Cannot use import statement outside a module

시작

TypeOrm을 NestJs에 적용중 Cannot use import statement outside a module 가 발생되었다.

원인

• TypeOrm설정중 Entites의 설정이 오류가 있었다.

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TypeOrmModule } from '@nestjs/typeorm';
import { config } from './config/config';
import { PostModule } from './post/post.module';
import { ConfigModule } from '@nestjs/config';

  @Module({
    imports: [
      ConfigModule.forRoot({
        isGlobal: true,
        envFilePath: '.env',
      }),

      TypeOrmModule.forRoot({
        type: 'postgres',
        host: process.env.DATABASE_URL,
        port: parseInt(process.env.DATABASE_PORT, 10),
        username: process.env.DATABASE_USER,
        password: process.env.DATABASE_PASSWORD,
        database: process.env.DATABASE_NAME,
        entities: [__dirname + '/../**/*.entity{.ts,.js}'], <-- 오류 부분
        synchronize: false,
      }),
      PostModule,
    ],
    controllers: [AppController],
    providers: [AppService],
  })
  export class AppModule {}

해결

1. entities설정을 객체로 지정한다.

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TypeOrmModule } from '@nestjs/typeorm';
import { config } from './config/config';
import { PostModule } from './post/post.module';
import { ConfigModule } from '@nestjs/config';
import { Post } from './post/entities/post.entity'; <-- 추가

@Module({
  imports: [
    ConfigModule.forRoot({
      isGlobal: true,
      envFilePath: '.env',
    }),

    TypeOrmModule.forRoot({
      type: 'postgres',
      host: process.env.DATABASE_URL,
      port: parseInt(process.env.DATABASE_PORT, 10),
      username: process.env.DATABASE_USER,
      password: process.env.DATABASE_PASSWORD,
      database: process.env.DATABASE_NAME,
      entities: [Post], <-- 수정
      synchronize: false,
    }),
    PostModule,
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

2. entities설정의 경로를 변경한다.

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TypeOrmModule } from '@nestjs/typeorm';
import { config } from './config/config';
import { PostModule } from './post/post.module';
import { ConfigModule } from '@nestjs/config';

  @Module({
    imports: [
      ConfigModule.forRoot({
        isGlobal: true,
        envFilePath: '.env',
      }),

      TypeOrmModule.forRoot({
        type: 'postgres',
        host: process.env.DATABASE_URL,
        port: parseInt(process.env.DATABASE_PORT, 10),
        username: process.env.DATABASE_USER,
        password: process.env.DATABASE_PASSWORD,
        database: process.env.DATABASE_NAME,
        entities: ['dist/**/*.entity{.ts,.js}'], <-- 수정
        synchronize: false,
      }),
      PostModule,
    ],
    controllers: [AppController],
    providers: [AppService],
  })
  export class AppModule {}