TypeOrm in nestjs can not connect to MongoDB-CodePudding

I install the mongodb software on my own Ubuntu server and I get the mongo string just like this mongodb://xxx:[email protected]:27017,when I type this string in my local terminal and use mongosh mongodb://xxx:[email protected]:27017, it works fine and the connection is success. But when I use this mongodb string in my nestjs project, when I run npm run start, the terminal output MongoServerError: Authentication failed.

app.module.ts

TypeOrmModule.forRootAsync({
      imports: [ConfigModule],
      inject: [ConfigService],
      useFactory: async (configService: ConfigService) => {
        const username = configService.get('MONGO_USER');
        const password = configService.get('MONGO_PASS');
        const database = configService.get('MONGO_DATABASE');
        const host = configService.get('MONGO_HOST');
        const port = configService.get('MONGO_PORT');
        return {
          type: 'mongodb',
          host,
          port,
          username,
          password,
          database,
          entities: [__dirname   '/**/*.entity{.ts,.js}'],
          synchronize: true,
        };
      },

The mongodb version is 4.1.3, TypeOrm version is 0.2.38. Does anyone know what is the problem and how to solve it? Thank u.

CodePudding user response：

Maybe you should try to use the Database URL connection string instead of host, port, username, password, ...

So instead of using this

return {
    type: 'mongodb',
    host,
    port,
    username,
    password,
    database,
    entities: ...
    ...
}

you should use this

return {
    type: "mongodb",
    url: configService.get("DATABASE_URL"),
    entities: ...
    ...
}

CodePudding user response：

I have figure out what the problem is, as the authSource of my mongodb is not the same one with the database to save data. So I should set the authSource option to admin, then it works.

return {
      type: 'mongodb',
      host,
      port,
      username,
      password,
      database,
      authSource: 'admin',
      entities: [__dirname   '/**/*.entity{.ts,.js}'],
      synchronize: true,
    };