feat: added .env configuration for global app, database and jwt

Refs: #2

src/app.module.ts

@@ -1,9 +1,26 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
+import appConfig from './config/app.config';
+import databaseConfig from './config/database.config';
+import jwtConfig from './config/jwt.config';
+import { configValidationSchema } from './config/validation.schema';
+
 @Module({
-  imports: [],
+  imports: [
+    ConfigModule.forRoot({
+      // Gestion dynamique des fichiers .env
+      envFilePath: [`.env.${process.env.NODE_ENV || 'development'}`, '.env'],
+
+      // Chargement de configurations typées
+      load: [appConfig, databaseConfig, jwtConfig],
+
+      isGlobal: true,
+      validationSchema: configValidationSchema,
+    }),
+  ],
   controllers: [AppController],
   providers: [AppService],
 })

src/config/app.config.ts

@@ -0,0 +1,6 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('', () => ({
+  port: process.env.PORT,
+  env: process.env.NODE_ENV,
+}));

src/config/database.config.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('database', () => ({
+  host: process.env.POSTGRES_HOST,
+  port: process.env.POSTGRES_PORT,
+  username: process.env.POSTGRES_USER,
+  password: process.env.POSTGRES_PASSWORD,
+  database: process.env.POSTGRES_DB,
+}));

src/config/jwt.config.ts

@@ -0,0 +1,6 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('jwt', () => ({
+  secret: process.env.JWT_SECRET,
+  expiresIn: process.env.JWT_EXPIRATION_TIME,
+}));

src/config/validation.schema.ts

@@ -0,0 +1,19 @@
+import * as Joi from 'joi';
+
+export const configValidationSchema = Joi.object({
+  NODE_ENV: Joi.string()
+    .valid('development', 'production', 'test')
+    .default('development'),
+  PORT: Joi.number().optional(),
+
+  // Base de données
+  POSTGRES_HOST: Joi.string().required(),
+  POSTGRES_PORT: Joi.number().required(),
+  POSTGRES_USER: Joi.string().required(),
+  POSTGRES_PASSWORD: Joi.string().required(),
+  POSTGRES_DB: Joi.string().required(),
+
+  // JWT
+  JWT_SECRET: Joi.string().required(),
+  JWT_EXPIRATION_TIME: Joi.string().required(),
+});

src/main.ts

@@ -1,8 +1,18 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
+import { ConfigService } from '@nestjs/config';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(process.env.PORT ?? 3000);
+
+  const configService = app.get(ConfigService);
+
+  const port = configService.get<number>('app.port', 3000);
+  await app.listen(port);
+  console.log(`✅ P'titsPas API is running on: ${await app.getUrl()}`);
 }
-bootstrap();
+
+bootstrap().catch((err) => {
+  console.error('❌ Error starting the application:', err);
+  process.exit(1);
+});