'my-name',
-        }),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('updateWithFields', () => {
-    it('should update an entity', async () => {
-      jest.spyOn(prisma, '$queryRawUnsafe');
-
-      const updatedEntity = await fakeRepository.updateWithFields(
-        '804319b3-a09b-4491-9f82-7976bfce0aff',
-        {
-          name: 'my-name',
-        },
-      );
-      expect(updatedEntity).toBe(fakeEntityCreated);
-      expect(prisma.$queryRawUnsafe).toHaveBeenCalledTimes(1);
-    });
-
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(
-        fakeRepository.updateWithFields(
-          '804319b3-a09b-4491-9f82-7976bfce0aff',
-          {
-            name: 'my-name',
-          },
-        ),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-
-    it('should throw a DatabaseException if uuid is not found', async () => {
-      await expect(
-        fakeRepository.updateWithFields(
-          '804319b3-a09b-4491-9f82-7976bfce0aff',
-          {
-            name: 'my-name',
-          },
-        ),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('healthCheck', () => {
-    it('should throw a DatabaseException for client error', async () => {
-      await expect(fakeRepository.healthCheck()).rejects.toBeInstanceOf(
-        DatabaseException,
-      );
-    });
-
-    it('should return a healthy result', async () => {
-      const res = await fakeRepository.healthCheck();
-      expect(res).toBeTruthy();
-    });
-
-    it('should throw an exception if database is not available', async () => {
-      await expect(fakeRepository.healthCheck()).rejects.toBeInstanceOf(
-        DatabaseException,
-      );
-    });
-  });
-});
--- a/src/modules/health/adapters/primaries/health-server.controller.ts
+++ b/src/modules/health/adapters/primaries/health-server.controller.ts
@ -1,42 +0,0 @@
-import { Controller } from '@nestjs/common';
-import { GrpcMethod } from '@nestjs/microservices';
-import { PrismaHealthIndicatorUseCase } from '../../domain/usecases/prisma.health-indicator.usecase';
-
-enum ServingStatus {
-  UNKNOWN = 0,
-  SERVING = 1,
-  NOT_SERVING = 2,
-}
-
-interface HealthCheckRequest {
-  service: string;
-}
-
-interface HealthCheckResponse {
-  status: ServingStatus;
-}
-
-@Controller()
-export class HealthServerController {
-  constructor(
-    private readonly prismaHealthIndicatorUseCase: PrismaHealthIndicatorUseCase,
-  ) {}
-
-  @GrpcMethod('Health', 'Check')
-  async check(
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    data: HealthCheckRequest,
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    metadata: any,
-  ): Promise<HealthCheckResponse> {
-    const healthCheck = await this.prismaHealthIndicatorUseCase.isHealthy(
-      'prisma',
-    );
-    return {
-      status:
-        healthCheck['prisma'].status == 'up'
-          ? ServingStatus.SERVING
-          : ServingStatus.NOT_SERVING,
-    };
-  }
-}
--- a/src/modules/health/adapters/primaries/health.controller.ts
+++ b/src/modules/health/adapters/primaries/health.controller.ts
@ -1,36 +0,0 @@
-import { Controller, Get, Inject } from '@nestjs/common';
-import {
-  HealthCheckService,
-  HealthCheck,
-  HealthCheckResult,
-} from '@nestjs/terminus';
-import { PrismaHealthIndicatorUseCase } from '../../domain/usecases/prisma.health-indicator.usecase';
-import { MESSAGE_PUBLISHER } from 'src/app.constants';
-import { IPublishMessage } from 'src/interfaces/message-publisher';
-
-@Controller('health')
-export class HealthController {
-  constructor(
-    private readonly prismaHealthIndicatorUseCase: PrismaHealthIndicatorUseCase,
-    private readonly healthCheckService: HealthCheckService,
-    @Inject(MESSAGE_PUBLISHER)
-    private readonly messagePublisher: IPublishMessage,
-  ) {}
-
-  @Get()
-  @HealthCheck()
-  async check() {
-    try {
-      return await this.healthCheckService.check([
-        async () => this.prismaHealthIndicatorUseCase.isHealthy('prisma'),
-      ]);
-    } catch (error) {
-      const healthCheckResult: HealthCheckResult = error.response;
-      this.messagePublisher.publish(
-        'logging.user.health.crit',
-        JSON.stringify(healthCheckResult.error),
-      );
-      throw error;
-    }
-  }
-}
--- a/src/modules/health/adapters/secondaries/message-publisher.ts
+++ b/src/modules/health/adapters/secondaries/message-publisher.ts
@ -1,16 +0,0 @@
-import { Inject, Injectable } from '@nestjs/common';
-import { MESSAGE_BROKER_PUBLISHER } from '../../../../app.constants';
-import { MessageBrokerPublisher } from '@mobicoop/message-broker-module';
-import { IPublishMessage } from 'src/interfaces/message-publisher';
-
-@Injectable()
-export class MessagePublisher implements IPublishMessage {
-  constructor(
-    @Inject(MESSAGE_BROKER_PUBLISHER)
-    private readonly messageBrokerPublisher: MessageBrokerPublisher,
-  ) {}
-
-  publish = (routingKey: string, message: string): void => {
-    this.messageBrokerPublisher.publish(routingKey, message);
-  };
-}
--- a/src/modules/health/domain/usecases/prisma.health-indicator.usecase.ts
+++ b/src/modules/health/domain/usecases/prisma.health-indicator.usecase.ts
@ -1,25 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import {
-  HealthCheckError,
-  HealthIndicator,
-  HealthIndicatorResult,
-} from '@nestjs/terminus';
-import { UsersRepository } from '../../../user/adapters/secondaries/users.repository';
-
-@Injectable()
-export class PrismaHealthIndicatorUseCase extends HealthIndicator {
-  constructor(private readonly repository: UsersRepository) {
-    super();
-  }
-
-  isHealthy = async (key: string): Promise<HealthIndicatorResult> => {
-    try {
-      await this.repository.healthCheck();
-      return this.getStatus(key, true);
-    } catch (e) {
-      throw new HealthCheckError('Prisma', {
-        prisma: e.message,
-      });
-    }
-  };
-}
--- a/src/modules/health/health.module.ts
+++ b/src/modules/health/health.module.ts
@ -1,28 +0,0 @@
-import { Module } from '@nestjs/common';
-import { HealthServerController } from './adapters/primaries/health-server.controller';
-import { PrismaHealthIndicatorUseCase } from './domain/usecases/prisma.health-indicator.usecase';
-import { UsersRepository } from '../user/adapters/secondaries/users.repository';
-import { DatabaseModule } from '../database/database.module';
-import { HealthController } from './adapters/primaries/health.controller';
-import { TerminusModule } from '@nestjs/terminus';
-import { MESSAGE_BROKER_PUBLISHER, MESSAGE_PUBLISHER } from 'src/app.constants';
-import { MessageBrokerPublisher } from '@mobicoop/message-broker-module';
-import { MessagePublisher } from './adapters/secondaries/message-publisher';
-
-@Module({
-  imports: [TerminusModule, DatabaseModule],
-  controllers: [HealthServerController, HealthController],
-  providers: [
-    PrismaHealthIndicatorUseCase,
-    UsersRepository,
-    {
-      provide: MESSAGE_BROKER_PUBLISHER,
-      useClass: MessageBrokerPublisher,
-    },
-    {
-      provide: MESSAGE_PUBLISHER,
-      useClass: MessagePublisher,
-    },
-  ],
-})
-export class HealthModule {}
--- a/src/modules/health/tests/unit/message-publisher.spec.ts
+++ b/src/modules/health/tests/unit/message-publisher.spec.ts
@ -1,36 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { MessagePublisher } from '../../adapters/secondaries/message-publisher';
-import { MESSAGE_BROKER_PUBLISHER } from '../../../../app.constants';
-
-const mockMessageBrokerPublisher = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('Messager', () => {
-  let messagePublisher: MessagePublisher;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [],
-      providers: [
-        MessagePublisher,
-        {
-          provide: MESSAGE_BROKER_PUBLISHER,
-          useValue: mockMessageBrokerPublisher,
-        },
-      ],
-    }).compile();
-
-    messagePublisher = module.get<MessagePublisher>(MessagePublisher);
-  });
-
-  it('should be defined', () => {
-    expect(messagePublisher).toBeDefined();
-  });
-
-  it('should publish a message', async () => {
-    jest.spyOn(mockMessageBrokerPublisher, 'publish');
-    messagePublisher.publish('health.info', 'my-test');
-    expect(mockMessageBrokerPublisher.publish).toHaveBeenCalledTimes(1);
-  });
-});
--- a/src/modules/health/tests/unit/prisma.health-indicator.usecase.spec.ts
+++ b/src/modules/health/tests/unit/prisma.health-indicator.usecase.spec.ts
@ -1,58 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { PrismaHealthIndicatorUseCase } from '../../domain/usecases/prisma.health-indicator.usecase';
-import { UsersRepository } from '../../../user/adapters/secondaries/users.repository';
-import { HealthCheckError, HealthIndicatorResult } from '@nestjs/terminus';
-import { Prisma } from '@prisma/client';
-
-const mockUsersRepository = {
-  healthCheck: jest
-    .fn()
-    .mockImplementationOnce(() => {
-      return Promise.resolve(true);
-    })
-    .mockImplementation(() => {
-      throw new Prisma.PrismaClientKnownRequestError('Service unavailable', {
-        code: 'code',
-        clientVersion: 'version',
-      });
-    }),
-};
-
-describe('PrismaHealthIndicatorUseCase', () => {
-  let prismaHealthIndicatorUseCase: PrismaHealthIndicatorUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUsersRepository,
-        },
-        PrismaHealthIndicatorUseCase,
-      ],
-    }).compile();
-
-    prismaHealthIndicatorUseCase = module.get<PrismaHealthIndicatorUseCase>(
-      PrismaHealthIndicatorUseCase,
-    );
-  });
-
-  it('should be defined', () => {
-    expect(prismaHealthIndicatorUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should check health successfully', async () => {
-      const healthIndicatorResult: HealthIndicatorResult =
-        await prismaHealthIndicatorUseCase.isHealthy('prisma');
-
-      expect(healthIndicatorResult['prisma'].status).toBe('up');
-    });
-
-    it('should throw an error if database is unavailable', async () => {
-      await expect(
-        prismaHealthIndicatorUseCase.isHealthy('prisma'),
-      ).rejects.toBeInstanceOf(HealthCheckError);
-    });
-  });
-});
--- a/src/modules/messager/messager.di-tokens.ts
+++ b/src/modules/messager/messager.di-tokens.ts
@ -0,0 +1 @@
+export const MESSAGE_PUBLISHER = Symbol('MESSAGE_PUBLISHER');
--- a/src/modules/messager/messager.module.ts
+++ b/src/modules/messager/messager.module.ts
@ -0,0 +1,36 @@
+import { Module, Provider } from '@nestjs/common';
+import { MESSAGE_PUBLISHER } from './messager.di-tokens';
+import {
+  MessageBrokerModule,
+  MessageBrokerModuleOptions,
+  MessageBrokerPublisher,
+} from '@mobicoop/message-broker-module';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+
+const imports = [
+  MessageBrokerModule.forRootAsync({
+    imports: [ConfigModule],
+    inject: [ConfigService],
+    useFactory: async (
+      configService: ConfigService,
+    ): Promise<MessageBrokerModuleOptions> => ({
+      uri: configService.get<string>('MESSAGE_BROKER_URI'),
+      exchange: configService.get<string>('MESSAGE_BROKER_EXCHANGE'),
+      name: 'user',
+    }),
+  }),
+];
+
+const providers: Provider[] = [
+  {
+    provide: MESSAGE_PUBLISHER,
+    useClass: MessageBrokerPublisher,
+  },
+];
+
+@Module({
+  imports,
+  providers,
+  exports: [MESSAGE_PUBLISHER],
+})
+export class MessagerModule {}
--- a/src/modules/user/adapters/primaries/user.controller.ts
+++ b/src/modules/user/adapters/primaries/user.controller.ts
@ -1,121 +0,0 @@
-import { Mapper } from '@automapper/core';
-import { InjectMapper } from '@automapper/nestjs';
-import { Controller, UseInterceptors, UsePipes } from '@nestjs/common';
-import { CommandBus, QueryBus } from '@nestjs/cqrs';
-import { GrpcMethod, RpcException } from '@nestjs/microservices';
-import { DatabaseException } from '../../../database/exceptions/database.exception';
-import { CreateUserCommand } from '../../commands/create-user.command';
-import { DeleteUserCommand } from '../../commands/delete-user.command';
-import { UpdateUserCommand } from '../../commands/update-user.command';
-import { CreateUserRequest } from '../../domain/dtos/create-user.request';
-import { FindAllUsersRequest } from '../../domain/dtos/find-all-users.request';
-import { FindUserByUuidRequest } from '../../domain/dtos/find-user-by-uuid.request';
-import { UpdateUserRequest } from '../../domain/dtos/update-user.request';
-import { User } from '../../domain/entities/user';
-import { FindAllUsersQuery } from '../../queries/find-all-users.query';
-import { FindUserByUuidQuery } from '../../queries/find-user-by-uuid.query';
-import { UserPresenter } from './user.presenter';
-import { ICollection } from '../../../database/interfaces/collection.interface';
-import { RpcValidationPipe } from '../../../../utils/pipes/rpc.validation-pipe';
-import { CacheInterceptor, CacheKey } from '@nestjs/cache-manager';
-
-@UsePipes(
-  new RpcValidationPipe({
-    whitelist: true,
-    forbidUnknownValues: false,
-  }),
-)
-@Controller()
-export class UserController {
-  constructor(
-    private readonly commandBus: CommandBus,
-    private readonly queryBus: QueryBus,
-    @InjectMapper() private readonly mapper: Mapper,
-  ) {}
-
-  @GrpcMethod('UsersService', 'FindAll')
-  @UseInterceptors(CacheInterceptor)
-  @CacheKey('UsersServiceFindAll')
-  async findAll(data: FindAllUsersRequest): Promise<ICollection<User>> {
-    const userCollection = await this.queryBus.execute(
-      new FindAllUsersQuery(data),
-    );
-    return Promise.resolve({
-      data: userCollection.data.map((user: User) =>
-        this.mapper.map(user, User, UserPresenter),
-      ),
-      total: userCollection.total,
-    });
-  }
-
-  @GrpcMethod('UsersService', 'FindOneByUuid')
-  @UseInterceptors(CacheInterceptor)
-  @CacheKey('UsersServiceFindOneByUuid')
-  async findOneByUuid(data: FindUserByUuidRequest): Promise<UserPresenter> {
-    try {
-      const user = await this.queryBus.execute(new FindUserByUuidQuery(data));
-      return this.mapper.map(user, User, UserPresenter);
-    } catch (error) {
-      throw new RpcException({
-        code: 5,
-        message: 'User not found',
-      });
-    }
-  }
-
-  @GrpcMethod('UsersService', 'Create')
-  async createUser(data: CreateUserRequest): Promise<UserPresenter> {
-    try {
-      const user = await this.commandBus.execute(new CreateUserCommand(data));
-      return this.mapper.map(user, User, UserPresenter);
-    } catch (e) {
-      if (e instanceof DatabaseException) {
