Package Exports

body-parser-ext

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (body-parser-ext) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

body-parser-ext

npm

An extended version of body-parser middleware with additional error handling using VEerror

Extended error handling

ERR_BODY_PARSE_JSON
ERR_PAYLOAD_TOO_LARGE

Installation

npm i -S body-parser-ext

Usage

As well as body-parser

Javascript example

'use strict';

const express = require('express');
const bodyParser = require('body-parser-ext');

const PORT = 3000;
const app = express();

// Parse application/json
app.use(bodyParser.json());

// Sample middleware
app.get('/', (req, res) => {
  res.status(200).json(req.body);
});

// Other middlewares

// The catch 404 error handler
app.use((_, res) => {
  res.status(404).end();
});

// The 'catch-all' error handler
app.use((err, _, res, __) => {
  // Bad request
  if (err.name === bodyParser.ERR_BODY_PARSE_JSON) {
    console.log(bodyParser.ERR_BODY_PARSE_JSON);
    return res.status(400).end();
  }

  // Payload too large
  if (err.name === bodyParser.ERR_PAYLOAD_TOO_LARGE) {
    console.log(bodyParser.ERR_PAYLOAD_TOO_LARGE);
    return res.status(413).end();
  }

  // Unexpected error
  console.log('unexpected error');
  res.status(500).end();
});

// Start server
app.listen(PORT, () => console.log(`Example app listening on port ${PORT}`));

Typescript example

import express from 'express';
import bodyParser from 'body-parser-ext';

const PORT = 3000;
const app = express();

// Parse application/json
app.use(bodyParser.json());

// Sample middleware
app.get('/', (req: express.Request, res: express.Response) => {
  res.status(200).json(req.body);
});

// Other middlewares

// The catch 404 error handler
app.use((_: express.Request, res: express.Response) => {
  res.status(404).end();
});

// The 'catch-all' error handler
app.use(
  (
    err: any,
    _: express.Request,
    res: express.Response,
    __: express.NextFunction
  ) => {
    // Bad request
    if (err.name === bodyParser.ERR_BODY_PARSE_JSON) {
      console.log(bodyParser.ERR_BODY_PARSE_JSON);
      return res.status(400).end();
    }

    // Payload too large
    if (err.name === bodyParser.ERR_PAYLOAD_TOO_LARGE) {
      console.log(bodyParser.ERR_PAYLOAD_TOO_LARGE);
      return res.status(413).end();
    }

    // Unexpected error
    console.log('unexpected error');
    res.status(500).end();
  }
);

// Start server
app.listen(PORT, () => console.log(`Example app listening on port ${PORT}`));

License

MIT