Pretty ErrorHandler 😫, Stack Viewer for Nestjs Framework 🛠️

it's just a simple Filter for Catching the Errors

Features

1. HTML reporter

2. JSON reporter, if request accepts a json instead of text/html.

3. Sorted frames of error stack.

4. Themes

Dark Theme

Light Theme

Install

npm install nestjs-flub --save

Simple Usage

Just add this filter as you would any filter:

import { FlubErrorHandler } from 'nestjs-flub';
@Controller('cats')
@UseFilters(new FlubErrorHandler())
export class CatsController { 

@Get('/error')
  throwError() {
    throw new Error('Very Bad Error');
  }
}

Configuration

FlubErrorHandler accepts an optional object to configure the Error Handler. For now, it only has two Options:

theme: string; // for themes ['dark', 'light', 'default']
quote: boolean; // for displaying  very good quotes

example

@UseFilters(new FlubErrorHandler({ theme: 'dark', quote:true }))

Theming

copy /src/themes/error.default.mustache and play

TODO

• [ ] Write Tests
• [ ] list syntax required

Contributing

You are welcome to contribute to this project. If you want to add new themes, make a new PR containing the theme and a simple image to represent it

Global filters

Use flub error handler for all controllers

async function bootstrap() {
  const app = await NestFactory.create(ApplicationModule);
  app.useGlobalFilters(new FlubErrorHandler());
  await app.listen(3000);
}
bootstrap();