-        if (e.message.includes('Already exists')) {
-          throw new RpcException({
-            code: 6,
-            message: 'User already exists',
-          });
-        }
-      }
-      throw new RpcException({});
-    }
-  }
-
-  @GrpcMethod('UsersService', 'Update')
-  async updateUser(data: UpdateUserRequest): Promise<UserPresenter> {
-    try {
-      const user = await this.commandBus.execute(new UpdateUserCommand(data));
-
-      return this.mapper.map(user, User, UserPresenter);
-    } catch (e) {
-      if (e instanceof DatabaseException) {
-        if (e.message.includes('not found')) {
-          throw new RpcException({
-            code: 5,
-            message: 'User not found',
-          });
-        }
-      }
-      throw new RpcException({});
-    }
-  }
-
-  @GrpcMethod('UsersService', 'Delete')
-  async deleteUser(data: FindUserByUuidRequest): Promise<void> {
-    try {
-      await this.commandBus.execute(new DeleteUserCommand(data.uuid));
-
-      return Promise.resolve();
-    } catch (e) {
-      if (e instanceof DatabaseException) {
-        if (e.message.includes('not found')) {
-          throw new RpcException({
-            code: 5,
-            message: 'User not found',
-          });
-        }
-      }
-      throw new RpcException({});
-    }
-  }
-}
--- a/src/modules/user/adapters/primaries/user.presenter.ts
+++ b/src/modules/user/adapters/primaries/user.presenter.ts
@ -1,18 +0,0 @@
-import { AutoMap } from '@automapper/classes';
-
-export class UserPresenter {
-  @AutoMap()
-  uuid: string;
-
-  @AutoMap()
-  firstName: string;
-
-  @AutoMap()
-  lastName: string;
-
-  @AutoMap()
-  email: string;
-
-  @AutoMap()
-  phone: string;
-}
--- a/src/modules/user/adapters/secondaries/message-publisher.ts
+++ b/src/modules/user/adapters/secondaries/message-publisher.ts
@ -1,16 +0,0 @@
-import { Inject, Injectable } from '@nestjs/common';
-import { IPublishMessage } from '../../../../interfaces/message-publisher';
-import { MESSAGE_BROKER_PUBLISHER } from '../../../../app.constants';
-import { MessageBrokerPublisher } from '@mobicoop/message-broker-module';
-
-@Injectable()
-export class MessagePublisher implements IPublishMessage {
-  constructor(
-    @Inject(MESSAGE_BROKER_PUBLISHER)
-    private readonly messageBrokerPublisher: MessageBrokerPublisher,
-  ) {}
-
-  publish = (routingKey: string, message: string): void => {
-    this.messageBrokerPublisher.publish(routingKey, message);
-  };
-}
--- a/src/modules/user/adapters/secondaries/users.repository.ts
+++ b/src/modules/user/adapters/secondaries/users.repository.ts
@ -1,8 +0,0 @@
-import { Injectable } from '@nestjs/common';
-import { UserRepository } from '../../../database/domain/user-repository';
-import { User } from '../../domain/entities/user';
-
-@Injectable()
-export class UsersRepository extends UserRepository<User> {
-  protected model = 'user';
-}
--- a/src/modules/user/commands/create-user.command.ts
+++ b/src/modules/user/commands/create-user.command.ts
@ -1,9 +0,0 @@
-import { CreateUserRequest } from '../domain/dtos/create-user.request';
-
-export class CreateUserCommand {
-  readonly createUserRequest: CreateUserRequest;
-
-  constructor(request: CreateUserRequest) {
-    this.createUserRequest = request;
-  }
-}
--- a/src/modules/user/commands/delete-user.command.ts
+++ b/src/modules/user/commands/delete-user.command.ts
@ -1,7 +0,0 @@
-export class DeleteUserCommand {
-  readonly uuid: string;
-
-  constructor(uuid: string) {
-    this.uuid = uuid;
-  }
-}
--- a/src/modules/user/commands/update-user.command.ts
+++ b/src/modules/user/commands/update-user.command.ts
@ -1,9 +0,0 @@
-import { UpdateUserRequest } from '../domain/dtos/update-user.request';
-
-export class UpdateUserCommand {
-  readonly updateUserRequest: UpdateUserRequest;
-
-  constructor(request: UpdateUserRequest) {
-    this.updateUserRequest = request;
-  }
-}
--- a/src/modules/user/core/application/commands/create-user/create-user.command.ts
+++ b/src/modules/user/core/application/commands/create-user/create-user.command.ts
@ -0,0 +1,16 @@
+import { Command, CommandProps } from '@mobicoop/ddd-library';
+
+export class CreateUserCommand extends Command {
+  readonly firstName?: string;
+  readonly lastName?: string;
+  readonly email?: string;
+  readonly phone?: string;
+
+  constructor(props: CommandProps<CreateUserCommand>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/application/commands/create-user/create-user.service.ts
+++ b/src/modules/user/core/application/commands/create-user/create-user.service.ts
@ -0,0 +1,55 @@
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { Inject } from '@nestjs/common';
+import {
+  AggregateID,
+  ConflictException,
+  UniqueConstraintException,
+} from '@mobicoop/ddd-library';
+import { CreateUserCommand } from './create-user.command';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserRepositoryPort } from '../../ports/user.repository.port';
+import { UserEntity } from '../../../domain/user.entity';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+  UserAlreadyExistsException,
+} from '../../../domain/user.errors';
+
+@CommandHandler(CreateUserCommand)
+export class CreateUserService implements ICommandHandler {
+  constructor(
+    @Inject(USER_REPOSITORY)
+    private readonly repository: UserRepositoryPort,
+  ) {}
+
+  async execute(command: CreateUserCommand): Promise<AggregateID> {
+    const user = UserEntity.create({
+      firstName: command.firstName,
+      lastName: command.lastName,
+      email: command.email,
+      phone: command.phone,
+    });
+
+    try {
+      await this.repository.insert(user);
+      return user.id;
+    } catch (error: any) {
+      if (error instanceof ConflictException) {
+        throw new UserAlreadyExistsException(error);
+      }
+      if (
+        error instanceof UniqueConstraintException &&
+        error.message.includes('email')
+      ) {
+        throw new EmailAlreadyExistsException(error);
+      }
+      if (
+        error instanceof UniqueConstraintException &&
+        error.message.includes('phone')
+      ) {
+        throw new PhoneAlreadyExistsException(error);
+      }
+      throw error;
+    }
+  }
+}
--- a/src/modules/user/core/application/commands/delete-user/delete-user.command.ts
+++ b/src/modules/user/core/application/commands/delete-user/delete-user.command.ts
@ -0,0 +1,7 @@
+import { Command, CommandProps } from '@mobicoop/ddd-library';
+
+export class DeleteUserCommand extends Command {
+  constructor(props: CommandProps<DeleteUserCommand>) {
+    super(props);
+  }
+}
--- a/src/modules/user/core/application/commands/delete-user/delete-user.service.ts
+++ b/src/modules/user/core/application/commands/delete-user/delete-user.service.ts
@ -0,0 +1,21 @@
+import { Inject } from '@nestjs/common';
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { DeleteUserCommand } from './delete-user.command';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserRepositoryPort } from '../../ports/user.repository.port';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+
+@CommandHandler(DeleteUserCommand)
+export class DeleteUserService implements ICommandHandler {
+  constructor(
+    @Inject(USER_REPOSITORY)
+    private readonly userRepository: UserRepositoryPort,
+  ) {}
+
+  async execute(command: DeleteUserCommand): Promise<boolean> {
+    const user: UserEntity = await this.userRepository.findOneById(command.id);
+    user.delete();
+    const isDeleted: boolean = await this.userRepository.delete(user);
+    return isDeleted;
+  }
+}
--- a/src/modules/user/core/application/commands/update-user/update-user.command.ts
+++ b/src/modules/user/core/application/commands/update-user/update-user.command.ts
@ -0,0 +1,16 @@
+import { Command, CommandProps } from '@mobicoop/ddd-library';
+
+export class UpdateUserCommand extends Command {
+  readonly firstName?: string;
+  readonly lastName?: string;
+  readonly email?: string;
+  readonly phone?: string;
+
+  constructor(props: CommandProps<UpdateUserCommand>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/application/commands/update-user/update-user.service.ts
+++ b/src/modules/user/core/application/commands/update-user/update-user.service.ts
@ -0,0 +1,49 @@
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { Inject } from '@nestjs/common';
+import { AggregateID, UniqueConstraintException } from '@mobicoop/ddd-library';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserRepositoryPort } from '../../ports/user.repository.port';
+import { UserEntity } from '../../../domain/user.entity';
+import { UpdateUserCommand } from './update-user.command';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+
+@CommandHandler(UpdateUserCommand)
+export class UpdateUserService implements ICommandHandler {
+  constructor(
+    @Inject(USER_REPOSITORY)
+    private readonly userRepository: UserRepositoryPort,
+  ) {}
+
+  async execute(command: UpdateUserCommand): Promise<AggregateID> {
+    try {
+      const user: UserEntity = await this.userRepository.findOneById(
+        command.id,
+      );
+      user.update({
+        firstName: command.firstName,
+        lastName: command.lastName,
+        email: command.email,
+        phone: command.phone,
+      });
+      await this.userRepository.update(user.id, user);
+      return user.id;
+    } catch (error: any) {
+      if (
+        error instanceof UniqueConstraintException &&
+        error.message.includes('email')
+      ) {
+        throw new EmailAlreadyExistsException(error);
+      }
+      if (
+        error instanceof UniqueConstraintException &&
+        error.message.includes('phone')
+      ) {
+        throw new PhoneAlreadyExistsException(error);
+      }
+      throw error;
+    }
+  }
+}
--- a/src/modules/user/core/application/event-handlers/publish-message-when-user-is-created.domain-event-handler.ts
+++ b/src/modules/user/core/application/event-handlers/publish-message-when-user-is-created.domain-event-handler.ts
@ -0,0 +1,31 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { OnEvent } from '@nestjs/event-emitter';
+import { MessagePublisherPort } from '@mobicoop/ddd-library';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { UserCreatedDomainEvent } from '../../domain/events/user-created.domain-event';
+import { UserCreatedIntegrationEvent } from '../events/user-created.integration-event';
+import { USER_CREATED_ROUTING_KEY } from '@modules/user/user.constants';
+
+@Injectable()
+export class PublishMessageWhenUserIsCreatedDomainEventHandler {
+  constructor(
+    @Inject(USER_MESSAGE_PUBLISHER)
+    private readonly messagePublisher: MessagePublisherPort,
+  ) {}
+
+  @OnEvent(UserCreatedDomainEvent.name, { async: true, promisify: true })
+  async handle(event: UserCreatedDomainEvent): Promise<any> {
+    const userCreatedIntegrationEvent = new UserCreatedIntegrationEvent({
+      id: event.aggregateId,
+      firstName: event.firstName,
+      lastName: event.lastName,
+      email: event.email,
+      phone: event.phone,
+      metadata: event.metadata,
+    });
+    this.messagePublisher.publish(
+      USER_CREATED_ROUTING_KEY,
+      JSON.stringify(userCreatedIntegrationEvent),
+    );
+  }
+}
--- a/src/modules/user/core/application/event-handlers/publish-message-when-user-is-deleted.domain-event-handler.ts
+++ b/src/modules/user/core/application/event-handlers/publish-message-when-user-is-deleted.domain-event-handler.ts
@ -0,0 +1,27 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { OnEvent } from '@nestjs/event-emitter';
+import { MessagePublisherPort } from '@mobicoop/ddd-library';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { UserDeletedDomainEvent } from '../../domain/events/user-deleted.domain-event';
+import { UserDeletedIntegrationEvent } from '../events/user-deleted.integration-event';
+import { USER_DELETED_ROUTING_KEY } from '@modules/user/user.constants';
+
+@Injectable()
+export class PublishMessageWhenUserIsDeletedDomainEventHandler {
+  constructor(
+    @Inject(USER_MESSAGE_PUBLISHER)
+    private readonly messagePublisher: MessagePublisherPort,
+  ) {}
+
+  @OnEvent(UserDeletedDomainEvent.name, { async: true, promisify: true })
+  async handle(event: UserDeletedDomainEvent): Promise<any> {
+    const userDeletedIntegrationEvent = new UserDeletedIntegrationEvent({
+      id: event.aggregateId,
+      metadata: event.metadata,
+    });
+    this.messagePublisher.publish(
+      USER_DELETED_ROUTING_KEY,
+      JSON.stringify(userDeletedIntegrationEvent),
+    );
+  }
+}
--- a/src/modules/user/core/application/event-handlers/publish-message-when-user-is-updated.domain-event-handler.ts
+++ b/src/modules/user/core/application/event-handlers/publish-message-when-user-is-updated.domain-event-handler.ts
@ -0,0 +1,31 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { OnEvent } from '@nestjs/event-emitter';
+import { MessagePublisherPort } from '@mobicoop/ddd-library';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { UserUpdatedDomainEvent } from '../../domain/events/user-updated.domain-event';
+import { UserUpdatedIntegrationEvent } from '../events/user-updated.integration-event';
+import { USER_UPDATED_ROUTING_KEY } from '@modules/user/user.constants';
+
+@Injectable()
+export class PublishMessageWhenUserIsUpdatedDomainEventHandler {
+  constructor(
+    @Inject(USER_MESSAGE_PUBLISHER)
+    private readonly messagePublisher: MessagePublisherPort,
+  ) {}
+
+  @OnEvent(UserUpdatedDomainEvent.name, { async: true, promisify: true })
+  async handle(event: UserUpdatedDomainEvent): Promise<any> {
+    const userUpdatedIntegrationEvent = new UserUpdatedIntegrationEvent({
+      id: event.aggregateId,
+      firstName: event.firstName,
+      lastName: event.lastName,
+      email: event.email,
+      phone: event.phone,
+      metadata: event.metadata,
+    });
+    this.messagePublisher.publish(
+      USER_UPDATED_ROUTING_KEY,
+      JSON.stringify(userUpdatedIntegrationEvent),
+    );
+  }
+}
--- a/src/modules/user/core/application/events/user-created.integration-event.ts
+++ b/src/modules/user/core/application/events/user-created.integration-event.ts
@ -0,0 +1,16 @@
+import { IntegrationEvent, IntegrationEventProps } from '@mobicoop/ddd-library';
+
+export class UserCreatedIntegrationEvent extends IntegrationEvent {
+  readonly firstName: string;
+  readonly lastName: string;
+  readonly email: string;
+  readonly phone: string;
+
