feat(Heatlh) add ep and tests

.gitignore

@@ -133,3 +133,4 @@ dist
 
 test-report.xml
 debug.json
+config/*.env

jest.config.js

@@ -9,5 +9,10 @@ module.exports = {
   reporters: ['default'],
   testResultsProcessor: 'jest-sonar-reporter',
   coverageReporters: ['text', 'html', 'lcov', 'clover'],
-  coveragePathIgnorePatterns: ['/node_modules/', '/test/']
+  coveragePathIgnorePatterns: [
+    '/node_modules/',
+    '/test/',
+    '/start.ts',
+    '/server.ts'
+  ]
 };

package.json

@@ -9,6 +9,7 @@
   "scripts": {
     "check-dependencies": "madge --circular ./src",
     "dev:api": "cross-env NODE_ENV=dev ts-node-dev --ignore-watch node_modules ./src/apps/apiApp/backend/start.ts",
+    "start:api": "cross-env NODE_ENV=production ts-node ./src/apps/apiApp/backend/start.ts",
     "lint": "eslint . --ext .ts --max-warnings=0",
     "lint:fix": "eslint . --ext .ts --fix",
     "pre-commit": "lint-staged",

sonar-project.properties

@@ -1,6 +1,7 @@
 sonar.projectKey=vinjatovix_ts-api
 sonar.organization=vinjatovix
 sonar.javascript.lcov.reportPaths=coverage/lcov.info
+sonar.coverage.exclusions=**/tests/**/*, **/node_modules/**/*, **/start.ts
 
 
 # This is the name and version displayed in the SonarCloud UI.

src/apps/apiApp/backend/ApiApp.ts

@@ -0,0 +1,20 @@
+import { Server } from './server';
+
+export class ApiApp {
+  server?: Server;
+
+  async start() {
+    const port: string = process.env.PORT ?? '0';
+    this.server = new Server(port);
+
+    return this.server.listen();
+  }
+
+  async stop() {
+    return this.server?.stop();
+  }
+
+  get httpServer() {
+    return this.server?.getHTTPServer();
+  }
+}

src/apps/apiApp/backend/controllers/health/GetStatusController.ts

@@ -0,0 +1,8 @@
+import { Request, Response } from 'express';
+import { Controller } from '../../../shared/controllers/Controller';
+
+export class GetStatusController implements Controller {
+  async run(_req: Request, res: Response): Promise<void> {
+    res.status(200).json({ status: 'OK' });
+  }
+}

src/apps/apiApp/backend/dependency-injection/application.yml

@@ -0,0 +1,2 @@
+imports:
+  - { resource: ./apps/application.yml }

src/apps/apiApp/backend/dependency-injection/application_dev.yml

@@ -0,0 +1,2 @@
+imports:
+ - { resource: ./application.yml }

src/apps/apiApp/backend/dependency-injection/application_production.yml

@@ -0,0 +1,2 @@
+imports:
+ - { resource: ./application.yml }

src/apps/apiApp/backend/dependency-injection/application_test.yml

@@ -0,0 +1,2 @@
+imports:
+ - { resource: ./application.yml }

src/apps/apiApp/backend/dependency-injection/apps/application.yml

@@ -0,0 +1,4 @@
+services:
+  Apps.apiApp.controllers.health.GetStatusController:
+    class: ../../controllers/health/GetStatusController
+    arguments: []

src/apps/apiApp/backend/dependency-injection/index.ts

@@ -0,0 +1,9 @@
+import { ContainerBuilder, YamlFileLoader } from 'node-dependency-injection';
+
+const container = new ContainerBuilder();
+const loader = new YamlFileLoader(container);
+const env = process.env.NODE_ENV ?? 'dev';
+
+loader.load(`${__dirname}/application_${env}.yml`);
+
+export default container;

src/apps/apiApp/backend/routes/health/health.routes.ts

@@ -0,0 +1,14 @@
+import { Request, Response, Router } from 'express';
+import { GetStatusController } from '../../controllers/health/GetStatusController';
+import container from '../../dependency-injection';
+
+const prefix = '/api/v1/health';
+
+export const register = (router: Router) => {
+  const controller: GetStatusController = container.get(
+    'Apps.apiApp.controllers.health.GetStatusController'
+  );
+  router.get(`${prefix}/http`, (req: Request, res: Response) => {
+    controller.run(req, res);
+  });
+};

