plug opa in auth

.env.dist

@@ -13,3 +13,4 @@ POSTGRES_IMAGE=postgres:15.0
 
 # OPA
 OPA_IMAGE=openpolicyagent/opa:0.48.0-rootless
+OPA_URL=http://v3-opa:8181/v1/data/

.env.test

@@ -13,3 +13,4 @@ POSTGRES_IMAGE=postgres:15.0
 
 # OPA
 OPA_IMAGE=openpolicyagent/opa:0.48.0-rootless
+OPA_URL=http://v3-opa:8181/v1/data/

docker-compose.yml

@@ -61,7 +61,6 @@ services:
     - "--server"
     - "--log-format=json-pretty"
     - "--set=decision_logs.console=true"
-    - "--set=default_decision=example/allow"
     - "./policies/"
     volumes:
       - ./opa:/policies

opa/user/user1.rego

@@ -1,7 +1,7 @@
-package user.me
+package user.read
 
 default allow := false
 
 allow := true {
-    input.user == "jean"
+    input.uuid == "96d99d44-e0a6-458e-a656-de2a400d60a8"
 }

opa/user/user2.rego

@@ -3,5 +3,5 @@ package user.list
 default allow := false
 
 allow := true {
-    input.user == "pierre"
+    input.uuid == "96d99d44-e0a6-458e-a656-de2a400d60a9"
 }