+  constructor(props: IntegrationEventProps<UserCreatedIntegrationEvent>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/application/events/user-deleted.integration-event.ts
+++ b/src/modules/user/core/application/events/user-deleted.integration-event.ts
@ -0,0 +1,7 @@
+import { IntegrationEvent, IntegrationEventProps } from '@mobicoop/ddd-library';
+
+export class UserDeletedIntegrationEvent extends IntegrationEvent {
+  constructor(props: IntegrationEventProps<UserDeletedIntegrationEvent>) {
+    super(props);
+  }
+}
--- a/src/modules/user/core/application/events/user-updated.integration-event.ts
+++ b/src/modules/user/core/application/events/user-updated.integration-event.ts
@ -0,0 +1,16 @@
+import { IntegrationEvent, IntegrationEventProps } from '@mobicoop/ddd-library';
+
+export class UserUpdatedIntegrationEvent extends IntegrationEvent {
+  readonly firstName: string;
+  readonly lastName: string;
+  readonly email: string;
+  readonly phone: string;
+
+  constructor(props: IntegrationEventProps<UserUpdatedIntegrationEvent>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/application/ports/user.repository.port.ts
+++ b/src/modules/user/core/application/ports/user.repository.port.ts
@ -0,0 +1,4 @@
+import { RepositoryPort } from '@mobicoop/ddd-library';
+import { UserEntity } from '../../domain/user.entity';
+
+export type UserRepositoryPort = RepositoryPort<UserEntity>;
--- a/src/modules/user/core/application/queries/find-user-by-id/find-user-by-id.query-handler.ts
+++ b/src/modules/user/core/application/queries/find-user-by-id/find-user-by-id.query-handler.ts
@ -0,0 +1,17 @@
+import { IQueryHandler, QueryHandler } from '@nestjs/cqrs';
+import { FindUserByIdQuery } from './find-user-by-id.query';
+import { Inject } from '@nestjs/common';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserRepositoryPort } from '../../ports/user.repository.port';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+
+@QueryHandler(FindUserByIdQuery)
+export class FindUserByIdQueryHandler implements IQueryHandler {
+  constructor(
+    @Inject(USER_REPOSITORY)
+    private readonly userRepository: UserRepositoryPort,
+  ) {}
+  async execute(query: FindUserByIdQuery): Promise<UserEntity> {
+    return await this.userRepository.findOneById(query.id);
+  }
+}
--- a/src/modules/user/core/application/queries/find-user-by-id/find-user-by-id.query.ts
+++ b/src/modules/user/core/application/queries/find-user-by-id/find-user-by-id.query.ts
@ -0,0 +1,10 @@
+import { QueryBase } from '@mobicoop/ddd-library';
+
+export class FindUserByIdQuery extends QueryBase {
+  readonly id: string;
+
+  constructor(id: string) {
+    super();
+    this.id = id;
+  }
+}
--- a/src/modules/user/core/domain/events/user-created.domain-event.ts
+++ b/src/modules/user/core/domain/events/user-created.domain-event.ts
@ -0,0 +1,16 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class UserCreatedDomainEvent extends DomainEvent {
+  readonly firstName: string;
+  readonly lastName: string;
+  readonly email: string;
+  readonly phone: string;
+
+  constructor(props: DomainEventProps<UserCreatedDomainEvent>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/domain/events/user-deleted.domain-event.ts
+++ b/src/modules/user/core/domain/events/user-deleted.domain-event.ts
@ -0,0 +1,7 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class UserDeletedDomainEvent extends DomainEvent {
+  constructor(props: DomainEventProps<UserDeletedDomainEvent>) {
+    super(props);
+  }
+}
--- a/src/modules/user/core/domain/events/user-updated.domain-event.ts
+++ b/src/modules/user/core/domain/events/user-updated.domain-event.ts
@ -0,0 +1,16 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class UserUpdatedDomainEvent extends DomainEvent {
+  readonly firstName: string;
+  readonly lastName: string;
+  readonly email: string;
+  readonly phone: string;
+
+  constructor(props: DomainEventProps<UserUpdatedDomainEvent>) {
+    super(props);
+    this.firstName = props.firstName;
+    this.lastName = props.lastName;
+    this.email = props.email;
+    this.phone = props.phone;
+  }
+}
--- a/src/modules/user/core/domain/user.entity.ts
+++ b/src/modules/user/core/domain/user.entity.ts
@ -0,0 +1,55 @@
+import { AggregateRoot, AggregateID } from '@mobicoop/ddd-library';
+import { v4 } from 'uuid';
+import { CreateUserProps, UpdateUserProps, UserProps } from './user.types';
+import { UserCreatedDomainEvent } from './events/user-created.domain-event';
+import { UserUpdatedDomainEvent } from './events/user-updated.domain-event';
+import { UserDeletedDomainEvent } from './events/user-deleted.domain-event';
+
+export class UserEntity extends AggregateRoot<UserProps> {
+  protected readonly _id: AggregateID;
+
+  static create = (create: CreateUserProps): UserEntity => {
+    const id = v4();
+    const props: UserProps = { ...create };
+    const user = new UserEntity({ id, props });
+
+    user.addEvent(
+      new UserCreatedDomainEvent({
+        aggregateId: id,
+        firstName: props.firstName,
+        lastName: props.lastName,
+        email: props.email,
+        phone: props.phone,
+      }),
+    );
+    return user;
+  };
+
+  update(props: UpdateUserProps): void {
+    this.props.firstName = props.firstName ?? this.props.firstName;
+    this.props.lastName = props.lastName ?? this.props.lastName;
+    this.props.email = props.email ?? this.props.email;
+    this.props.phone = props.phone ?? this.props.phone;
+    this.addEvent(
+      new UserUpdatedDomainEvent({
+        aggregateId: this._id,
+        firstName: props.firstName,
+        lastName: props.lastName,
+        email: props.email,
+        phone: props.phone,
+      }),
+    );
+  }
+
+  delete(): void {
+    this.addEvent(
+      new UserDeletedDomainEvent({
+        aggregateId: this.id,
+      }),
+    );
+  }
+
+  validate(): void {
+    // entity business rules validation to protect it's invariant before saving entity to a database
+  }
+}
--- a/src/modules/user/core/domain/user.errors.ts
+++ b/src/modules/user/core/domain/user.errors.ts
@ -0,0 +1,31 @@
+import { ExceptionBase } from '@mobicoop/ddd-library';
+
+export class UserAlreadyExistsException extends ExceptionBase {
+  static readonly message = 'User already exists';
+
+  public readonly code = 'USER.ALREADY_EXISTS';
+
+  constructor(cause?: Error, metadata?: unknown) {
+    super(UserAlreadyExistsException.message, cause, metadata);
+  }
+}
+
+export class EmailAlreadyExistsException extends ExceptionBase {
+  static readonly message = 'Email already exists';
+
+  public readonly code = 'EMAIL.ALREADY_EXISTS';
+
+  constructor(cause?: Error, metadata?: unknown) {
+    super(EmailAlreadyExistsException.message, cause, metadata);
+  }
+}
+
+export class PhoneAlreadyExistsException extends ExceptionBase {
+  static readonly message = 'Phone already exists';
+
+  public readonly code = 'PHONE.ALREADY_EXISTS';
+
+  constructor(cause?: Error, metadata?: unknown) {
+    super(PhoneAlreadyExistsException.message, cause, metadata);
+  }
+}
--- a/src/modules/user/core/domain/user.types.ts
+++ b/src/modules/user/core/domain/user.types.ts
@ -0,0 +1,22 @@
+// All properties that a User has
+export interface UserProps {
+  firstName?: string;
+  lastName?: string;
+  email?: string;
+  phone?: string;
+}
+
+// Properties that are needed for a User creation
+export interface CreateUserProps {
+  firstName?: string;
+  lastName?: string;
+  email?: string;
+  phone?: string;
+}
+
+export interface UpdateUserProps {
+  firstName?: string;
+  lastName?: string;
+  email?: string;
+  phone?: string;
+}
--- a/src/modules/user/domain/dtos/find-all-users.request.ts
+++ b/src/modules/user/domain/dtos/find-all-users.request.ts
@ -1,11 +0,0 @@
-import { IsInt, IsOptional } from 'class-validator';
-
-export class FindAllUsersRequest {
-  @IsInt()
-  @IsOptional()
-  page?: number;
-
-  @IsInt()
-  @IsOptional()
-  perPage?: number;
-}
--- a/src/modules/user/domain/dtos/update-user.request.ts
+++ b/src/modules/user/domain/dtos/update-user.request.ts
@ -1,35 +0,0 @@
-import { AutoMap } from '@automapper/classes';
-import {
-  IsEmail,
-  IsNotEmpty,
-  IsOptional,
-  IsPhoneNumber,
-  IsString,
-} from 'class-validator';
-
-export class UpdateUserRequest {
-  @IsString()
-  @IsNotEmpty()
-  @AutoMap()
-  uuid: string;
-
-  @IsString()
-  @IsOptional()
-  @AutoMap()
-  firstName?: string;
-
-  @IsString()
-  @IsOptional()
-  @AutoMap()
-  lastName?: string;
-
-  @IsEmail()
-  @IsOptional()
-  @AutoMap()
-  email?: string;
-
-  @IsPhoneNumber()
-  @IsOptional()
-  @AutoMap()
-  phone?: string;
-}
--- a/src/modules/user/domain/entities/user.ts
+++ b/src/modules/user/domain/entities/user.ts
@ -1,18 +0,0 @@
-import { AutoMap } from '@automapper/classes';
-
-export class User {
-  @AutoMap()
-  uuid: string;
-
-  @AutoMap()
-  firstName?: string;
-
-  @AutoMap()
-  lastName?: string;
-
-  @AutoMap()
-  email?: string;
-
-  @AutoMap()
-  phone?: string;
-}
--- a/src/modules/user/domain/usecases/create-user.usecase.ts
+++ b/src/modules/user/domain/usecases/create-user.usecase.ts
@ -1,51 +0,0 @@
-import { Mapper } from '@automapper/core';
-import { InjectMapper } from '@automapper/nestjs';
-import { CommandHandler } from '@nestjs/cqrs';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { CreateUserCommand } from '../../commands/create-user.command';
-import { CreateUserRequest } from '../dtos/create-user.request';
-import { User } from '../entities/user';
-import { Inject } from '@nestjs/common';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-import { IPublishMessage } from '../../../../interfaces/message-publisher';
-
-@CommandHandler(CreateUserCommand)
-export class CreateUserUseCase {
-  constructor(
-    private readonly repository: UsersRepository,
-    @Inject(MESSAGE_PUBLISHER)
-    private readonly messagePublisher: IPublishMessage,
-    @InjectMapper() private readonly mapper: Mapper,
-  ) {}
-
-  execute = async (command: CreateUserCommand): Promise<User> => {
-    const entity = this.mapper.map(
-      command.createUserRequest,
-      CreateUserRequest,
-      User,
-    );
-
-    try {
-      const user = await this.repository.create(entity);
-      this.messagePublisher.publish('user.create', JSON.stringify(user));
-      this.messagePublisher.publish(
-        'logging.user.create.info',
-        JSON.stringify(user),
-      );
-      return user;
-    } catch (error) {
-      let key = 'logging.user.create.crit';
-      if (error.message.includes('Already exists')) {
-        key = 'logging.user.create.warning';
-      }
-      this.messagePublisher.publish(
-        key,
-        JSON.stringify({
-          command,
-          error,
-        }),
-      );
-      throw error;
-    }
-  };
-}
--- a/src/modules/user/domain/usecases/delete-user.usecase.ts
+++ b/src/modules/user/domain/usecases/delete-user.usecase.ts
@ -1,40 +0,0 @@
-import { CommandHandler } from '@nestjs/cqrs';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { DeleteUserCommand } from '../../commands/delete-user.command';
-import { User } from '../entities/user';
-import { IPublishMessage } from '../../../../interfaces/message-publisher';
-import { Inject } from '@nestjs/common';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-
-@CommandHandler(DeleteUserCommand)
-export class DeleteUserUseCase {
-  constructor(
-    private readonly repository: UsersRepository,
-    @Inject(MESSAGE_PUBLISHER)
-    private readonly messagePublisher: IPublishMessage,
-  ) {}
-
-  execute = async (command: DeleteUserCommand): Promise<User> => {
-    try {
-      const user = await this.repository.delete(command.uuid);
-      this.messagePublisher.publish(
-        'user.delete',
-        JSON.stringify({ uuid: user.uuid }),
-      );
-      this.messagePublisher.publish(
-        'logging.user.delete.info',
-        JSON.stringify({ uuid: user.uuid }),
-      );
-      return user;
-    } catch (error) {
-      this.messagePublisher.publish(
-        'logging.user.delete.crit',
-        JSON.stringify({
-          command,
-          error,
-        }),
-      );
-      throw error;
-    }
-  };
-}
--- a/src/modules/user/domain/usecases/find-all-users.usecase.ts
+++ b/src/modules/user/domain/usecases/find-all-users.usecase.ts
@ -1,15 +0,0 @@
-import { QueryHandler } from '@nestjs/cqrs';
-import { ICollection } from 'src/modules/database/interfaces/collection.interface';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { FindAllUsersQuery } from '../../queries/find-all-users.query';
-import { User } from '../entities/user';
-
-@QueryHandler(FindAllUsersQuery)
-export class FindAllUsersUseCase {
-  constructor(private readonly repository: UsersRepository) {}
-
-  execute = async (
-    findAllUsersQuery: FindAllUsersQuery,
-  ): Promise<ICollection<User>> =>
-    this.repository.findAll(findAllUsersQuery.page, findAllUsersQuery.perPage);
-}
--- a/src/modules/user/domain/usecases/find-user-by-uuid.usecase.ts
+++ b/src/modules/user/domain/usecases/find-user-by-uuid.usecase.ts
@ -1,33 +0,0 @@
-import { Inject, NotFoundException } from '@nestjs/common';
-import { QueryHandler } from '@nestjs/cqrs';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { FindUserByUuidQuery } from '../../queries/find-user-by-uuid.query';
-import { User } from '../entities/user';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-import { IPublishMessage } from '../../../../interfaces/message-publisher';
-
-@QueryHandler(FindUserByUuidQuery)
-export class FindUserByUuidUseCase {
-  constructor(
-    private readonly repository: UsersRepository,
-    @Inject(MESSAGE_PUBLISHER)
-    private readonly messagePublisher: IPublishMessage,
-  ) {}
-
-  execute = async (findUserByUuid: FindUserByUuidQuery): Promise<User> => {
-    try {
-      const user = await this.repository.findOneByUuid(findUserByUuid.uuid);
-      if (!user) throw new NotFoundException();
-      return user;
-    } catch (error) {
-      this.messagePublisher.publish(
-        'logging.user.read.warning',
-        JSON.stringify({
-          query: findUserByUuid,
-          error,
-        }),
-      );
-      throw error;
-    }
-  };
-}
--- a/src/modules/user/domain/usecases/update-user.usecase.ts
+++ b/src/modules/user/domain/usecases/update-user.usecase.ts
@ -1,53 +0,0 @@
-import { Mapper } from '@automapper/core';
-import { InjectMapper } from '@automapper/nestjs';
-import { CommandHandler } from '@nestjs/cqrs';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { UpdateUserCommand } from '../../commands/update-user.command';
