findAll

src/modules/users/adapters/primaries/user.proto

@@ -21,10 +21,14 @@ message User {
   string email = 4;
 }
 
-message UserFilter {}
+message UserFilter {
+  optional int32 page = 1;
+  optional int32 perPage = 2;
+}
 
 message Users {
-  repeated User users = 1;
+  repeated User data = 1;
+  int32 total = 2;
 }
 
 message Empty {}

src/modules/users/adapters/primaries/users.controller.ts

@@ -8,11 +8,14 @@ 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/dto/create-user.request';
+import { FindAllUsersRequest } from '../../domain/dto/find-all-users.request';
 import { FindUserByUuidRequest } from '../../domain/dto/find-user-by-uuid.request';
 import { UpdateUserRequest } from '../../domain/dto/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/src/interfaces/collection.interface';
 
 @Controller()
 export class UsersController {
@@ -22,6 +25,19 @@ export class UsersController {
     @InjectMapper() private readonly _mapper: Mapper,
   ) {}
 
+  @GrpcMethod('UsersService', 'FindAll')
+  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')
   async findOneByUuid(data: FindUserByUuidRequest): Promise<UserPresenter> {
     const user = await this._queryBus.execute(

src/modules/users/domain/dto/find-all-users.request.ts

@@ -0,0 +1,11 @@
+import { IsInt, IsOptional } from 'class-validator';
+
+export class FindAllUsersRequest {
+  @IsInt()
+  @IsOptional()
+  page?: number;
+
+  @IsInt()
+  @IsOptional()
+  perPage?: number;
+}

src/modules/users/domain/usecases/find-all-users.usecase.ts

@@ -0,0 +1,19 @@
+import { QueryHandler } from '@nestjs/cqrs';
+import { ICollection } from 'src/modules/database/src/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 _usersRepository: UsersRepository) {}
+
+  async execute(
+    findAllUsersQuery: FindAllUsersQuery,
+  ): Promise<ICollection<User>> {
+    return this._usersRepository.findAll(
+      findAllUsersQuery.page,
+      findAllUsersQuery.perPage,
+    );
+  }
+}

src/modules/users/queries/find-all-users.query.ts

@@ -0,0 +1,11 @@
+import { FindAllUsersRequest } from '../domain/dto/find-all-users.request';
+
+export class FindAllUsersQuery {
+  page: number;
+  perPage: number;
+
+  constructor(findAllUsersRequest?: FindAllUsersRequest) {
+    this.page = findAllUsersRequest?.page ?? 1;
+    this.perPage = findAllUsersRequest?.perPage ?? 10;
+  }
+}

src/modules/users/users.module.ts

@@ -5,6 +5,7 @@ import { UsersController } from './adapters/primaries/users.controller';
 import { UsersRepository } from './adapters/secondaries/users.repository';
 import { CreateUserUseCase } from './domain/usecases/create-user.usecase';
 import { DeleteUserUseCase } from './domain/usecases/delete-user.usecase';
+import { FindAllUsersUseCase } from './domain/usecases/find-all-users.usecase';
 import { FindUserByUuidUseCase } from './domain/usecases/find-user-by-uuid.usecase';
 import { UpdateUserUseCase } from './domain/usecases/update-user.usecase';
 import { UserProfile } from './mappers/user.profile';
@@ -15,6 +16,7 @@ import { UserProfile } from './mappers/user.profile';
   providers: [
     UserProfile,
     UsersRepository,
+    FindAllUsersUseCase,
     FindUserByUuidUseCase,
     CreateUserUseCase,
     UpdateUserUseCase,