package-lock.json

@@ -15,6 +15,7 @@
         "@golevelup/nestjs-rabbitmq": "^3.4.0",
         "@grpc/grpc-js": "^1.8.0",
         "@grpc/proto-loader": "^0.7.4",
+        "@nestjs/axios": "^1.0.1",
         "@nestjs/common": "^9.0.0",
         "@nestjs/config": "^2.2.0",
         "@nestjs/core": "^9.0.0",
@@ -22,6 +23,7 @@
         "@nestjs/microservices": "^9.2.1",
         "@nestjs/platform-express": "^9.0.0",
         "@prisma/client": "^4.7.1",
+        "axios": "^1.2.2",
         "bcrypt": "^5.1.0",
         "class-transformer": "^0.5.1",
         "class-validator": "^0.14.0",
@@ -1642,6 +1644,29 @@
         "node-pre-gyp": "bin/node-pre-gyp"
       }
     },
+    "node_modules/@nestjs/axios": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@nestjs/axios/-/axios-1.0.1.tgz",
+      "integrity": "sha512-TpoZM/0ZJ9xiC04qkRDFod93LCZ12TQARRU3ejDvBK2E8emvzM4HThOs5ePklVxce4Q1ZsnrIWqnImvoDmJYnQ==",
+      "dependencies": {
+        "axios": "1.2.1"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^7.0.0 || ^8.0.0 || ^9.0.0",
+        "reflect-metadata": "^0.1.12",
+        "rxjs": "^6.0.0 || ^7.0.0"
+      }
+    },
+    "node_modules/@nestjs/axios/node_modules/axios": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.2.1.tgz",
+      "integrity": "sha512-I88cFiGu9ryt/tfVEi4kX2SITsvDddTajXTOFmt2uK1ZVA8LytjtdeyefdQWEf5PU8w+4SSJDoYnggflB5tW4A==",
+      "dependencies": {
+        "follow-redirects": "^1.15.0",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "node_modules/@nestjs/cli": {
       "version": "9.1.5",
       "resolved": "https://registry.npmjs.org/@nestjs/cli/-/cli-9.1.5.tgz",
@@ -3173,8 +3198,17 @@
     "node_modules/asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
-      "dev": true
+    },
+    "node_modules/axios": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.2.2.tgz",
+      "integrity": "sha512-bz/J4gS2S3I7mpN/YZfGFTqhXTYzRho8Ay38w2otuuDR322KzFIWm/4W2K6gIwvWaws5n+mnb7D1lN9uD+QH6Q==",
+      "dependencies": {
+        "follow-redirects": "^1.15.0",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
     },
     "node_modules/babel-jest": {
       "version": "28.1.3",
@@ -3813,7 +3847,6 @@
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
       "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
-      "dev": true,
       "dependencies": {
         "delayed-stream": "~1.0.0"
       },
@@ -4015,7 +4048,6 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
-      "dev": true,
       "engines": {
         "node": ">=0.4.0"
       }
@@ -4854,6 +4886,25 @@
       "integrity": "sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==",
       "dev": true
     },
+    "node_modules/follow-redirects": {
+      "version": "1.15.2",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.2.tgz",
+      "integrity": "sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/fork-ts-checker-webpack-plugin": {
       "version": "7.2.13",
       "resolved": "https://registry.npmjs.org/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-7.2.13.tgz",
@@ -4908,7 +4959,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
       "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
-      "dev": true,
       "dependencies": {
         "asynckit": "^0.4.0",
         "combined-stream": "^1.0.8",
@@ -7548,6 +7598,11 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+    },
     "node_modules/pump": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
@@ -10487,6 +10542,26 @@
         "tar": "^6.1.11"
       }
     },
+    "@nestjs/axios": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@nestjs/axios/-/axios-1.0.1.tgz",
+      "integrity": "sha512-TpoZM/0ZJ9xiC04qkRDFod93LCZ12TQARRU3ejDvBK2E8emvzM4HThOs5ePklVxce4Q1ZsnrIWqnImvoDmJYnQ==",
+      "requires": {
+        "axios": "1.2.1"
+      },
+      "dependencies": {
+        "axios": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/axios/-/axios-1.2.1.tgz",
+          "integrity": "sha512-I88cFiGu9ryt/tfVEi4kX2SITsvDddTajXTOFmt2uK1ZVA8LytjtdeyefdQWEf5PU8w+4SSJDoYnggflB5tW4A==",
+          "requires": {
+            "follow-redirects": "^1.15.0",
+            "form-data": "^4.0.0",
+            "proxy-from-env": "^1.1.0"
+          }
+        }
+      }
+    },
     "@nestjs/cli": {
       "version": "9.1.5",
       "resolved": "https://registry.npmjs.org/@nestjs/cli/-/cli-9.1.5.tgz",
@@ -11648,8 +11723,17 @@
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
-      "dev": true
+    },
+    "axios": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.2.2.tgz",
+      "integrity": "sha512-bz/J4gS2S3I7mpN/YZfGFTqhXTYzRho8Ay38w2otuuDR322KzFIWm/4W2K6gIwvWaws5n+mnb7D1lN9uD+QH6Q==",
+      "requires": {
+        "follow-redirects": "^1.15.0",
+        "form-data": "^4.0.0",
+        "proxy-from-env": "^1.1.0"
+      }
     },
     "babel-jest": {
       "version": "28.1.3",
@@ -12118,7 +12202,6 @@
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
       "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
-      "dev": true,
       "requires": {
         "delayed-stream": "~1.0.0"
       }
@@ -12278,8 +12361,7 @@
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
-      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ=="
-      "dev": true
     },
     "delegates": {
       "version": "1.0.0",
@@ -12926,6 +13008,11 @@
       "integrity": "sha512-5nqDSxl8nn5BSNxyR3n4I6eDmbolI6WT+QqR547RwxQapgjQBmtktdP+HTBb/a/zLsbzERTONyUB5pefh5TtjQ==",
       "dev": true
     },
+    "follow-redirects": {
+      "version": "1.15.2",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.2.tgz",
+      "integrity": "sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA=="
+    },
     "fork-ts-checker-webpack-plugin": {
       "version": "7.2.13",
       "resolved": "https://registry.npmjs.org/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-7.2.13.tgz",
@@ -12962,7 +13049,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
       "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
-      "dev": true,
       "requires": {
         "asynckit": "^0.4.0",
         "combined-stream": "^1.0.8",
@@ -14917,6 +15003,11 @@
         "ipaddr.js": "1.9.1"
       }
     },
+    "proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+    },
     "pump": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",

