init

costly-api/src/database/database.module.ts

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+import { Module } from '@nestjs/common';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { GroupEntity } from '../groups/persistence/group.entity';
+
+const ENTITY = [GroupEntity]
+
+@Module({
+  imports: [
+    
+    TypeOrmModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: (configService: ConfigService) => ({
+          type: 'mysql',
+          host: configService.get('DATABASE_HOST') || 'localhost',
+          port: parseInt(configService.get('DATABASE_PORT') || '0'),
+          username: configService.get('DATABASE_USER'),
+          password: configService.get('DATABASE_PASSWORD'),
+          database: configService.get('DATABASE_NAME'),
+          entities: ENTITY,
+          synchronize: true,
+      })
+    })
+  ],
+  providers: [ConfigService,],
+  exports: [TypeOrmModule]
+    
+})
+export class DatabaseModule {}