I do something like this in express to log mongodb connection events.
mongoose
.connect(process.env.DATABASE, {
useNewUrlParser: true,
useFindAndModify: false
})
.then(() => console.log('connect to DB successfully :)'));
mongoose.connection.on('error', err => {
console.log('DB connection failed');
});
mongoose.connection.on('disconnected', () => {
console.log('DB disconnected');
});
mongoose.connection.on('reconnected', () => {
console.log('DB reconnected');
});
I want something like that in Nest js but I can't do that. here is my nest js code to connect to mongodb.
import { Module } from '@nestjs/common';
import { ConfigModule, ConfigService } from '@nestjs/config';
import { MongooseModule } from '@nestjs/mongoose';
import { AppController } from './app.controller';
import { AppService } from './app.service';
@Module({
controllers: [AppController],
providers: [AppService],
imports: [
MongooseModule.forRootAsync({
imports: [ConfigModule],
useFactory: async (configService: ConfigService) => ({
uri: configService.get<string>('dbConnectionString'),
user: configService.get<string>('DB_USER'),
pass: configService.get<string>('DB_PASS')
}),
inject: [ConfigService]
})
]
})
export class AppModule {}
You can monitor NestJS mongodb connection inside of your app.module.ts
file while connecting mongodb by url.
MongooseModule.forRoot(dbURL, {
connectionFactory: (connection) => {
connection.on('connected', () => {
console.log('is connected');
});
connection._events.connected();
return connection;
},
},
),