add typorm with postgres

src/app.module.ts

@@ -1,10 +1,35 @@
 import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+
+
+const moduleTypeOrm = TypeOrmModule.forRootAsync({
+  imports: [ConfigModule],
+  inject: [ConfigService],
+  useFactory: (configService: ConfigService) => {
+    return {
+      type:   'postgres',
+      host: configService.get<string>('DATABASE_HOST'),
+      port: parseInt(configService.get<string>('DATABASE_PORT') as string,10),
+      username: configService.get<string>('DATABASE_USER'),
+      password: configService.get<string>('DATABASE_PASS'),
+      database: configService.get<string>('DATABASE_NAME'),
+      entities: [],
+      // synchronize: true,
+    };
+  },
+
+});
 
 @Module({
-  imports: [],
+  imports: [
+    ConfigModule.forRoot(),
+    moduleTypeOrm
+  ],
   controllers: [AppController],
   providers: [AppService],
 })
-export class AppModule {}
+export class AppModule {
+}