src/apps/apiApp/backend/routes/index.ts

@@ -0,0 +1,18 @@
+import { Router } from 'express';
+import { globSync } from 'glob';
+
+export function registerRoutes(router: Router) {
+  const routes = globSync('**/*.routes.*', {
+    cwd: __dirname,
+    ignore: '**/index.ts'
+  });
+  routes.forEach((route) => {
+    _register(route, router);
+  });
+}
+
+const _register = (routePath: string, router: Router) => {
+  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  const route = require(__dirname + '/' + routePath);
+  route.register(router);
+};

src/apps/apiApp/backend/server.ts

@@ -0,0 +1,80 @@
+import dotenv from 'dotenv';
+import bodyParser from 'body-parser';
+import errorHandler from 'errorhandler';
+import express, { Request, Response, NextFunction } from 'express';
+import Router from 'express-promise-router';
+import helmet from 'helmet';
+import * as http from 'http';
+import httpStatus from 'http-status';
+import cors from 'cors';
+import { registerRoutes } from './routes';
+
+dotenv.config();
+const corsOptions = {
+  origin: '*',
+  methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
+  credentials: true
+};
+
+export class Server {
+  private express: express.Express;
+  private port: string;
+  private httpServer?: http.Server;
+
+  constructor(port: string) {
+    this.port = port;
+    this.express = express();
+    this.express.use(cors(corsOptions));
+    this.express.use(bodyParser.json());
+    this.express.use(bodyParser.urlencoded({ extended: true }));
+    this.express.use(helmet.xssFilter());
+    this.express.use(helmet.noSniff());
+    this.express.use(helmet.hidePoweredBy());
+    this.express.use(helmet.frameguard({ action: 'deny' }));
+    const router = Router();
+    router.use(errorHandler());
+    this.express.use(router);
+
+    registerRoutes(router);
+
+    router.use(
+      (err: Error, _req: Request, res: Response, _next: NextFunction): void => {
+        console.log(err);
+        res.status(httpStatus.INTERNAL_SERVER_ERROR).send(err.message);
+      }
+    );
+  }
+
+  async listen(): Promise<void> {
+    return new Promise((resolve) => {
+      const env = this.express.get('env') as string;
+      this.httpServer = this.express.listen(this.port, () => {
+        console.log(
+          `  Mock Backend App is running at http://localhost:${this.port} in ${env} mode`
+        );
+        console.log('  Press CTRL-C to stop\n');
+        resolve();
+      });
+    });
+  }
+
+  getHTTPServer() {
+    return this.httpServer;
+  }
+
+  async stop(): Promise<void> {
+    return new Promise((resolve, reject) => {
+      if (this.httpServer) {
+        this.httpServer.close((error) => {
+          if (error) {
+            reject(error);
+            return;
+          }
+          resolve();
+        });
+      } else {
+        resolve();
+      }
+    });
+  }
+}

src/apps/apiApp/backend/start.ts

@@ -0,0 +1,22 @@
+import dotenv from 'dotenv';
+import path from 'path';
+import { ApiApp } from './ApiApp';
+
+dotenv.config({
+  path: path.resolve(
+    __dirname,
+    `../../../../config/${process.env.NODE_ENV}.env`
+  )
+});
+
+try {
+  new ApiApp().start();
+} catch (e) {
+  console.log(e);
+  process.exit(1);
+}
+
+process.on('uncaughtException', (err) => {
+  console.log('uncaughtException', err);
+  process.exit(1);
+});

src/apps/apiApp/shared/controllers/Controller.ts

@@ -0,0 +1,5 @@
+import { Request, Response } from 'express';
+
+export interface Controller {
+  run(req: Request, res: Response): Promise<void>;
+}

tests/Contexts/api/backEnd/health/infraestructure/getStatus.test.ts

@@ -0,0 +1,25 @@
+import request from 'supertest';
+import { describe, beforeAll, afterAll, it, expect } from '@jest/globals';
+import { ApiApp } from '../../../../../../src/apps/apiApp/backend/ApiApp';
+
+let app: ApiApp;
+
+describe('Health Check Endpoint', () => {
+  beforeAll(async () => {
+    app = new ApiApp();
+    await app.start();
+  });
+
+  afterAll(async () => {
+    await app.stop();
+  });
+
+  it('should return status 200 and "OK"', async () => {
+    const { status, body } = await request(app.httpServer).get(
+      '/api/v1/health/http'
+    );
+
+    expect(status).toBe(200);
+    expect(body).toMatchObject({ status: 'OK' });
+  });
+});