-import { UpdateUserRequest } from '../dtos/update-user.request';
-import { User } from '../entities/user';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-import { Inject } from '@nestjs/common';
-import { IPublishMessage } from '../../../../interfaces/message-publisher';
-
-@CommandHandler(UpdateUserCommand)
-export class UpdateUserUseCase {
-  constructor(
-    private readonly repository: UsersRepository,
-    @Inject(MESSAGE_PUBLISHER)
-    private readonly messagePublisher: IPublishMessage,
-    @InjectMapper() private readonly mapper: Mapper,
-  ) {}
-
-  execute = async (command: UpdateUserCommand): Promise<User> => {
-    const entity = this.mapper.map(
-      command.updateUserRequest,
-      UpdateUserRequest,
-      User,
-    );
-
-    try {
-      const user = await this.repository.update(
-        command.updateUserRequest.uuid,
-        entity,
-      );
-      this.messagePublisher.publish(
-        'user.update',
-        JSON.stringify(command.updateUserRequest),
-      );
-      this.messagePublisher.publish(
-        'logging.user.update.info',
-        JSON.stringify(command.updateUserRequest),
-      );
-      return user;
-    } catch (error) {
-      this.messagePublisher.publish(
-        'logging.user.update.crit',
-        JSON.stringify({
-          command,
-          error,
-        }),
-      );
-      throw error;
-    }
-  };
-}
--- a/src/modules/database/adapters/secondaries/prisma-service.ts
+++ b/src/modules/database/adapters/secondaries/prisma-service.ts
--- a/src/modules/user/infrastructure/user.repository.ts
+++ b/src/modules/user/infrastructure/user.repository.ts
@ -0,0 +1,56 @@
+import { Inject, Injectable, Logger } from '@nestjs/common';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import {
+  LoggerBase,
+  MessagePublisherPort,
+  PrismaRepositoryBase,
+} from '@mobicoop/ddd-library';
+import { PrismaService } from './prisma.service';
+import { UserEntity } from '../core/domain/user.entity';
+import { UserRepositoryPort } from '../core/application/ports/user.repository.port';
+import { UserMapper } from '../user.mapper';
+import { USER_MESSAGE_PUBLISHER } from '../user.di-tokens';
+
+export type UserBaseModel = {
+  uuid: string;
+  firstName: string;
+  lastName: string;
+  email: string;
+  phone: string;
+};
+
+export type UserReadModel = UserBaseModel & {
+  createdAt?: Date;
+  updatedAt?: Date;
+};
+
+export type UserWriteModel = UserBaseModel;
+
+/**
+ *  Repository is used for retrieving/saving domain entities
+ * */
+@Injectable()
+export class UserRepository
+  extends PrismaRepositoryBase<UserEntity, UserReadModel, UserWriteModel>
+  implements UserRepositoryPort
+{
+  constructor(
+    prisma: PrismaService,
+    mapper: UserMapper,
+    eventEmitter: EventEmitter2,
+    @Inject(USER_MESSAGE_PUBLISHER)
+    protected readonly messagePublisher: MessagePublisherPort,
+  ) {
+    super(
+      prisma.user,
+      prisma,
+      mapper,
+      eventEmitter,
+      new LoggerBase({
+        logger: new Logger(UserRepository.name),
+        domain: 'user',
+        messagePublisher,
+      }),
+    );
+  }
+}
--- a/src/modules/user/interface/dtos/user.paginated.response.dto.ts
+++ b/src/modules/user/interface/dtos/user.paginated.response.dto.ts
@ -0,0 +1,6 @@
+import { PaginatedResponseDto } from '@mobicoop/ddd-library';
+import { UserResponseDto } from './user.response.dto';
+
+export class UserPaginatedResponseDto extends PaginatedResponseDto<UserResponseDto> {
+  readonly data: readonly UserResponseDto[];
+}
--- a/src/modules/user/interface/dtos/user.response.dto.ts
+++ b/src/modules/user/interface/dtos/user.response.dto.ts
@ -0,0 +1,8 @@
+import { ResponseBase } from '@mobicoop/ddd-library';
+
+export class UserResponseDto extends ResponseBase {
+  firstName: string;
+  lastName: string;
+  email: string;
+  phone: string;
+}
--- a/src/modules/user/interface/grpc-controllers/create-user.grpc.controller.ts
+++ b/src/modules/user/interface/grpc-controllers/create-user.grpc.controller.ts
@ -0,0 +1,49 @@
+import { Controller, UsePipes } from '@nestjs/common';
+import { CommandBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { AggregateID } from '@mobicoop/ddd-library';
+import { IdResponse } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { RpcValidationPipe } from '@mobicoop/ddd-library';
+import { CreateUserRequestDto } from './dtos/create-user.request.dto';
+import { CreateUserCommand } from '@modules/user/core/application/commands/create-user/create-user.command';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+  UserAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: false,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class CreateUserGrpcController {
+  constructor(private readonly commandBus: CommandBus) {}
+
+  @GrpcMethod('UserService', 'Create')
+  async create(data: CreateUserRequestDto): Promise<IdResponse> {
+    try {
+      const aggregateID: AggregateID = await this.commandBus.execute(
+        new CreateUserCommand(data),
+      );
+      return new IdResponse(aggregateID);
+    } catch (error: any) {
+      if (
+        error instanceof UserAlreadyExistsException ||
+        error instanceof EmailAlreadyExistsException ||
+        error instanceof PhoneAlreadyExistsException
+      )
+        throw new RpcException({
+          code: RpcExceptionCode.ALREADY_EXISTS,
+          message: error.message,
+        });
+      throw new RpcException({
+        code: RpcExceptionCode.UNKNOWN,
+        message: error.message,
+      });
+    }
+  }
+}
--- a/src/modules/user/interface/grpc-controllers/delete-user.grpc.controller.ts
+++ b/src/modules/user/interface/grpc-controllers/delete-user.grpc.controller.ts
@ -0,0 +1,44 @@
+import {
+  DatabaseErrorException,
+  NotFoundException,
+  RpcExceptionCode,
+  RpcValidationPipe,
+} from '@mobicoop/ddd-library';
+import { Controller, UsePipes } from '@nestjs/common';
+import { CommandBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { DeleteUserRequestDto } from './dtos/delete-user.request.dto';
+import { DeleteUserCommand } from '@modules/user/core/application/commands/delete-user/delete-user.command';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: true,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class DeleteUserGrpcController {
+  constructor(private readonly commandBus: CommandBus) {}
+
+  @GrpcMethod('UserService', 'Delete')
+  async delete(data: DeleteUserRequestDto): Promise<void> {
+    try {
+      await this.commandBus.execute(new DeleteUserCommand(data));
+    } catch (error: any) {
+      if (error instanceof NotFoundException)
+        throw new RpcException({
+          code: RpcExceptionCode.NOT_FOUND,
+          message: error.message,
+        });
+      if (error instanceof DatabaseErrorException)
+        throw new RpcException({
+          code: RpcExceptionCode.INTERNAL,
+          message: error.message,
+        });
+      throw new RpcException({
+        code: RpcExceptionCode.UNKNOWN,
+        message: error.message,
+      });
+    }
+  }
+}
--- a/src/modules/user/interface/grpc-controllers/dtos/create-user.request.dto.ts
+++ b/src/modules/user/interface/grpc-controllers/dtos/create-user.request.dto.ts
@ -0,0 +1,19 @@
+import { IsEmail, IsOptional, IsPhoneNumber, IsString } from 'class-validator';
+
+export class CreateUserRequestDto {
+  @IsString()
+  @IsOptional()
+  firstName: string;
+
+  @IsString()
+  @IsOptional()
+  lastName: string;
+
+  @IsEmail()
+  @IsOptional()
+  email?: string;
+
+  @IsPhoneNumber()
+  @IsOptional()
+  phone?: string;
+}
--- a/src/modules/user/interface/grpc-controllers/dtos/delete-user.request.dto.ts
+++ b/src/modules/user/interface/grpc-controllers/dtos/delete-user.request.dto.ts
@ -1,7 +1,7 @@
 import { IsNotEmpty, IsString } from 'class-validator';

-export class FindUserByUuidRequest {
+export class DeleteUserRequestDto {
  @IsString()
  @IsNotEmpty()
-  uuid: string;
+  id: string;
 }
--- a/src/modules/user/interface/grpc-controllers/dtos/find-user-by-id.request.dto.ts
+++ b/src/modules/user/interface/grpc-controllers/dtos/find-user-by-id.request.dto.ts
@ -0,0 +1,7 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class FindUserByIdRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  id: string;
+}
--- a/src/modules/user/interface/grpc-controllers/dtos/update-user.request.dto.ts
+++ b/src/modules/user/interface/grpc-controllers/dtos/update-user.request.dto.ts
@ -1,29 +1,22 @@
-import { AutoMap } from '@automapper/classes';
 import { IsEmail, IsOptional, IsPhoneNumber, IsString } from 'class-validator';

-export class CreateUserRequest {
+export class UpdateUserRequestDto {
  @IsString()
-  @IsOptional()
-  @AutoMap()
-  uuid?: string;
+  id: string;

  @IsString()
  @IsOptional()
-  @AutoMap()
  firstName?: string;

  @IsString()
  @IsOptional()
-  @AutoMap()
  lastName?: string;

  @IsEmail()
  @IsOptional()
-  @AutoMap()
  email?: string;

  @IsPhoneNumber()
  @IsOptional()
-  @AutoMap()
  phone?: string;
 }
--- a/src/modules/user/interface/grpc-controllers/find-user-by-id.grpc.controller.ts
+++ b/src/modules/user/interface/grpc-controllers/find-user-by-id.grpc.controller.ts
@ -0,0 +1,46 @@
+import { Controller, UsePipes } from '@nestjs/common';
+import { QueryBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { NotFoundException } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { RpcValidationPipe } from '@mobicoop/ddd-library';
+import { UserMapper } from '@modules/user/user.mapper';
+import { FindUserByIdRequestDto } from './dtos/find-user-by-id.request.dto';
+import { UserResponseDto } from '../dtos/user.response.dto';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import { FindUserByIdQuery } from '@modules/user/core/application/queries/find-user-by-id/find-user-by-id.query';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: false,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class FindUserByIdGrpcController {
+  constructor(
+    protected readonly mapper: UserMapper,
+    private readonly queryBus: QueryBus,
+  ) {}
+
+  @GrpcMethod('UserService', 'FindOneById')
+  async findOnebyId(data: FindUserByIdRequestDto): Promise<UserResponseDto> {
+    try {
+      const user: UserEntity = await this.queryBus.execute(
+        new FindUserByIdQuery(data.id),
+      );
+      return this.mapper.toResponse(user);
+    } catch (e) {
+      if (e instanceof NotFoundException) {
+        throw new RpcException({
+          code: RpcExceptionCode.NOT_FOUND,
+          message: e.message,
+        });
+      }
+      throw new RpcException({
+        code: RpcExceptionCode.UNKNOWN,
+        message: e.message,
+      });
+    }
+  }
+}
--- a/src/modules/user/interface/grpc-controllers/update-user.grpc.controller.ts
+++ b/src/modules/user/interface/grpc-controllers/update-user.grpc.controller.ts
@ -0,0 +1,57 @@
+import {
+  AggregateID,
+  IdResponse,
+  RpcExceptionCode,
+  RpcValidationPipe,
+} from '@mobicoop/ddd-library';
+import { Controller, UsePipes } from '@nestjs/common';
+import { CommandBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { UpdateUserRequestDto } from './dtos/update-user.request.dto';
+import { UpdateUserCommand } from '@modules/user/core/application/commands/update-user/update-user.command';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+  UserAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: true,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class UpdateUserGrpcController {
+  constructor(private readonly commandBus: CommandBus) {}
+
+  @GrpcMethod('UserService', 'Update')
+  async updateUser(data: UpdateUserRequestDto): Promise<IdResponse> {
+    try {
+      const aggregateID: AggregateID = await this.commandBus.execute(
+        new UpdateUserCommand({
+          id: data.id,
+          firstName: data.firstName,
+          lastName: data.lastName,
+          email: data.email,
+          phone: data.phone,
+        }),
+      );
+      return new IdResponse(aggregateID);
+    } catch (error: any) {
+      if (
+        error instanceof UserAlreadyExistsException ||
+        error instanceof EmailAlreadyExistsException ||
+        error instanceof PhoneAlreadyExistsException
+      )
+        throw new RpcException({
+          code: RpcExceptionCode.ALREADY_EXISTS,
+          message: error.message,
+        });
+      throw new RpcException({
+        code: RpcExceptionCode.UNKNOWN,
+        message: error.message,
+      });
+    }
+  }
+}
--- a/src/modules/user/interface/grpc-controllers/user.proto
+++ b/src/modules/user/interface/grpc-controllers/user.proto
@ -2,20 +2,20 @@ syntax = "proto3";

 package user;

-service UsersService {
-  rpc FindOneByUuid(UserByUuid) returns (User);
+service UserService {
+  rpc FindOneById(UserById) returns (User);
  rpc FindAll(UserFilter) returns (Users);
-  rpc Create(User) returns (User);
-  rpc Update(User) returns (User);
-  rpc Delete(UserByUuid) returns (Empty);
+  rpc Create(User) returns (UserById);
+  rpc Update(User) returns (UserById);
+  rpc Delete(UserById) returns (Empty);
 }

-message UserByUuid {
-  string uuid = 1;
+message UserById {
+  string id = 1;
 }

 message User {
-  string uuid = 1;
+  string id = 1;
  string firstName = 2;
  string lastName = 3;
  string email = 4;
--- a/src/modules/user/mappers/user.profile.ts
+++ b/src/modules/user/mappers/user.profile.ts
@ -1,29 +0,0 @@
-import { createMap, forMember, ignore, Mapper } from '@automapper/core';
-import { AutomapperProfile, InjectMapper } from '@automapper/nestjs';
-import { Injectable } from '@nestjs/common';
-import { UserPresenter } from '../adapters/primaries/user.presenter';
-import { CreateUserRequest } from '../domain/dtos/create-user.request';
-import { UpdateUserRequest } from '../domain/dtos/update-user.request';
-import { User } from '../domain/entities/user';
-
-@Injectable()
-export class UserProfile extends AutomapperProfile {
-  constructor(@InjectMapper() mapper: Mapper) {
-    super(mapper);
-  }
-
-  override get profile() {
-    return (mapper) => {
-      createMap(mapper, User, UserPresenter);
-
-      createMap(mapper, CreateUserRequest, User);
-
-      createMap(
-        mapper,
-        UpdateUserRequest,
-        User,
-        forMember((dest) => dest.uuid, ignore()),
-      );
-    };
-  }
-}
--- a/src/modules/user/queries/find-all-users.query.ts
+++ b/src/modules/user/queries/find-all-users.query.ts
@ -1,11 +0,0 @@
