Express-Exception

Express exception is an plug-and-play package for handling HTTP exceptions in your express application. It is very easy to install and use. It will provide you with next level of exceptions handling in a seamless way.

Installation

Use the yarn or npm to install express-exception.

1npm install express-exception

or

1yarn add express-exception

Usage

1import express from 'express';
2import expressException from 'express-exception';
3
4const app = express();
5
6app.use(express.json());
7//rest of your middlewares or routes
8
9//set express-exception to handle your exceptions
10expressException.setHandler(app);
11
12app.listen(3000, ()=>{
13console.log(`Application started on port ${3000}`);
14}

Example Implementation

1import express, { Request, Response } from 'express';
2import ee, { CustomHttpException, InternalServerErrorException, NotFoundException } from 'express-exception';
3
4const app = express();
5
6app.use(express.json())
7
8app.get('/', (_req: Request, _res: Response) => {
9  //custom exception from 'express-exception'
10  throw new CustomHttpException('Custom Error Message', 500)
11})
12
13app.get('/404', (_req: Request, _res: Response) => {
14  //not found exception from 'express-exception'
15  throw new NotFoundException()
16})
17
18app.get('/500', (_req: Request, _res: Response) => {
19  //server error from 'express-exception'
20  throw new InternalServerErrorException()
21})
22
23app.get('/other', (_req: Request, _res: Response) => {
24  //some other Unhandled error that 'express-exception' will handle
25  throw new Error('Some other Unhandled Error')
26})
27
28ee.setHandler(app)
29app.listen(5000, () => {
30  console.log('App started listening on port 5000')
31})
32