Currently I'm learning nestjs, and when I'm trying to connect my nestjs to mongodb, I got a problem like this.
// app.module.ts
@Module({
imports: [
ConfigModule.forRoot({ isGlobal: true }),
MongooseModule.forRootAsync({
imports: [ConfigModule],
inject: [ConfigService],
useFactory: async (config: ConfigService) => {
const uri = util.format(
`mongodb://%s:%s@%s:%d/%s`,
config.get('DB_USERNAME'),
config.get('DB_PASSWORD'),
config.get('DB_HOST'),
config.get('DB_PORT'),
config.get('DB_NAME'),
)
console.log(uri)
return {
uri,
}
},
}),
UsersModule
],
controllers: [
AppController
],
providers: [
AppService
],
})
export class AppModule { }
the log of the uri is mongodb://username:password@localhost:27017/the-db
but I always got error
[Nest] 25887 - 11/18/2023, 2:24:05 PM ERROR [MongooseModule] Unable to connect to the database.
or the full log of the program is like this
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [NestFactory] Starting Nest application...
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [InstanceLoader] MongooseModule dependencies initialized +35ms
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [InstanceLoader] ConfigHostModule dependencies initialized +1ms
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [InstanceLoader] AppModule dependencies initialized +0ms
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [InstanceLoader] ConfigModule dependencies initialized +1ms
[Nest] 25887 - 11/18/2023, 2:24:05 PM LOG [InstanceLoader] ConfigModule dependencies initialized +0ms
mongodb://username:password@localhost:27017/the-db
[Nest] 25887 - 11/18/2023, 2:24:05 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (1)...
[Nest] 25887 - 11/18/2023, 2:24:08 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (2)...
[Nest] 25887 - 11/18/2023, 2:24:11 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (3)...
[Nest] 25887 - 11/18/2023, 2:24:14 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (4)...
[Nest] 25887 - 11/18/2023, 2:24:17 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (5)...
[Nest] 25887 - 11/18/2023, 2:24:20 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (6)...
[Nest] 25887 - 11/18/2023, 2:24:23 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (7)...
[Nest] 25887 - 11/18/2023, 2:24:26 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (8)...
[Nest] 25887 - 11/18/2023, 2:24:29 PM ERROR [MongooseModule] Unable to connect to the database. Retrying (9)...
[Nest] 25887 - 11/18/2023, 2:24:30 PM ERROR [ExceptionHandler] Authentication failed.
MongoServerError: Authentication failed.
at Connection.onMessage (/home/damian/projects/youapp/youapp/node_modules/.pnpm/[email protected]/node_modules/mongodb/src/cmap/connection.ts:409:18)
at MessageStream.<anonymous> (/home/damian/projects/youapp/youapp/node_modules/.pnpm/[email protected]/node_modules/mongodb/src/cmap/connection.ts:239:56)
at MessageStream.emit (node:events:513:28)
at processIncomingData (/home/damian/projects/youapp/youapp/node_modules/.pnpm/[email protected]/node_modules/mongodb/src/cmap/message_stream.ts:193:12)
at MessageStream._write (/home/damian/projects/youapp/youapp/node_modules/.pnpm/[email protected]/node_modules/mongodb/src/cmap/message_stream.ts:74:5)
at writeOrBuffer (node:internal/streams/writable:392:12)
at _write (node:internal/streams/writable:333:10)
at MessageStream.Writable.write (node:internal/streams/writable:337:10)
at Socket.ondata (node:internal/streams/readable:766:22)
at Socket.emit (node:events:513:28)
I got authentication failed in the end, so I try to connect the same credentials with the basic nodejs application, and it was connected properly without any error and I could persist data.
?directConnection=true to the uri but still nothing changedcan somebody tell me what's going on here?:(
edit:
for your information I'm using
you should set authSource: 'admin' also in MongoDB URI mongodb://{{username}}:{{password}}@localhost:27017/{{db_name}}?authSource=admin