-import { FindAllUsersRequest } from '../domain/dtos/find-all-users.request';
-
-export class FindAllUsersQuery {
-  page: number;
-  perPage: number;
-
-  constructor(findAllUsersRequest?: FindAllUsersRequest) {
-    this.page = findAllUsersRequest?.page ?? 1;
-    this.perPage = findAllUsersRequest?.perPage ?? 10;
-  }
-}
--- a/src/modules/user/queries/find-user-by-uuid.query.ts
+++ b/src/modules/user/queries/find-user-by-uuid.query.ts
@ -1,9 +0,0 @@
-import { FindUserByUuidRequest } from '../domain/dtos/find-user-by-uuid.request';
-
-export class FindUserByUuidQuery {
-  readonly uuid: string;
-
-  constructor(findUserByUuidRequest: FindUserByUuidRequest) {
-    this.uuid = findUserByUuidRequest.uuid;
-  }
-}
--- a/src/modules/user/tests/integration/user.repository.spec.ts
+++ b/src/modules/user/tests/integration/user.repository.spec.ts
@ -0,0 +1,120 @@
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import { CreateUserProps } from '@modules/user/core/domain/user.types';
+import { PrismaService } from '@modules/user/infrastructure/prisma.service';
+import { UserRepository } from '@modules/user/infrastructure/user.repository';
+import {
+  USER_MESSAGE_PUBLISHER,
+  USER_REPOSITORY,
+} from '@modules/user/user.di-tokens';
+import { UserMapper } from '@modules/user/user.mapper';
+import { ConfigModule } from '@nestjs/config';
+import { EventEmitterModule } from '@nestjs/event-emitter';
+import { Test } from '@nestjs/testing';
+
+describe('User Repository', () => {
+  let prismaService: PrismaService;
+  let userRepository: UserRepository;
+
+  const executeInsertCommand = async (table: string, object: any) => {
+    const command = `INSERT INTO "${table}" ("${Object.keys(object).join(
+      '","',
+    )}") VALUES ('${Object.values(object).join("','")}')`;
+    await prismaService.$executeRawUnsafe(command);
+  };
+  const getSeed = (index: number, uuid: string): string => {
+    return `${uuid.slice(0, -2)}${index.toString(16).padStart(2, '0')}`;
+  };
+
+  const baseUuid = {
+    uuid: 'be459a29-7a41-4c0b-b371-abe90bfb6f00',
+  };
+
+  const createUsers = async (nbToCreate = 10) => {
+    for (let i = 0; i < nbToCreate; i++) {
+      const userToCreate = {
+        uuid: getSeed(i, baseUuid.uuid),
+        firstName: `John${i}`,
+        lastName: `Doe${i}`,
+        email: `john.doe${i}@email.com`,
+        phone: `+33611223344${i}`,
+        createdAt: '2023-07-24 13:07:05.000',
+        updatedAt: '2023-07-24 13:07:05.000',
+      };
+      userToCreate.uuid = getSeed(i, baseUuid.uuid);
+      await executeInsertCommand('user', userToCreate);
+    }
+  };
+
+  const mockMessagePublisher = {
+    publish: jest.fn().mockImplementation(),
+  };
+
+  const mockLogger = {
+    log: jest.fn(),
+    warn: jest.fn(),
+    error: jest.fn(),
+  };
+
+  beforeAll(async () => {
+    const module = await Test.createTestingModule({
+      imports: [
+        EventEmitterModule.forRoot(),
+        ConfigModule.forRoot({ isGlobal: true }),
+      ],
+      providers: [
+        PrismaService,
+        UserMapper,
+        {
+          provide: USER_REPOSITORY,
+          useClass: UserRepository,
+        },
+        {
+          provide: USER_MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+      ],
+    })
+      // disable logging
+      .setLogger(mockLogger)
+      .compile();
+
+    prismaService = module.get<PrismaService>(PrismaService);
+    userRepository = module.get<UserRepository>(USER_REPOSITORY);
+  });
+
+  afterAll(async () => {
+    await prismaService.$disconnect();
+  });
+
+  beforeEach(async () => {
+    await prismaService.user.deleteMany();
+  });
+
+  describe('findOneById', () => {
+    it('should return a user', async () => {
+      await createUsers(1);
+      const result = await userRepository.findOneById(baseUuid.uuid);
+      expect(result.id).toBe(baseUuid.uuid);
+    });
+  });
+
+  describe('create', () => {
+    it('should create a user', async () => {
+      const beforeCount = await prismaService.user.count();
+
+      const createUserProps: CreateUserProps = {
+        firstName: 'Jane',
+        lastName: 'Doe',
+        email: 'jane.doe@email.com',
+        phone: '+33622334455',
+      };
+
+      const userToCreate: UserEntity = UserEntity.create(createUserProps);
+      await userRepository.insert(userToCreate);
+
+      const afterCount = await prismaService.user.count();
+
+      expect(afterCount - beforeCount).toBe(1);
+    });
+  });
+});
--- a/src/modules/user/tests/integration/users.repository.spec.ts
+++ b/src/modules/user/tests/integration/users.repository.spec.ts
@ -1,174 +0,0 @@
-import { TestingModule, Test } from '@nestjs/testing';
-import { DatabaseModule } from '../../../database/database.module';
-import { PrismaService } from '../../../database/adapters/secondaries/prisma-service';
-import { DatabaseException } from '../../../database/exceptions/database.exception';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { User } from '../../domain/entities/user';
-
-describe('UsersRepository', () => {
-  let prismaService: PrismaService;
-  let usersRepository: UsersRepository;
-
-  const createUsers = async (nbToCreate = 10) => {
-    for (let i = 0; i < nbToCreate; i++) {
-      await prismaService.user.create({
-        data: {
-          firstName: `firstName-${i}`,
-        },
-      });
-    }
-  };
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [DatabaseModule],
-      providers: [UsersRepository, PrismaService],
-    }).compile();
-
-    prismaService = module.get<PrismaService>(PrismaService);
-    usersRepository = module.get<UsersRepository>(UsersRepository);
-  });
-
-  afterAll(async () => {
-    await prismaService.$disconnect();
-  });
-
-  beforeEach(async () => {
-    await prismaService.user.deleteMany();
-  });
-
-  describe('findAll', () => {
-    it('should return an empty data array', async () => {
-      const res = await usersRepository.findAll();
-      expect(res).toEqual({
-        data: [],
-        total: 0,
-      });
-    });
-
-    it('should return a data array with 8 users', async () => {
-      await createUsers(8);
-      const users = await usersRepository.findAll();
-      expect(users.data.length).toBe(8);
-      expect(users.total).toBe(8);
-    });
-
-    it('should return a data array limited to 10 users', async () => {
-      await createUsers(20);
-      const users = await usersRepository.findAll();
-      expect(users.data.length).toBe(10);
-      expect(users.total).toBe(20);
-    });
-  });
-
-  describe('findOneByUuid', () => {
-    it('should return a user', async () => {
-      const userToFind = await prismaService.user.create({
-        data: {
-          firstName: 'test',
-        },
-      });
-
-      const user = await usersRepository.findOneByUuid(userToFind.uuid);
-      expect(user.uuid).toBe(userToFind.uuid);
-    });
-
-    it('should return null', async () => {
-      const user = await usersRepository.findOneByUuid(
-        '544572be-11fb-4244-8235-587221fc9104',
-      );
-      expect(user).toBeNull();
-    });
-  });
-
-  describe('findOne', () => {
-    it('should return a user according to its email', async () => {
-      const userToFind = await prismaService.user.create({
-        data: {
-          email: 'test@test.com',
-        },
-      });
-
-      const user = await usersRepository.findOne({
-        email: 'test@test.com',
-      });
-
-      expect(user.uuid).toBe(userToFind.uuid);
-    });
-
-    it('should return null with unknown email', async () => {
-      const user = await usersRepository.findOne({
-        email: 'wrong@email.com',
-      });
-      expect(user).toBeNull();
-    });
-  });
-
-  describe('create', () => {
-    it('should create a user', async () => {
-      const beforeCount = await prismaService.user.count();
-
-      const userToCreate: User = new User();
-      userToCreate.firstName = 'test';
-      const user = await usersRepository.create(userToCreate);
-
-      const afterCount = await prismaService.user.count();
-
-      expect(afterCount - beforeCount).toBe(1);
-      expect(user.uuid).toBeDefined();
-    });
-  });
-
-  describe('update', () => {
-    it('should update user firstName', async () => {
-      const userToUpdate = await prismaService.user.create({
-        data: {
-          firstName: 'test',
-        },
-      });
-
-      const toUpdate: User = new User();
-      toUpdate.firstName = 'updated';
-      const updateduser = await usersRepository.update(
-        userToUpdate.uuid,
-        toUpdate,
-      );
-
-      expect(updateduser.uuid).toBe(userToUpdate.uuid);
-      expect(updateduser.firstName).toBe('updated');
-    });
-
-    it('should throw DatabaseException', async () => {
-      const toUpdate: User = new User();
-      toUpdate.firstName = 'updated';
-
-      await expect(
-        usersRepository.update(
-          '544572be-11fb-4244-8235-587221fc9104',
-          toUpdate,
-        ),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-
-  describe('delete', () => {
-    it('should delete a user', async () => {
-      const userToRemove = await prismaService.user.create({
-        data: {
-          firstName: 'test',
-        },
-      });
-
-      await usersRepository.delete(userToRemove.uuid);
-
-      const count = await prismaService.user.count();
-      expect(count).toBe(0);
-    });
-
-    it('should throw DatabaseException', async () => {
-      await expect(
-        usersRepository.delete('544572be-11fb-4244-8235-587221fc9104'),
-      ).rejects.toBeInstanceOf(DatabaseException);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/core/create-user.service.spec.ts
+++ b/src/modules/user/tests/unit/core/create-user.service.spec.ts
@ -0,0 +1,105 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { AggregateID, UniqueConstraintException } from '@mobicoop/ddd-library';
+import { ConflictException } from '@mobicoop/ddd-library';
+import { CreateUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/create-user.request.dto';
+import { CreateUserService } from '@modules/user/core/application/commands/create-user/create-user.service';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import { CreateUserCommand } from '@modules/user/core/application/commands/create-user/create-user.command';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+  UserAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+
+const createUserRequest: CreateUserRequestDto = {
+  firstName: 'John',
+  lastName: 'Doe',
+  email: 'john.doe@email.com',
+  phone: '+33611223344',
+};
+
+const mockUserRepository = {
+  insert: jest
+    .fn()
+    .mockImplementationOnce(() => ({}))
+    .mockImplementationOnce(() => {
+      throw new Error();
+    })
+    .mockImplementationOnce(() => {
+      throw new ConflictException('User already exists');
+    })
+    .mockImplementationOnce(() => {
+      throw new UniqueConstraintException('email already exists');
+    })
+    .mockImplementationOnce(() => {
+      throw new UniqueConstraintException('phone already exists');
+    }),
+};
+
+describe('create-user.service', () => {
+  let createUserService: CreateUserService;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_REPOSITORY,
+          useValue: mockUserRepository,
+        },
+        CreateUserService,
+      ],
+    }).compile();
+
+    createUserService = module.get<CreateUserService>(CreateUserService);
+  });
+
+  it('should be defined', () => {
+    expect(createUserService).toBeDefined();
+  });
+
+  describe('execution', () => {
+    const createUserCommand = new CreateUserCommand(createUserRequest);
+    it('should create a new user', async () => {
+      UserEntity.create = jest.fn().mockReturnValue({
+        id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
+      });
+      const result: AggregateID = await createUserService.execute(
+        createUserCommand,
+      );
+      expect(result).toBe('047a6ecf-23d4-4d3e-877c-3225d560a8da');
+    });
+    it('should throw an error if something bad happens', async () => {
+      UserEntity.create = jest.fn().mockReturnValue({
+        id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
+      });
+      await expect(
+        createUserService.execute(createUserCommand),
+      ).rejects.toBeInstanceOf(Error);
+    });
+    it('should throw an exception if User already exists', async () => {
+      UserEntity.create = jest.fn().mockReturnValue({
+        id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
+      });
+      await expect(
+        createUserService.execute(createUserCommand),
+      ).rejects.toBeInstanceOf(UserAlreadyExistsException);
+    });
+    it('should throw an exception if Email already exists', async () => {
+      UserEntity.create = jest.fn().mockReturnValue({
+        id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
+      });
+      await expect(
+        createUserService.execute(createUserCommand),
+      ).rejects.toBeInstanceOf(EmailAlreadyExistsException);
+    });
+    it('should throw an exception if Phone already exists', async () => {
+      UserEntity.create = jest.fn().mockReturnValue({
+        id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
+      });
+      await expect(
+        createUserService.execute(createUserCommand),
+      ).rejects.toBeInstanceOf(PhoneAlreadyExistsException);
+    });
+  });
+});
--- a/src/modules/user/tests/unit/core/delete-user.service.spec.ts
+++ b/src/modules/user/tests/unit/core/delete-user.service.spec.ts
@ -0,0 +1,50 @@
+import { DeleteUserCommand } from '@modules/user/core/application/commands/delete-user/delete-user.command';
+import { DeleteUserService } from '@modules/user/core/application/commands/delete-user/delete-user.service';
+import { DeleteUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/delete-user.request.dto';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const deleteUserRequest: DeleteUserRequestDto = {
+  id: '165192d4-398a-4469-a16b-98c02cc6f531',
+};
+
+const mockUserEntity = {
+  delete: jest.fn(),
+};
+
+const mockUserRepository = {
+  findOneById: jest.fn().mockImplementation(() => mockUserEntity),
+  delete: jest.fn().mockImplementationOnce(() => true),
+};
+
+describe('Delete User Service', () => {
+  let deleteUserService: DeleteUserService;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_REPOSITORY,
+          useValue: mockUserRepository,
+        },
+        DeleteUserService,
+      ],
+    }).compile();
+
+    deleteUserService = module.get<DeleteUserService>(DeleteUserService);
