Add base code for question service (#17)

Author: Jajared

backend/gateway-service/src/app.controller.ts

@@ -1,7 +1,9 @@
 import { Module } from '@nestjs/common';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
 import { ClientsModule, Transport } from '@nestjs/microservices';
+import { UserController } from './user/user.controller';
+import { UserService } from './user/user.service';
+import { QuestionService } from './question/question.service';
+import { QuestionController } from './question/questions.controller';
 
 @Module({
   imports: [
@@ -11,12 +13,20 @@ import { ClientsModule, Transport } from '@nestjs/microservices';
         transport: Transport.TCP,
         options: {
           host: '127.0.0.1',
-          port: 3001,  // Ensure the port matches the event producer
+          port: 3001,
+        },
+      },
+      {
+        name: 'QUESTION_SERVICE',
+        transport: Transport.TCP,
+        options: {
+          host: '127.0.0.1',
+          port: 3002,
         },
       },
     ]),
   ],
-  controllers: [AppController],
-  providers: [AppService],
+  controllers: [UserController, QuestionController],
+  providers: [UserService, QuestionService],
 })
 export class AppModule {}

backend/gateway-service/src/app.module.ts

@@ -0,0 +1,17 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { ClientProxy } from '@nestjs/microservices';
+
+@Injectable()
+export class QuestionService {
+  constructor(
+    @Inject('QUESTION_SERVICE') private readonly questionClient: ClientProxy,
+  ) {}
+
+  getHello(): string {
+    return 'This is the questions service!';
+  }
+
+  getQuestions() {
+    return this.questionClient.send({ cmd: 'get_questions' }, {});
+  }
+}

backend/gateway-service/src/question/question.service.ts

@@ -0,0 +1,17 @@
+import { Body, Controller, Get, Post } from '@nestjs/common';
+import { QuestionService } from './question.service';
+
+@Controller('question')
+export class QuestionController {
+  constructor(private readonly questionService: QuestionService) {}
+
+  @Get()
+  getHello(): string {
+    return this.questionService.getHello();
+  }
+
+  @Get('questions')
+  getQuestions() {
+    return this.questionService.getQuestions();
+  }
+}

backend/gateway-service/src/question/questions.controller.ts

@@ -0,0 +1,18 @@
+import { Body, Controller, Get, Post } from '@nestjs/common';
+import { CreateUserDto } from './dto/create-user.dto';
+import { UserService } from './user.service';
+
+@Controller('user')
+export class UserController {
+  constructor(private readonly userService: UserService) {}
+
+  @Get()
+  getHello(): string {
+    return this.userService.getHello();
+  }
+
+  @Post()
+  createUser(@Body() createUserDto: CreateUserDto) {
+    return this.userService.createUser(createUserDto);
+  }
+}

backend/gateway-service/src/dto/create-user.dto.ts renamed to backend/gateway-service/src/user/dto/create-user.dto.ts

@@ -3,14 +3,13 @@ import { ClientProxy } from '@nestjs/microservices';
 import { CreateUserDto } from './dto/create-user.dto';
 
 @Injectable()
-export class AppService {
-
+export class UserService {
   constructor(
     @Inject('USER_SERVICE') private readonly userClient: ClientProxy,
   ) {}
 
   getHello(): string {
-    return 'Hello World!';
+    return 'This is the user service!';
   }
 
   createUser(createUserDto: CreateUserDto) {

backend/gateway-service/src/events/create-user.event.ts renamed to backend/gateway-service/src/user/events/create-user.event.ts

@@ -0,0 +1,25 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    tsconfigRootDir: __dirname,
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

backend/gateway-service/src/user/user.controller.ts

@@ -0,0 +1,56 @@
+# compiled output
+/dist
+/node_modules
+/build
+
+# Logs
+logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# temp directory
+.temp
+.tmp
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json