package.json

@@ -32,6 +32,7 @@
     "@golevelup/nestjs-rabbitmq": "^3.4.0",
     "@grpc/grpc-js": "^1.8.0",
     "@grpc/proto-loader": "^0.7.4",
+    "@nestjs/axios": "^1.0.1",
     "@nestjs/common": "^9.0.0",
     "@nestjs/config": "^2.2.0",
     "@nestjs/core": "^9.0.0",
@@ -39,6 +40,7 @@
     "@nestjs/microservices": "^9.2.1",
     "@nestjs/platform-express": "^9.0.0",
     "@prisma/client": "^4.7.1",
+    "axios": "^1.2.2",
     "bcrypt": "^5.1.0",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.0",
@@ -80,7 +82,11 @@
       "json",
       "ts"
     ],
-    "modulePathIgnorePatterns": [".controller.ts",".module.ts","main.ts"],
+    "modulePathIgnorePatterns": [
+      ".controller.ts",
+      ".module.ts",
+      "main.ts"
+    ],
     "rootDir": "src",
     "testRegex": ".*\\.spec\\.ts$",
     "transform": {

src/main.ts

@@ -9,11 +9,17 @@ async function bootstrap() {
     {
       transport: Transport.GRPC,
       options: {
-        package: 'authentication',
+        package: ['authentication', 'authorization'],
-        protoPath: join(
+        protoPath: [
-          __dirname,
+          join(
-          'modules/authentication/adapters/primaries/authentication.proto',
+            __dirname,
-        ),
+            'modules/authentication/adapters/primaries/authentication.proto',
+          ),
+          join(
+            __dirname,
+            'modules/authorization/adapters/primaries/authorization.proto',
+          ),
+        ],
         url: process.env.SERVICE_URL + ':' + process.env.SERVICE_PORT,
         loader: { keepCase: true, enums: String },
       },

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

@@ -0,0 +1,28 @@
+import { Controller } from '@nestjs/common';
+import { QueryBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { DecisionRequest } from '../../domain/dtos/decision.request';
+import { DecisionQuery } from '../../queries/decision.query';
+import { DecisionResult } from '../secondaries/decision-result';
+
+@Controller()
+export class AuthorizationController {
+  constructor(private readonly _queryBus: QueryBus) {}
+
+  @GrpcMethod('AuthorizationService', 'Decide')
+  async decide(data: DecisionRequest): Promise<DecisionResult> {
+    try {
+      const decision: boolean = await this._queryBus.execute(
+        new DecisionQuery(data.uuid, data.domain, data.action, data.context),
+      );
+      return {
+        allow: decision,
+      };
+    } catch (e) {
+      throw new RpcException({
+        code: 7,
+        message: 'Permission denied',
+      });
+    }
+  }
+}

src/modules/authorization/adapters/primaries/authorization.proto

@@ -0,0 +1,35 @@
+syntax = "proto3";
+
+package authorization;
+
+service AuthorizationService {
+  rpc Decide(AuthorizationRequest) returns (Decision);
+}
+
+message AuthorizationRequest {
+  string uuid = 1;
+  Domain domain = 2;
+  Action action = 3;
+  repeated Item context = 4;
+}
+
+enum Domain {
+  user = 0;
+}
+
+enum Action {
+  create = 0;
+  read = 1;
+  update = 2;
+  delete = 3;
+  list = 4;
+}
+
+message Item {
+  string name = 1;
+  string value = 2;
+}
+
+message Decision {
+  bool allow = 1;
+}

src/modules/authorization/adapters/secondaries/decision-result.ts

@@ -0,0 +1,3 @@
+export class DecisionResult {
+  allow: boolean;
+}

src/modules/authorization/adapters/secondaries/decision.ts

@@ -0,0 +1,6 @@
+import { DecisionResult } from './decision-result';
+
+export class Decision {
+  decision_id: string;
+  result: DecisionResult;
+}