+  });
+
+  it('should be defined', () => {
+    expect(deleteUserService).toBeDefined();
+  });
+
+  describe('execution', () => {
+    const deleteUserCommand = new DeleteUserCommand(deleteUserRequest);
+    it('should delete a user', async () => {
+      const result: boolean = await deleteUserService.execute(
+        deleteUserCommand,
+      );
+      expect(result).toBeTruthy();
+    });
+  });
+});
--- a/src/modules/user/tests/unit/core/find-user-by-id.query-handler.spec.ts
+++ b/src/modules/user/tests/unit/core/find-user-by-id.query-handler.spec.ts
@ -0,0 +1,58 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import { FindUserByIdQueryHandler } from '@modules/user/core/application/queries/find-user-by-id/find-user-by-id.query-handler';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { FindUserByIdQuery } from '@modules/user/core/application/queries/find-user-by-id/find-user-by-id.query';
+
+const now = new Date('2023-06-21 06:00:00');
+const user: UserEntity = new UserEntity({
+  id: 'c160cf8c-f057-4962-841f-3ad68346df44',
+  props: {
+    firstName: 'John',
+    lastName: 'Doe',
+    email: 'john.doe@email.com',
+    phone: '+33611223344',
+  },
+  createdAt: now,
+  updatedAt: now,
+});
+
+const mockUserRepository = {
+  findOneById: jest.fn().mockImplementation(() => user),
+};
+
+describe('find-user-by-id.query-handler', () => {
+  let findUserByIdQueryHandler: FindUserByIdQueryHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_REPOSITORY,
+          useValue: mockUserRepository,
+        },
+        FindUserByIdQueryHandler,
+      ],
+    }).compile();
+
+    findUserByIdQueryHandler = module.get<FindUserByIdQueryHandler>(
+      FindUserByIdQueryHandler,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(findUserByIdQueryHandler).toBeDefined();
+  });
+
+  describe('execution', () => {
+    it('should return a user', async () => {
+      const findUserbyIdQuery = new FindUserByIdQuery(
+        'dd264806-13b4-4226-9b18-87adf0ad5dd1',
+      );
+      const user: UserEntity = await findUserByIdQueryHandler.execute(
+        findUserbyIdQuery,
+      );
+      expect(user.getProps().lastName).toBe('Doe');
+    });
+  });
+});
--- a/src/modules/user/tests/unit/core/publish-message-when-user-is-created.domain-event-handler.spec.ts
+++ b/src/modules/user/tests/unit/core/publish-message-when-user-is-created.domain-event-handler.spec.ts
@ -0,0 +1,54 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { PublishMessageWhenUserIsCreatedDomainEventHandler } from '@modules/user/core/application/event-handlers/publish-message-when-user-is-created.domain-event-handler';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { UserCreatedDomainEvent } from '@modules/user/core/domain/events/user-created.domain-event';
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+describe('Publish message when user is created domain event handler', () => {
+  let publishMessageWhenUserIsCreatedDomainEventHandler: PublishMessageWhenUserIsCreatedDomainEventHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+        PublishMessageWhenUserIsCreatedDomainEventHandler,
+      ],
+    }).compile();
+
+    publishMessageWhenUserIsCreatedDomainEventHandler =
+      module.get<PublishMessageWhenUserIsCreatedDomainEventHandler>(
+        PublishMessageWhenUserIsCreatedDomainEventHandler,
+      );
+  });
+
+  it('should publish a message', () => {
+    jest.spyOn(mockMessagePublisher, 'publish');
+    const userCreatedDomainEvent: UserCreatedDomainEvent = {
+      id: 'some-domain-event-id',
+      aggregateId: 'some-aggregate-id',
+      firstName: 'John',
+      lastName: 'Doe',
+      email: 'john.doe@email.com',
+      phone: '+33611223344',
+      metadata: {
+        timestamp: new Date('2023-06-28T05:00:00Z').getTime(),
+        correlationId: 'some-correlation-id',
+      },
+    };
+    publishMessageWhenUserIsCreatedDomainEventHandler.handle(
+      userCreatedDomainEvent,
+    );
+    expect(publishMessageWhenUserIsCreatedDomainEventHandler).toBeDefined();
+    expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
+    expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
+      'user.created',
+      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"firstName":"John","lastName":"Doe","email":"john.doe@email.com","phone":"+33611223344"}',
+    );
+  });
+});
--- a/src/modules/user/tests/unit/core/publish-message-when-user-is-deleted.domain-event-handler.spec.ts
+++ b/src/modules/user/tests/unit/core/publish-message-when-user-is-deleted.domain-event-handler.spec.ts
@ -0,0 +1,54 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { UserCreatedDomainEvent } from '@modules/user/core/domain/events/user-created.domain-event';
+import { PublishMessageWhenUserIsDeletedDomainEventHandler } from '@modules/user/core/application/event-handlers/publish-message-when-user-is-deleted.domain-event-handler';
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+describe('Publish message when user is deleted domain event handler', () => {
+  let publishMessageWhenUserIsDeletedDomainEventHandler: PublishMessageWhenUserIsDeletedDomainEventHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+        PublishMessageWhenUserIsDeletedDomainEventHandler,
+      ],
+    }).compile();
+
+    publishMessageWhenUserIsDeletedDomainEventHandler =
+      module.get<PublishMessageWhenUserIsDeletedDomainEventHandler>(
+        PublishMessageWhenUserIsDeletedDomainEventHandler,
+      );
+  });
+
+  it('should publish a message', () => {
+    jest.spyOn(mockMessagePublisher, 'publish');
+    const userDeletedDomainEvent: UserCreatedDomainEvent = {
+      id: 'some-domain-event-id',
+      aggregateId: 'some-aggregate-id',
+      firstName: 'John',
+      lastName: 'Doe',
+      email: 'john.doe@email.com',
+      phone: '+33611223344',
+      metadata: {
+        timestamp: new Date('2023-06-28T05:00:00Z').getTime(),
+        correlationId: 'some-correlation-id',
+      },
+    };
+    publishMessageWhenUserIsDeletedDomainEventHandler.handle(
+      userDeletedDomainEvent,
+    );
+    expect(publishMessageWhenUserIsDeletedDomainEventHandler).toBeDefined();
+    expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
+    expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
+      'user.deleted',
+      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000}}',
+    );
+  });
+});
--- a/src/modules/user/tests/unit/core/publish-message-when-user-is-updated.domain-event-handler.spec.ts
+++ b/src/modules/user/tests/unit/core/publish-message-when-user-is-updated.domain-event-handler.spec.ts
@ -0,0 +1,54 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { USER_MESSAGE_PUBLISHER } from '@modules/user/user.di-tokens';
+import { PublishMessageWhenUserIsUpdatedDomainEventHandler } from '@modules/user/core/application/event-handlers/publish-message-when-user-is-updated.domain-event-handler';
+import { UserUpdatedDomainEvent } from '@modules/user/core/domain/events/user-updated.domain-event';
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+describe('Publish message when user is updated domain event handler', () => {
+  let publishMessageWhenUserIsUpdatedDomainEventHandler: PublishMessageWhenUserIsUpdatedDomainEventHandler;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+        PublishMessageWhenUserIsUpdatedDomainEventHandler,
+      ],
+    }).compile();
+
+    publishMessageWhenUserIsUpdatedDomainEventHandler =
+      module.get<PublishMessageWhenUserIsUpdatedDomainEventHandler>(
+        PublishMessageWhenUserIsUpdatedDomainEventHandler,
+      );
+  });
+
+  it('should publish a message', () => {
+    jest.spyOn(mockMessagePublisher, 'publish');
+    const userUpdatedDomainEvent: UserUpdatedDomainEvent = {
+      id: 'some-domain-event-id',
+      aggregateId: 'some-aggregate-id',
+      firstName: 'Jane',
+      lastName: 'Doe',
+      email: 'jane.doe@email.com',
+      phone: '+33611223344',
+      metadata: {
+        timestamp: new Date('2023-06-28T05:00:00Z').getTime(),
+        correlationId: 'some-correlation-id',
+      },
+    };
+    publishMessageWhenUserIsUpdatedDomainEventHandler.handle(
+      userUpdatedDomainEvent,
+    );
+    expect(publishMessageWhenUserIsUpdatedDomainEventHandler).toBeDefined();
+    expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
+    expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
+      'user.updated',
+      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"firstName":"Jane","lastName":"Doe","email":"jane.doe@email.com","phone":"+33611223344"}',
+    );
+  });
+});
--- a/src/modules/user/tests/unit/core/update-user.service.spec.ts
+++ b/src/modules/user/tests/unit/core/update-user.service.spec.ts
@ -0,0 +1,126 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import {
+  AggregateID,
+  NotFoundException,
+  UniqueConstraintException,
+} from '@mobicoop/ddd-library';
+import { USER_REPOSITORY } from '@modules/user/user.di-tokens';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+import { UpdateUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/update-user.request.dto';
+import { UpdateUserService } from '@modules/user/core/application/commands/update-user/update-user.service';
+import { UpdateUserCommand } from '@modules/user/core/application/commands/update-user/update-user.command';
+
+const updateFirstNameUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  firstName: 'Johnny',
+};
+
+const updateEmailUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  email: 'john.doe@already.exists.email.com',
+};
+
+const updatePhoneUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  phone: '+33611223344',
+};
+
+const now = new Date();
+const userToUpdate: UserEntity = new UserEntity({
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  createdAt: now,
+  updatedAt: now,
+  props: {
+    firstName: 'John',
+    lastName: 'Doe',
+    email: 'john.doe@email.com',
+    phone: '+33611223344',
+  },
+});
+
+const mockUserRepository = {
+  findOneById: jest
+    .fn()
+    .mockImplementationOnce(() => {
+      throw new NotFoundException('Record not found');
+    })
+    .mockImplementation(() => userToUpdate),
+  update: jest
+    .fn()
+    .mockImplementationOnce(() => 'c97b1783-76cf-4840-b298-b90b13c58894')
+    .mockImplementationOnce(() => {
+      throw new UniqueConstraintException('email already exists');
+    })
+    .mockImplementationOnce(() => {
+      throw new UniqueConstraintException('phone already exists');
+    })
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+describe('update-user.service', () => {
+  let updateUserService: UpdateUserService;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: USER_REPOSITORY,
+          useValue: mockUserRepository,
+        },
+        UpdateUserService,
+      ],
+    }).compile();
+
+    updateUserService = module.get<UpdateUserService>(UpdateUserService);
+  });
+
+  it('should be defined', () => {
+    expect(updateUserService).toBeDefined();
+  });
+
+  describe('execution', () => {
+    it('should throw an exception if user is not found', async () => {
+      const updateUserCommand = new UpdateUserCommand(
+        updateFirstNameUserRequest,
+      );
+      await expect(
+        updateUserService.execute(updateUserCommand),
+      ).rejects.toBeInstanceOf(NotFoundException);
+    });
+    it('should update a user firstName', async () => {
+      jest.spyOn(userToUpdate, 'update');
+      const updateUserCommand = new UpdateUserCommand(
+        updateFirstNameUserRequest,
+      );
+      const result: AggregateID = await updateUserService.execute(
+        updateUserCommand,
+      );
+      expect(result).toBe('c97b1783-76cf-4840-b298-b90b13c58894');
+      expect(userToUpdate.update).toHaveBeenCalledTimes(1);
+    });
+    it('should throw an exception if Email already exists', async () => {
+      const updateUserCommand = new UpdateUserCommand(updateEmailUserRequest);
+      await expect(
+        updateUserService.execute(updateUserCommand),
+      ).rejects.toBeInstanceOf(EmailAlreadyExistsException);
+    });
+    it('should throw an exception if Phone already exists', async () => {
+      const updateUserCommand = new UpdateUserCommand(updatePhoneUserRequest);
+      await expect(
+        updateUserService.execute(updateUserCommand),
+      ).rejects.toBeInstanceOf(PhoneAlreadyExistsException);
+    });
+    it('should throw an error if something bad happens', async () => {
+      const updateUserCommand = new UpdateUserCommand(updatePhoneUserRequest);
+      await expect(
+        updateUserService.execute(updateUserCommand),
+      ).rejects.toBeInstanceOf(Error);
+    });
+  });
+});
--- a/src/modules/user/tests/unit/core/user.entity.spec.ts
+++ b/src/modules/user/tests/unit/core/user.entity.spec.ts
@ -0,0 +1,54 @@
+import { UserCreatedDomainEvent } from '@modules/user/core/domain/events/user-created.domain-event';
+import { UserDeletedDomainEvent } from '@modules/user/core/domain/events/user-deleted.domain-event';
+import { UserUpdatedDomainEvent } from '@modules/user/core/domain/events/user-updated.domain-event';
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import {
+  CreateUserProps,
+  UpdateUserProps,
+} from '@modules/user/core/domain/user.types';
+
+const createUserProps: CreateUserProps = {
+  firstName: 'John',
+  lastName: 'Doe',
+  email: 'john.doe@email.com',
+  phone: '+33611223344',
+};
+
+const updateUserProps: UpdateUserProps = {
+  firstName: 'Jane',
+  lastName: 'Dane',
+  email: 'jane.dane@email.com',
+};
+
+describe('User entity create', () => {
+  it('should create a new user entity', async () => {
+    const userEntity: UserEntity = UserEntity.create(createUserProps);
+    expect(userEntity.id.length).toBe(36);
+    expect(userEntity.getProps().email).toBe('john.doe@email.com');
+    expect(userEntity.domainEvents.length).toBe(1);
+    expect(userEntity.domainEvents[0]).toBeInstanceOf(UserCreatedDomainEvent);
+  });
+});
+
+describe('User entity update', () => {
+  it('should update a user entity', async () => {
+    const userEntity: UserEntity = UserEntity.create(createUserProps);
+    userEntity.update(updateUserProps);
+    expect(userEntity.getProps().firstName).toBe('Jane');
+    expect(userEntity.getProps().lastName).toBe('Dane');
+    expect(userEntity.getProps().email).toBe('jane.dane@email.com');
+    // 2 events because UserEntity.create sends a UserCreatedDomainEvent
