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Rollbar Module for NestJS

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More NestJS libs on alariblog.ru

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NestJS Rollbar package allows you to extend standard Logger to send errors directly to Rollbar. Usage if quite simple. Get Rollbar Token from your project page and install nestjs-rollbar package:

npm i nestjs-rollbar

Then register module in your root app.module

import { LoggerModule } from 'nestjs-rollbar';

@Module({
	imports: [
		// ...
		LoggerModule.forRoot({
			accessToken: configService.get('ROLLBAR_TOKEN'),
			environment: configService.get('ENVIRONMENT'),
		}),
	],
})
export class AppModule {}

forRoot method uses RollBar NodeJS configuration interface

Or, using forRootAsync:

import { ConfigModule, ConfigService } from '@nestjs/config';
import { LoggerModule } from 'nestjs-rollbar';

@Module({
	imports: [
		// ...
	        LoggerModule.forRootAsync({
	            imports: [ConfigModule],
	            inject: [ConfigService],
	            useFactory: (configService: ConfigService) => ({
	                accessToken: configService.get('ROLLBAR_TOKEN'),
	                environment: configService.get('ENVIRONMENT'),
	            }),
	        }),
	],
})
export class AppModule {}
export interface Configuration {
        accessToken?: string;
        version?: string;
        environment?: string;
        codeVersion?: string;
        code_version?: string;
        scrubFields?: string[];
        overwriteScrubFields?: boolean;
        scrubHeaders?: string[];
        logLevel?: Level;
        reportLevel?: Level;
        uncaughtErrorLevel?: Level;
        endpoint?: string;
        verbose?: boolean;
        enabled?: boolean;
        captureUncaught?: boolean;
        captureUnhandledRejections?: boolean;
        payload?: object;
        maxItems?: number;
        itemsPerMinute?: number;
        ignoredMessages?: string[];
        hostWhiteList?: string[];
        hostBlackList?: string[];
        filterTelemetry?: (e: TelemetryEvent) => boolean;
        autoInstrument?: AutoInstrumentOptions;
        maxTelemetryEvents?: number;
        telemetryScrubber?: TelemetryScrubber;
        includeItemsInTelemetry?: boolean;
        scrubTelemetryInputs?: boolean;
        sendConfig?: boolean;
        captureEmail?: boolean;
        captureUsername?: boolean;
        captureIp?: boolean | "anonymize";
        captureLambdaTimeouts?: boolean;
        transform?: (data: object) => void;
        checkIgnore?: (isUncaught: boolean, args: LogArgument[], item: object) => boolean;
        onSendCallback?: (isUncaught: boolean, args: LogArgument[], item: object) => void;
    }

To use RollbarLogger in any service or controller just inject it in constructor:

import { RollbarLogger } from 'nestjs-rollbar';

constructor(
		private readonly rollbarLogger: RollbarLogger
	) {}

To log an error to Rollbar just call error() method:

try {
	throw new Error('Test error');
} catch (error) {
	this.rollbarLogger.error(error, 'myMethod');
}

First parameter is an error object and the second - name of your method to show in logs.

RollbarHandler decorator

If you want to automatically log error in controller or services method you can use RollbarHandler decorator.

@Injectable()
export class AppService {

  @RollbarHandler()
  getHello() {
    throw new Error('asda');
  }
}

It will catch all errors in method and send them directly to Rollbar and print them in console. If you want to customize error name, pass it to decorator:

@RollbarHandler({
   errorName: 'My error name',
})

To rethrow error to another decorator:

@RollbarHandler({
   rethrow: true,
})