src/modules/authorization/adapters/secondaries/opa.decision-maker.ts

@@ -0,0 +1,38 @@
+import { HttpService } from '@nestjs/axios';
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { lastValueFrom } from 'rxjs';
+import { Action } from '../../domain/dtos/action.enum';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { IMakeDecision } from '../../domain/interfaces/decision-maker';
+import { Decision } from './decision';
+
+@Injectable()
+export class OpaDecisionMaker extends IMakeDecision {
+  constructor(
+    private readonly configService: ConfigService,
+    private readonly httpService: HttpService,
+  ) {
+    super();
+  }
+
+  async decide(
+    uuid: string,
+    domain: Domain,
+    action: Action,
+    context: Array<{ name: string; value: string }>,
+  ): Promise<boolean> {
+    const { data } = await lastValueFrom(
+      this.httpService.post<Decision>(
+        this.configService.get<string>('OPA_URL') + domain + '/' + action,
+        {
+          input: {
+            uuid,
+            ...context,
+          },
+        },
+      ),
+    );
+    return data.result.allow;
+  }
+}

src/modules/authorization/authorization.module.ts

@@ -1,11 +1,15 @@
+import { HttpModule } from '@nestjs/axios';
 import { Module } from '@nestjs/common';
 import { CqrsModule } from '@nestjs/cqrs';
-import { ValidateAuthenticationUseCase } from '../authentication/domain/usecases/validate-authentication.usecase';
 import { DatabaseModule } from '../database/database.module';
+import { AuthorizationController } from './adapters/primaries/authorization.controller';
+import { OpaDecisionMaker } from './adapters/secondaries/opa.decision-maker';
+import { DecisionUseCase } from './domain/usecases/decision.usecase';
 
 @Module({
-  imports: [DatabaseModule, CqrsModule],
+  imports: [DatabaseModule, CqrsModule, HttpModule],
   exports: [],
-  providers: [ValidateAuthenticationUseCase],
+  controllers: [AuthorizationController],
+  providers: [OpaDecisionMaker, DecisionUseCase],
 })
 export class AuthorizationModule {}

src/modules/authorization/domain/dtos/action.enum.ts

@@ -0,0 +1,7 @@
+export enum Action {
+  create = 'create',
+  read = 'read',
+  update = 'update',
+  delete = 'delete',
+  list = 'list',
+}

src/modules/authorization/domain/dtos/decision.request.ts

@@ -0,0 +1,20 @@
+import { IsArray, IsNotEmpty, IsString } from 'class-validator';
+import { Action } from './action.enum';
+import { Domain } from './domain.enum';
+
+export class DecisionRequest {
+  @IsString()
+  @IsNotEmpty()
+  uuid: string;
+
+  @IsString()
+  @IsNotEmpty()
+  domain: Domain;
+
+  @IsString()
+  @IsNotEmpty()
+  action: Action;
+
+  @IsArray()
+  context?: Array<{ name: string; value: string }>;
+}

src/modules/authorization/domain/dtos/domain.enum.ts

@@ -0,0 +1,3 @@
+export enum Domain {
+  user = 'user',
+}

src/modules/authorization/domain/dtos/validate-authorization.request.ts

@@ -1,11 +0,0 @@
-import { IsNotEmpty, IsString } from 'class-validator';
-
-export class ValidateAuthorizationRequest {
-  @IsString()
-  @IsNotEmpty()
-  uuid: string;
-
-  @IsString()
-  @IsNotEmpty()
-  action: string;
-}

src/modules/authorization/domain/entities/authorization.ts

@@ -1,4 +0,0 @@
-export class Authorization {
-  uuid: string;
-  action: string;
-}

src/modules/authorization/domain/interfaces/decision-maker.ts

@@ -0,0 +1,13 @@
+import { Injectable } from '@nestjs/common';
+import { Action } from '../dtos/action.enum';
+import { Domain } from '../dtos/domain.enum';
+
+@Injectable()
+export abstract class IMakeDecision {
+  abstract decide(
+    uuid: string,
+    domain: Domain,
+    action: Action,
+    context: Array<{ name: string; value: string }>,
+  ): Promise<boolean>;
+}