+    expect(userEntity.domainEvents.length).toBe(2);
+    expect(userEntity.domainEvents[1]).toBeInstanceOf(UserUpdatedDomainEvent);
+  });
+});
+
+describe('User entity delete', () => {
+  it('should delete a user entity', async () => {
+    const userEntity: UserEntity = UserEntity.create(createUserProps);
+    userEntity.delete();
+    // 2 events because UserEntity.create sends a UserCreatedDomainEvent
+    expect(userEntity.domainEvents.length).toBe(2);
+    expect(userEntity.domainEvents[1]).toBeInstanceOf(UserDeletedDomainEvent);
+  });
+});
--- a/src/modules/user/tests/unit/create-user.usecase.spec.ts
+++ b/src/modules/user/tests/unit/create-user.usecase.spec.ts
@ -1,79 +0,0 @@
-import { classes } from '@automapper/classes';
-import { AutomapperModule } from '@automapper/nestjs';
-import { Test, TestingModule } from '@nestjs/testing';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { CreateUserCommand } from '../../commands/create-user.command';
-import { CreateUserRequest } from '../../domain/dtos/create-user.request';
-import { User } from '../../domain/entities/user';
-import { CreateUserUseCase } from '../../domain/usecases/create-user.usecase';
-import { UserProfile } from '../../mappers/user.profile';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-
-const newUserRequest: CreateUserRequest = {
-  firstName: 'John',
-  lastName: 'Doe',
-  email: 'john.doe@email.com',
-  phone: '0601020304',
-};
-const newUserCommand: CreateUserCommand = new CreateUserCommand(newUserRequest);
-
-const mockUsersRepository = {
-  create: jest
-    .fn()
-    .mockImplementationOnce(() => {
-      return Promise.resolve({
-        ...newUserRequest,
-        uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
-      });
-    })
-    .mockImplementation(() => {
-      throw new Error('Already exists');
-    }),
-};
-
-const mockMessagePublisher = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('CreateUserUseCase', () => {
-  let createUserUseCase: CreateUserUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUsersRepository,
-        },
-        CreateUserUseCase,
-        UserProfile,
-        {
-          provide: MESSAGE_PUBLISHER,
-          useValue: mockMessagePublisher,
-        },
-      ],
-    }).compile();
-
-    createUserUseCase = module.get<CreateUserUseCase>(CreateUserUseCase);
-  });
-
-  it('should be defined', () => {
-    expect(createUserUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should create and return a new user', async () => {
-      const newUser: User = await createUserUseCase.execute(newUserCommand);
-
-      expect(newUser.lastName).toBe(newUserRequest.lastName);
-      expect(newUser.uuid).toBeDefined();
-    });
-
-    it('should throw an error if user already exists', async () => {
-      await expect(
-        createUserUseCase.execute(newUserCommand),
-      ).rejects.toBeInstanceOf(Error);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/delete-user.usecase.spec.ts
+++ b/src/modules/user/tests/unit/delete-user.usecase.spec.ts
@ -1,93 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { DeleteUserCommand } from '../../commands/delete-user.command';
-import { DeleteUserUseCase } from '../../domain/usecases/delete-user.usecase';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-
-const mockUsers = [
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
-    firstName: 'John',
-    lastName: 'Doe',
-    email: 'john.doe@email.com',
-    phone: '0601020304',
-  },
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a92',
-    firstName: 'Jane',
-    lastName: 'Doe',
-    email: 'jane.doe@email.com',
-    phone: '0602030405',
-  },
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a93',
-    firstName: 'Jimmy',
-    lastName: 'Doe',
-    email: 'jimmy.doe@email.com',
-    phone: '0603040506',
-  },
-];
-
-const mockUsersRepository = {
-  delete: jest
-    .fn()
-    .mockImplementationOnce((uuid: string) => {
-      let savedUser = {};
-      mockUsers.forEach((user, index) => {
-        if (user.uuid === uuid) {
-          savedUser = { ...user };
-          mockUsers.splice(index, 1);
-        }
-      });
-      return savedUser;
-    })
-    .mockImplementation(() => {
-      throw new Error('Error');
-    }),
-};
-
-const mockMessagePublisher = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('DeleteUserUseCase', () => {
-  let deleteUserUseCase: DeleteUserUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUsersRepository,
-        },
-        DeleteUserUseCase,
-        {
-          provide: MESSAGE_PUBLISHER,
-          useValue: mockMessagePublisher,
-        },
-      ],
-    }).compile();
-
-    deleteUserUseCase = module.get<DeleteUserUseCase>(DeleteUserUseCase);
-  });
-
-  it('should be defined', () => {
-    expect(deleteUserUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should delete a user', async () => {
-      const savedUuid = mockUsers[0].uuid;
-      const deleteUserCommand = new DeleteUserCommand(savedUuid);
-      await deleteUserUseCase.execute(deleteUserCommand);
-
-      const deletedUser = mockUsers.find((user) => user.uuid === savedUuid);
-      expect(deletedUser).toBeUndefined();
-    });
-    it('should throw an error if user does not exist', async () => {
-      await expect(
-        deleteUserUseCase.execute(new DeleteUserCommand('wrong uuid')),
-      ).rejects.toBeInstanceOf(Error);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/find-all-users.usecase.spec.ts
+++ b/src/modules/user/tests/unit/find-all-users.usecase.spec.ts
@ -1,74 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { FindAllUsersRequest } from '../../domain/dtos/find-all-users.request';
-import { FindAllUsersUseCase } from '../../domain/usecases/find-all-users.usecase';
-import { FindAllUsersQuery } from '../../queries/find-all-users.query';
-
-const findAllUsersRequest: FindAllUsersRequest = new FindAllUsersRequest();
-findAllUsersRequest.page = 1;
-findAllUsersRequest.perPage = 10;
-
-const findAllUsersQuery: FindAllUsersQuery = new FindAllUsersQuery(
-  findAllUsersRequest,
-);
-
-const mockUsers = [
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
-    firstName: 'John',
-    lastName: 'Doe',
-    email: 'john.doe@email.com',
-    phone: '0601020304',
-  },
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a92',
-    firstName: 'Jane',
-    lastName: 'Doe',
-    email: 'jane.doe@email.com',
-    phone: '0602030405',
-  },
-  {
-    uuid: 'bb281075-1b98-4456-89d6-c643d3044a93',
-    firstName: 'Jimmy',
-    lastName: 'Doe',
-    email: 'jimmy.doe@email.com',
-    phone: '0603040506',
-  },
-];
-
-const mockUsersRepository = {
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  findAll: jest.fn().mockImplementation((query?: FindAllUsersQuery) => {
-    return Promise.resolve(mockUsers);
-  }),
-};
-
-describe('FindAllUsersUseCase', () => {
-  let findAllUsersUseCase: FindAllUsersUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUsersRepository,
-        },
-        FindAllUsersUseCase,
-      ],
-    }).compile();
-
-    findAllUsersUseCase = module.get<FindAllUsersUseCase>(FindAllUsersUseCase);
-  });
-
-  it('should be defined', () => {
-    expect(findAllUsersUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should return an array filled with users', async () => {
-      const users = await findAllUsersUseCase.execute(findAllUsersQuery);
-
-      expect(users).toBe(mockUsers);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/find-user-by-uuid.usecase.spec.ts
+++ b/src/modules/user/tests/unit/find-user-by-uuid.usecase.spec.ts
@ -1,82 +0,0 @@
-import { NotFoundException } from '@nestjs/common';
-import { Test, TestingModule } from '@nestjs/testing';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { FindUserByUuidRequest } from '../../domain/dtos/find-user-by-uuid.request';
-import { FindUserByUuidUseCase } from '../../domain/usecases/find-user-by-uuid.usecase';
-import { FindUserByUuidQuery } from '../../queries/find-user-by-uuid.query';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-
-const mockUser = {
-  uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
-  firstName: 'John',
-  lastName: 'Doe',
-  email: 'john.doe@email.com',
-  phone: '0601020304',
-};
-
-const mockUserRepository = {
-  findOneByUuid: jest
-    .fn()
-    // eslint-disable-next-line @typescript-eslint/no-unused-vars
-    .mockImplementationOnce((query?: FindUserByUuidQuery) => {
-      return Promise.resolve(mockUser);
-    })
-    .mockImplementation(() => {
-      return Promise.resolve(undefined);
-    }),
-};
-
-const mockMessagePublisher = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('FindUserByUuidUseCase', () => {
-  let findUserByUuidUseCase: FindUserByUuidUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [],
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUserRepository,
-        },
-        {
-          provide: MESSAGE_PUBLISHER,
-          useValue: mockMessagePublisher,
-        },
-        FindUserByUuidUseCase,
-      ],
-    }).compile();
-
-    findUserByUuidUseCase = module.get<FindUserByUuidUseCase>(
-      FindUserByUuidUseCase,
-    );
-  });
-
-  it('should be defined', () => {
-    expect(findUserByUuidUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should return a user', async () => {
-      const findUserByUuidRequest: FindUserByUuidRequest =
-        new FindUserByUuidRequest();
-      findUserByUuidRequest.uuid = 'bb281075-1b98-4456-89d6-c643d3044a91';
-      const user = await findUserByUuidUseCase.execute(
-        new FindUserByUuidQuery(findUserByUuidRequest),
-      );
-      expect(user).toBe(mockUser);
-    });
-    it('should throw an error if user does not exist', async () => {
-      const findUserByUuidRequest: FindUserByUuidRequest =
-        new FindUserByUuidRequest();
-      findUserByUuidRequest.uuid = 'bb281075-1b98-4456-89d6-c643d3044a90';
-      await expect(
-        findUserByUuidUseCase.execute(
-          new FindUserByUuidQuery(findUserByUuidRequest),
-        ),
-      ).rejects.toBeInstanceOf(NotFoundException);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/infrastructure/user.repository.spec.ts
+++ b/src/modules/user/tests/unit/infrastructure/user.repository.spec.ts
@ -0,0 +1,36 @@
+import { EventEmitter2, EventEmitterModule } from '@nestjs/event-emitter';
+import { Test, TestingModule } from '@nestjs/testing';
+import { PrismaService } from '@modules/user/infrastructure/prisma.service';
+import { UserRepository } from '@modules/user/infrastructure/user.repository';
+import { UserMapper } from '@modules/user/user.mapper';
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+describe('User repository', () => {
+  let prismaService: PrismaService;
+  let userMapper: UserMapper;
+  let eventEmitter: EventEmitter2;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [EventEmitterModule.forRoot()],
+      providers: [PrismaService, UserMapper],
+    }).compile();
+
+    prismaService = module.get<PrismaService>(PrismaService);
+    userMapper = module.get<UserMapper>(UserMapper);
+    eventEmitter = module.get<EventEmitter2>(EventEmitter2);
+  });
+  it('should be defined', () => {
+    expect(
+      new UserRepository(
+        prismaService,
+        userMapper,
+        eventEmitter,
+        mockMessagePublisher,
+      ),
+    ).toBeDefined();
+  });
+});
--- a/src/modules/user/tests/unit/interface/create-user.grpc.controller.spec.ts
+++ b/src/modules/user/tests/unit/interface/create-user.grpc.controller.spec.ts
@ -0,0 +1,123 @@
+import { IdResponse } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { CommandBus } from '@nestjs/cqrs';
+import { RpcException } from '@nestjs/microservices';
+import { Test, TestingModule } from '@nestjs/testing';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+  UserAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+import { CreateUserGrpcController } from '@modules/user/interface/grpc-controllers/create-user.grpc.controller';
+import { CreateUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/create-user.request.dto';
+
+const createUserRequest: CreateUserRequestDto = {
+  firstName: 'John',
+  lastName: 'Doe',
+  email: 'john.doe@email.com',
+  phone: '+33611223344',
+};
+
+const mockCommandBus = {
+  execute: jest
+    .fn()
+    .mockImplementationOnce(() => '200d61a8-d878-4378-a609-c19ea71633d2')
+    .mockImplementationOnce(() => {
+      throw new UserAlreadyExistsException();
+    })
+    .mockImplementationOnce(() => {
+      throw new EmailAlreadyExistsException();
+    })
+    .mockImplementationOnce(() => {
+      throw new PhoneAlreadyExistsException();
+    })
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+describe('Create User Grpc Controller', () => {
+  let createUserGrpcController: CreateUserGrpcController;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: CommandBus,
+          useValue: mockCommandBus,
+        },
+        CreateUserGrpcController,
+      ],
+    }).compile();
+
+    createUserGrpcController = module.get<CreateUserGrpcController>(
+      CreateUserGrpcController,
+    );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(createUserGrpcController).toBeDefined();
+  });
+
+  it('should create a new user', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    const result: IdResponse = await createUserGrpcController.create(
+      createUserRequest,
+    );
+    expect(result).toBeInstanceOf(IdResponse);
+    expect(result.id).toBe('200d61a8-d878-4378-a609-c19ea71633d2');
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if user already exists', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await createUserGrpcController.create(createUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if email already exists', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await createUserGrpcController.create(createUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if phone already exists', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await createUserGrpcController.create(createUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a generic RpcException', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await createUserGrpcController.create(createUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.UNKNOWN);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+});
--- a/src/modules/user/tests/unit/interface/delete-user.grpc.controller.spec.ts
+++ b/src/modules/user/tests/unit/interface/delete-user.grpc.controller.spec.ts
@ -0,0 +1,99 @@
+import {