tests/Contexts/api/backEnd/health/unit/getStatusController.test.ts

@@ -0,0 +1,21 @@
+import { Request, Response } from 'express';
+import { GetStatusController } from '../../../../../../src/apps/apiApp/backend/controllers/health/GetStatusController';
+
+describe('GetStatusController', () => {
+  let controller: GetStatusController;
+  let mockResponse: Partial<Response>;
+
+  beforeEach(() => {
+    controller = new GetStatusController();
+    mockResponse = {
+      status: jest.fn().mockReturnThis(),
+      json: jest.fn()
+    };
+  });
+
+  it('should send a status of 200 with the message "OK"', async () => {
+    await controller.run({} as Request, mockResponse as Response);
+    expect(mockResponse.status).toHaveBeenCalledWith(200);
+    expect(mockResponse.json).toHaveBeenCalledWith({ status: 'OK' });
+  });
+});

tests/Contexts/api/backEnd/unit/apiApp.test.ts

@@ -0,0 +1,40 @@
+import { ApiApp } from '../../../../../src/apps/apiApp/backend/ApiApp';
+import { Server } from '../../../../../src/apps/apiApp/backend/server';
+
+describe('ApiApp', () => {
+  let apiApp: ApiApp;
+  const listenSpy = jest.spyOn(Server.prototype, 'listen');
+  const stopSpy = jest.spyOn(Server.prototype, 'stop');
+
+  beforeAll(() => {
+    apiApp = new ApiApp();
+  });
+
+  afterEach(async () => {
+    if (apiApp.httpServer?.listening) {
+      await apiApp.stop();
+    }
+  });
+
+  it('should start the server', async () => {
+    await apiApp.start();
+
+    expect(listenSpy).toHaveBeenCalled();
+  });
+
+  it('should stop the server', async () => {
+    await apiApp.start();
+
+    await apiApp.stop();
+
+    expect(stopSpy).toHaveBeenCalled();
+  });
+
+  it('should return the HTTP server', async () => {
+    await apiApp.start();
+
+    const httpServer = apiApp.httpServer;
+
+    expect(httpServer).toBeDefined();
+  });
+});

tests/apps/apiApp/backend/features/health/getStatus.feature

@@ -0,0 +1,15 @@
+Feature: Api Health Check
+  In order to verify the application's availability
+  As a health check client
+  I want check the API status
+
+  Scenario: Performing a health check
+    Given a GET request to "/api/v1/health/http"
+    Then the response status code should be 200
+    Then the response body should be
+      """
+      {
+        "status": "OK"
+      }
+      """
+

tests/apps/apiApp/backend/features/step_definitions/controller.steps.ts

@@ -0,0 +1,38 @@
+import { AfterAll, BeforeAll, Given, Then } from '@cucumber/cucumber';
+import request from 'supertest';
+import { ApiApp } from '../../../../../../src/apps/apiApp/backend/ApiApp';
+import chai from 'chai';
+
+const expect = chai.expect;
+let _request: request.Test;
+let app: ApiApp;
+
+BeforeAll(async () => {
+  app = new ApiApp();
+  await app.start();
+});
+
+AfterAll(async () => {
+  await app.stop();
+});
+
+Given('a GET request to {string}', (route: string) => {
+  _request = request(app.httpServer).get(route);
+});
+
+Then('the response status code should be {int}', async (status: number) => {
+  const response = await _request;
+  expect(response.status).to.be.equal(status);
+});
+
+Then('the response body should be', async (docString: string) => {
+  const response = await _request;
+  const expectedResponseBody = JSON.parse(docString);
+  expect(response.body).to.deep.equal(expectedResponseBody);
+});
+
+Then('the response body should not be', async (docString: string) => {
+  const response = await _request;
+  const expectedResponseBody = JSON.parse(docString);
+  expect(response.body).to.not.deep.equal(expectedResponseBody);
+});

tsconfig.json

@@ -13,6 +13,6 @@
     "noUnusedLocals": true,
     "outDir": "./dist"
   },
-  "include": ["src/**/**.ts"],
+  "include": ["src/**/*.ts", "tests/**/*.ts"],
   "exclude": ["node_modules"]
 }