src/modules/authorization/domain/usecases/decision.usecase.ts

@@ -0,0 +1,17 @@
+import { QueryHandler } from '@nestjs/cqrs';
+import { OpaDecisionMaker } from '../../adapters/secondaries/opa.decision-maker';
+import { DecisionQuery } from '../../queries/decision.query';
+
+@QueryHandler(DecisionQuery)
+export class DecisionUseCase {
+  constructor(private readonly _decisionMaker: OpaDecisionMaker) {}
+
+  async execute(decisionQuery: DecisionQuery): Promise<boolean> {
+    return this._decisionMaker.decide(
+      decisionQuery.uuid,
+      decisionQuery.domain,
+      decisionQuery.action,
+      decisionQuery.context,
+    );
+  }
+}

src/modules/authorization/domain/usecases/validate-authorization.usecase.ts

@@ -1,9 +0,0 @@
-import { QueryHandler } from '@nestjs/cqrs';
-import { ValidateAuthorizationQuery } from '../../queries/validate-authorization.query';
-
-@QueryHandler(ValidateAuthorizationQuery)
-export class ValidateAuthorizationUseCase {
-  async execute(validate: ValidateAuthorizationQuery): Promise<boolean> {
-    return Promise.resolve(validate.action == 'authorized');
-  }
-}

src/modules/authorization/queries/decision.query.ts

@@ -0,0 +1,21 @@
+import { Action } from '../domain/dtos/action.enum';
+import { Domain } from '../domain/dtos/domain.enum';
+
+export class DecisionQuery {
+  readonly uuid: string;
+  readonly domain: Domain;
+  readonly action: Action;
+  readonly context: Array<{ name: string; value: string }>;
+
+  constructor(
+    uuid: string,
+    domain: Domain,
+    action: Action,
+    context?: Array<{ name: string; value: string }>,
+  ) {
+    this.uuid = uuid;
+    this.domain = domain;
+    this.action = action;
+    this.context = context;
+  }
+}

src/modules/authorization/queries/validate-authorization.query.ts

@@ -1,9 +0,0 @@
-export class ValidateAuthorizationQuery {
-  readonly uuid: string;
-  readonly action: string;
-
-  constructor(uuid: string, action: string) {
-    this.uuid = uuid;
-    this.action = action;
-  }
-}

src/modules/authorization/tests/unit/decision.usecase.spec.ts

@@ -0,0 +1,62 @@
+import { classes } from '@automapper/classes';
+import { AutomapperModule } from '@automapper/nestjs';
+import { Test, TestingModule } from '@nestjs/testing';
+import { OpaDecisionMaker } from '../../adapters/secondaries/opa.decision-maker';
+import { Action } from '../../domain/dtos/action.enum';
+import { DecisionRequest } from '../../domain/dtos/decision.request';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { DecisionUseCase } from '../../domain/usecases/decision.usecase';
+import { DecisionQuery } from '../../queries/decision.query';
+
+const mockOpaDecisionMaker = {
+  decide: jest.fn().mockResolvedValue(Promise.resolve(true)),
+};
+
+describe('DecisionUseCase', () => {
+  let decisionUseCase: DecisionUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
+      providers: [
+        {
+          provide: OpaDecisionMaker,
+          useValue: mockOpaDecisionMaker,
+        },
+        DecisionUseCase,
+      ],
+    }).compile();
+
+    decisionUseCase = module.get<DecisionUseCase>(DecisionUseCase);
+  });
+
+  it('should be defined', () => {
+    expect(decisionUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should validate an authorization', async () => {
+      const decisionRequest: DecisionRequest = new DecisionRequest();
+      decisionRequest.uuid = 'bb281075-1b98-4456-89d6-c643d3044a91';
+      decisionRequest.domain = Domain.user;
+      decisionRequest.action = Action.create;
+      decisionRequest.context = [
+        {
+          name: 'context1',
+          value: 'value1',
+        },
+      ];
+
+      expect(
+        decisionUseCase.execute(
+          new DecisionQuery(
+            decisionRequest.uuid,
+            decisionRequest.domain,
+            decisionRequest.action,
+            decisionRequest.context,
+          ),
+        ),
+      ).toBeTruthy();
+    });
+  });
+});

