nestjs-http-logger

A simple NestJS module that logs incoming requests and responses, including a configurable amount of details. On error, it can log the payload that is sent to the client in the console to make debugging easier.

Building the package

npm run build 

Utilisation

Simply register the HttpLoggerModule that is exported by this package, passing it the desired configuration:

/* ... */
import { HttpLoggerModule } from '@aurelle/nestjs-http-logger';

@Module({
  imports: [
    HttpLoggerModule.forRoot({
      enableRequestDiscriminator: true,
      sensitiveQueryParams: ['apiKey', 'userToken'],
      shouldLogErrorPayload: true,
      logIpAddress: false,
      printConfigOnApplicationStartup: true,
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

Note that none of the options listed above is mandatory. Sane defaults are provided out of the box, so that you can import the module without having to deal with configuration at all.

The list of all the available options is described by the HttpLoggerConfig interface. Here are the defaults:

const defaultConfig: HttpLoggerConfig = {
    sensitiveQueryParams: ['apiKey', 'userToken'],
    enableRequestDiscriminator: false,
    isSensitiveQueryParamCaseSensitive: true,
    logHttpHost: true,
    logIpAddress: true,
    shouldLogErrorPayload: true,
    loggedErrorPayloadMaxSize: '10KB',
    printConfigOnApplicationStartup: false,
    isEnabled: true,
}

Async module registration

You can use the static method HttpModuleLogger.forRootAsync to initialize the configuration asynchronously using Nest's DI system. For example:

/* ... */
import { ConfigModule, ConfigService } from '@nestjs/config';
import { HttpLoggerModule } from '@aurelle/nestjs-http-logger';

@Module({
  imports: [
    ConfigModule.forRoot({
      isGlobal: true,
    }),
    HttpLoggerModule.forRootAsync({
      inject: [ConfigService],
      useFactory: (configService: ConfigService) => {
        return {
          isEnabled: configService.get<string>('ENABLE_HTTP_LOGGER') === 'true',
          logIpAddress: true,
          printConfigOnApplicationStartup: true,
        };
      },
    }),
    ConfigModule,
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}