+  DatabaseErrorException,
+  NotFoundException,
+} from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { DeleteUserGrpcController } from '@modules/user/interface/grpc-controllers/delete-user.grpc.controller';
+import { DeleteUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/delete-user.request.dto';
+import { CommandBus } from '@nestjs/cqrs';
+import { RpcException } from '@nestjs/microservices';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const deleteUserRequest: DeleteUserRequestDto = {
+  id: '78153e03-4861-4f58-a705-88526efee53b',
+};
+
+const mockCommandBus = {
+  execute: jest
+    .fn()
+    .mockImplementationOnce(() => ({}))
+    .mockImplementationOnce(() => {
+      throw new NotFoundException();
+    })
+    .mockImplementationOnce(() => {
+      throw new DatabaseErrorException();
+    })
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+describe('Delete User Grpc Controller', () => {
+  let deleteUserGrpcController: DeleteUserGrpcController;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: CommandBus,
+          useValue: mockCommandBus,
+        },
+        DeleteUserGrpcController,
+      ],
+    }).compile();
+
+    deleteUserGrpcController = module.get<DeleteUserGrpcController>(
+      DeleteUserGrpcController,
+    );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(deleteUserGrpcController).toBeDefined();
+  });
+
+  it('should delete a user', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    await deleteUserGrpcController.delete(deleteUserRequest);
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if user does not exist', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await deleteUserGrpcController.delete(deleteUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.NOT_FOUND);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if a database error occurs', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await deleteUserGrpcController.delete(deleteUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.INTERNAL);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a generic RpcException', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await deleteUserGrpcController.delete(deleteUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.UNKNOWN);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+});
--- a/src/modules/user/tests/unit/interface/find-user-by-id.grpc.controller.spec.ts
+++ b/src/modules/user/tests/unit/interface/find-user-by-id.grpc.controller.spec.ts
@ -0,0 +1,103 @@
+import { NotFoundException } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { FindUserByIdGrpcController } from '@modules/user/interface/grpc-controllers/find-user-by-id.grpc.controller';
+import { UserMapper } from '@modules/user/user.mapper';
+import { QueryBus } from '@nestjs/cqrs';
+import { RpcException } from '@nestjs/microservices';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const mockQueryBus = {
+  execute: jest
+    .fn()
+    .mockImplementationOnce(() => '200d61a8-d878-4378-a609-c19ea71633d2')
+    .mockImplementationOnce(() => {
+      throw new NotFoundException();
+    })
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+const mockUserMapper = {
+  toResponse: jest.fn().mockImplementationOnce(() => ({
+    firstName: 'John',
+    lastName: 'Doe',
+    email: 'john.doe@email.com',
+    phone: '+33611223344',
+  })),
+};
+
+describe('Find User By Id Grpc Controller', () => {
+  let findUserbyIdGrpcController: FindUserByIdGrpcController;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: QueryBus,
+          useValue: mockQueryBus,
+        },
+        {
+          provide: UserMapper,
+          useValue: mockUserMapper,
+        },
+        FindUserByIdGrpcController,
+      ],
+    }).compile();
+
+    findUserbyIdGrpcController = module.get<FindUserByIdGrpcController>(
+      FindUserByIdGrpcController,
+    );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(findUserbyIdGrpcController).toBeDefined();
+  });
+
+  it('should return a user', async () => {
+    jest.spyOn(mockQueryBus, 'execute');
+    jest.spyOn(mockUserMapper, 'toResponse');
+    const response = await findUserbyIdGrpcController.findOnebyId({
+      id: '6dcf093c-c7db-4dae-8e9c-c715cebf83c7',
+    });
+    expect(response.firstName).toBe('John');
+    expect(mockQueryBus.execute).toHaveBeenCalledTimes(1);
+    expect(mockUserMapper.toResponse).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if user is not found', async () => {
+    jest.spyOn(mockQueryBus, 'execute');
+    jest.spyOn(mockUserMapper, 'toResponse');
+    expect.assertions(4);
+    try {
+      await findUserbyIdGrpcController.findOnebyId({
+        id: 'ac85f5f4-41cd-4c5d-9aee-0a1acb176fb8',
+      });
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.NOT_FOUND);
+    }
+    expect(mockQueryBus.execute).toHaveBeenCalledTimes(1);
+    expect(mockUserMapper.toResponse).toHaveBeenCalledTimes(0);
+  });
+
+  it('should throw a generic RpcException', async () => {
+    jest.spyOn(mockQueryBus, 'execute');
+    jest.spyOn(mockUserMapper, 'toResponse');
+    expect.assertions(4);
+    try {
+      await findUserbyIdGrpcController.findOnebyId({
+        id: '53c8e7ec-ef68-42bc-ba4c-5ef3effa60a6',
+      });
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.UNKNOWN);
+    }
+    expect(mockQueryBus.execute).toHaveBeenCalledTimes(1);
+    expect(mockUserMapper.toResponse).toHaveBeenCalledTimes(0);
+  });
+});
--- a/src/modules/user/tests/unit/interface/update-user.grpc.controller.spec.ts
+++ b/src/modules/user/tests/unit/interface/update-user.grpc.controller.spec.ts
@ -0,0 +1,116 @@
+import { IdResponse } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import {
+  EmailAlreadyExistsException,
+  PhoneAlreadyExistsException,
+} from '@modules/user/core/domain/user.errors';
+import { UpdateUserRequestDto } from '@modules/user/interface/grpc-controllers/dtos/update-user.request.dto';
+import { UpdateUserGrpcController } from '@modules/user/interface/grpc-controllers/update-user.grpc.controller';
+
+import { CommandBus } from '@nestjs/cqrs';
+import { RpcException } from '@nestjs/microservices';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const updateFirstNameUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  firstName: 'Johnny',
+};
+
+const updateEmailUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  email: 'john.doe@already.exists.email.com',
+};
+
+const updatePhoneUserRequest: UpdateUserRequestDto = {
+  id: 'c97b1783-76cf-4840-b298-b90b13c58894',
+  phone: '+33611223344',
+};
+
+const mockCommandBus = {
+  execute: jest
+    .fn()
+    .mockImplementationOnce(() => 'c97b1783-76cf-4840-b298-b90b13c58894')
+    .mockImplementationOnce(() => {
+      throw new EmailAlreadyExistsException();
+    })
+    .mockImplementationOnce(() => {
+      throw new PhoneAlreadyExistsException();
+    })
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+describe('Update User Grpc Controller', () => {
+  let updateUserGrpcController: UpdateUserGrpcController;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: CommandBus,
+          useValue: mockCommandBus,
+        },
+        UpdateUserGrpcController,
+      ],
+    }).compile();
+
+    updateUserGrpcController = module.get<UpdateUserGrpcController>(
+      UpdateUserGrpcController,
+    );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(updateUserGrpcController).toBeDefined();
+  });
+
+  it('should update a user', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    const result: IdResponse = await updateUserGrpcController.updateUser(
+      updateFirstNameUserRequest,
+    );
+    expect(result).toBeInstanceOf(IdResponse);
+    expect(result.id).toBe('c97b1783-76cf-4840-b298-b90b13c58894');
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if email already exists', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await updateUserGrpcController.updateUser(updateEmailUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if phone already exists', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await updateUserGrpcController.updateUser(updatePhoneUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a generic RpcException', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await updateUserGrpcController.updateUser(updateFirstNameUserRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.UNKNOWN);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+});
--- a/src/modules/user/tests/unit/message-publisher.spec.ts
+++ b/src/modules/user/tests/unit/message-publisher.spec.ts
@ -1,36 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { MessagePublisher } from '../../adapters/secondaries/message-publisher';
-import { MESSAGE_BROKER_PUBLISHER } from '../../../../app.constants';
-
-const mockMessageBrokerPublisher = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('Messager', () => {
-  let messagePublisher: MessagePublisher;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [],
-      providers: [
-        MessagePublisher,
-        {
-          provide: MESSAGE_BROKER_PUBLISHER,
-          useValue: mockMessageBrokerPublisher,
-        },
-      ],
-    }).compile();
-
-    messagePublisher = module.get<MessagePublisher>(MessagePublisher);
-  });
-
-  it('should be defined', () => {
-    expect(messagePublisher).toBeDefined();
-  });
-
-  it('should publish a message', async () => {
-    jest.spyOn(mockMessageBrokerPublisher, 'publish');
-    messagePublisher.publish('user.create.info', 'my-test');
-    expect(mockMessageBrokerPublisher.publish).toHaveBeenCalledTimes(1);
-  });
-});
--- a/src/modules/user/tests/unit/update-user.usecase.spec.ts
+++ b/src/modules/user/tests/unit/update-user.usecase.spec.ts
@ -1,84 +0,0 @@
-import { classes } from '@automapper/classes';
-import { AutomapperModule } from '@automapper/nestjs';
-import { Test, TestingModule } from '@nestjs/testing';
-import { UsersRepository } from '../../adapters/secondaries/users.repository';
-import { UpdateUserCommand } from '../../commands/update-user.command';
-import { UpdateUserRequest } from '../../domain/dtos/update-user.request';
-import { User } from '../../domain/entities/user';
-import { UpdateUserUseCase } from '../../domain/usecases/update-user.usecase';
-import { UserProfile } from '../../mappers/user.profile';
-import { MESSAGE_PUBLISHER } from '../../../../app.constants';
-
-const originalUser: User = new User();
-originalUser.uuid = 'bb281075-1b98-4456-89d6-c643d3044a91';
-originalUser.lastName = 'Doe';
-
-const updateUserRequest: UpdateUserRequest = {
-  uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
-  lastName: 'Dane',
-};
-
-const updateUserCommand: UpdateUserCommand = new UpdateUserCommand(
-  updateUserRequest,
-);
-
-const mockUsersRepository = {
-  update: jest
-    .fn()
-    .mockImplementationOnce((uuid: string, params: any) => {
-      originalUser.lastName = params.lastName;
-
-      return Promise.resolve(originalUser);
-    })
-    .mockImplementation(() => {
-      throw new Error('Error');
-    }),
-};
-
-const mockMessager = {
-  publish: jest.fn().mockImplementation(),
-};
-
-describe('UpdateUserUseCase', () => {
-  let updateUserUseCase: UpdateUserUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
-
-      providers: [
-        {
-          provide: UsersRepository,
-          useValue: mockUsersRepository,
-        },
-        UpdateUserUseCase,
-        UserProfile,
-        {
-          provide: MESSAGE_PUBLISHER,
-          useValue: mockMessager,
-        },
-      ],
-    }).compile();
-
-    updateUserUseCase = module.get<UpdateUserUseCase>(UpdateUserUseCase);
-  });
-
-  it('should be defined', () => {
-    expect(updateUserUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should update a user', async () => {
-      const updatedUser: User = await updateUserUseCase.execute(
-        updateUserCommand,
-      );
-
-      expect(updatedUser.lastName).toBe(updateUserRequest.lastName);
-    });
-    it('should throw an error if user does not exist', async () => {
-      await expect(
-        updateUserUseCase.execute(updateUserCommand),
-      ).rejects.toBeInstanceOf(Error);
-    });
-  });
-});
--- a/src/modules/user/tests/unit/user.mapper.spec.ts
+++ b/src/modules/user/tests/unit/user.mapper.spec.ts
@ -0,0 +1,60 @@
+import { UserEntity } from '@modules/user/core/domain/user.entity';
+import {
+  UserReadModel,
+  UserWriteModel,
+} from '@modules/user/infrastructure/user.repository';
+import { UserResponseDto } from '@modules/user/interface/dtos/user.response.dto';
+import { UserMapper } from '@modules/user/user.mapper';
+import { Test } from '@nestjs/testing';
+
+const now = new Date('2023-06-21 06:00:00');
+const userEntity: UserEntity = new UserEntity({
+  id: 'c160cf8c-f057-4962-841f-3ad68346df44',
+  props: {
+    firstName: 'John',
+    lastName: 'Doe',
+    email: 'john.doe@email.com',
+    phone: '+33611223344',
+  },
+  createdAt: now,
+  updatedAt: now,
+});
+const userReadModel: UserReadModel = {
+  uuid: 'c160cf8c-f057-4962-841f-3ad68346df44',
+  firstName: 'John',
+  lastName: 'Doe',
+  email: 'john.doe@email.com',
+  phone: '+33611223344',
+  createdAt: now,
+  updatedAt: now,
+};
+
+describe('User Mapper', () => {
+  let userMapper: UserMapper;
+
+  beforeAll(async () => {
+    const module = await Test.createTestingModule({
+      providers: [UserMapper],
+    }).compile();
+    userMapper = module.get<UserMapper>(UserMapper);
+  });
+
+  it('should be defined', () => {
+    expect(userMapper).toBeDefined();
+  });
+
+  it('should map domain entity to persistence data', async () => {
+    const mapped: UserWriteModel = userMapper.toPersistence(userEntity);
+    expect(mapped.lastName).toBe('Doe');
+  });
+
+  it('should map persisted data to domain entity', async () => {
+    const mapped: UserEntity = userMapper.toDomain(userReadModel);
+    expect(mapped.getProps().firstName).toBe('John');
+  });
+
+  it('should map domain entity to response', async () => {
+    const mapped: UserResponseDto = userMapper.toResponse(userEntity);
+    expect(mapped.id).toBe('c160cf8c-f057-4962-841f-3ad68346df44');
+  });
+});
--- a/src/modules/user/user.constants.ts
+++ b/src/modules/user/user.constants.ts
@ -0,0 +1,3 @@
+export const USER_CREATED_ROUTING_KEY = 'user.created';
+export const USER_UPDATED_ROUTING_KEY = 'user.updated';
+export const USER_DELETED_ROUTING_KEY = 'user.deleted';
--- a/Show More
+++ b/Show More
				`@ -0,0 +1 @@`
				`export const MESSAGE_PUBLISHER = Symbol('MESSAGE_PUBLISHER');`