src/modules/authorization/tests/unit/opa.decision-maker.spec.ts

@@ -0,0 +1,88 @@
+import { HttpService } from '@nestjs/axios';
+import { ConfigService } from '@nestjs/config';
+import { Test, TestingModule } from '@nestjs/testing';
+import { of } from 'rxjs';
+import { OpaDecisionMaker } from '../../adapters/secondaries/opa.decision-maker';
+import { Action } from '../../domain/dtos/action.enum';
+import { Domain } from '../../domain/dtos/domain.enum';
+
+const mockHttpService = {
+  post: jest
+    .fn()
+    .mockImplementationOnce(() => {
+      return of({
+        status: 200,
+        data: {
+          decision_id: '96d99d44-e0a6-458e-a656-de2a400d60a8',
+          result: {
+            allow: true,
+          },
+        },
+      });
+    })
+    .mockImplementationOnce(() => {
+      return of({
+        status: 200,
+        data: {
+          decision_id: '96d99d44-e0a6-458e-a656-de2a400d60a9',
+          result: {
+            allow: false,
+          },
+        },
+      });
+    }),
+};
+
+const mockConfigService = {
+  get: jest.fn().mockResolvedValue({
+    OPA_URL: 'http://url/',
+  }),
+};
+
+describe('OpaDecisionMaker', () => {
+  let opaDecisionMaker: OpaDecisionMaker;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [],
+      providers: [
+        {
+          provide: HttpService,
+          useValue: mockHttpService,
+        },
+        {
+          provide: ConfigService,
+          useValue: mockConfigService,
+        },
+        OpaDecisionMaker,
+      ],
+    }).compile();
+
+    opaDecisionMaker = module.get<OpaDecisionMaker>(OpaDecisionMaker);
+  });
+
+  it('should be defined', () => {
+    expect(opaDecisionMaker).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should return a truthy decision', async () => {
+      const decision = await opaDecisionMaker.decide(
+        'bb281075-1b98-4456-89d6-c643d3044a91',
+        Domain.user,
+        Action.read,
+        [],
+      );
+      expect(decision).toBeTruthy();
+    });
+    it('should return a falsy decision', async () => {
+      const decision = await opaDecisionMaker.decide(
+        'bb281075-1b98-4456-89d6-c643d3044a91',
+        Domain.user,
+        Action.read,
+        [],
+      );
+      expect(decision).toBeFalsy();
+    });
+  });
+});

src/modules/authorization/tests/unit/validate-authorization.usecase.spec.ts

@@ -1,44 +0,0 @@
-import { classes } from '@automapper/classes';
-import { AutomapperModule } from '@automapper/nestjs';
-import { Test, TestingModule } from '@nestjs/testing';
-import { ValidateAuthorizationRequest } from '../../domain/dtos/validate-authorization.request';
-import { ValidateAuthorizationUseCase } from '../../domain/usecases/validate-authorization.usecase';
-import { ValidateAuthorizationQuery } from '../../queries/validate-authorization.query';
-
-describe('ValidateAuthorizationUseCase', () => {
-  let validateAuthorizationUseCase: ValidateAuthorizationUseCase;
-
-  beforeAll(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
-      providers: [ValidateAuthorizationUseCase],
-    }).compile();
-
-    validateAuthorizationUseCase = module.get<ValidateAuthorizationUseCase>(
-      ValidateAuthorizationUseCase,
-    );
-  });
-
-  it('should be defined', () => {
-    expect(validateAuthorizationUseCase).toBeDefined();
-  });
-
-  describe('execute', () => {
-    it('should validate an authorization', async () => {
-      const validateAuthorizationRequest: ValidateAuthorizationRequest =
-        new ValidateAuthorizationRequest();
-      validateAuthorizationRequest.uuid =
-        'bb281075-1b98-4456-89d6-c643d3044a91';
-      validateAuthorizationRequest.action = 'authorized';
-
-      expect(
-        validateAuthorizationUseCase.execute(
-          new ValidateAuthorizationQuery(
-            validateAuthorizationRequest.uuid,
-            validateAuthorizationRequest.action,
-          ),
-        ),
-      ).toBeTruthy();
-    });
-  });
-});