implementation of env

src/app.module.ts

@@ -1,16 +1,18 @@
 import { Module } from "@nestjs/common";
 import { NotificationModule } from "./notifications/notification.mudule";
 import { SequelizeModule } from "@nestjs/sequelize";
+import { ConfigModule } from "@nestjs/config";
 
 @Module({
   imports: [
+    ConfigModule.forRoot(),
     SequelizeModule.forRoot({
       dialect: "mysql",
-      host: "localhost",
-      port: 3306,
-      username: "root",
-      password: "",
-      database: "notification_db",
+      host: process.env.DB_HOST,
+      port: parseInt(process.env.DB_PORT),
+      username: process.env.DB_USERNAME,
+      password: process.env.DB_PASSWORD,
+      database: process.env.DB_NAME,
       autoLoadModels: true,
       synchronize: true,
     }),

src/main.ts

@@ -7,7 +7,7 @@ async function bootstrap() {
   const app = await NestFactory.create(AppModule);
   app.useGlobalPipes(new ValidationPipe());
   app.useWebSocketAdapter(new IoAdapter(app));
-  await app.listen(3001);
+  await app.listen(parseInt(process.env.PORT));
 }
 
 bootstrap();