Question upload file after proxy

[Irenedan]

I try to use the form-data in the body to upload file, but it looks like that I can't get my req information after proxy

[Irenedan]

@monkpow Hello, Does express-http-proxy support multipart form data and file uploads? Is anyone working on it?

[microMerchine]

@Irenedan fixed it ?

[bytadaniel]

Hi there! Yeah, this really need to be fixed

[bytadaniel]

@microMerchine @Irenedan I have found out how to fix this.
Thanks to btmurrel in this issue #127

import dotenv from 'dotenv'
import cors from 'cors'
import default_proxy from 'express-http-proxy'
import express, { NextFunction, Request, Response } from 'express'

dotenv.config()

const app = express()

app.use((req, _res, next) => next(console.log(req.method, req.url)))
app.use(cors())
app.use(express.json())
app.use(express.urlencoded({ extended: true }))

const isMultipartRequest = function (req: Request) {
  const contentTypeHeader = req.headers['content-type']
  return contentTypeHeader && contentTypeHeader.indexOf('multipart') > -1
}

const proxy = function (host: string) {
  return function (req: Request, res: Response, next: NextFunction) {
    let reqBodyEncoding
    let reqAsBuffer = false
    let parseReqBody = true

    if (isMultipartRequest(req)) {
      reqAsBuffer = true
      reqBodyEncoding = null
      parseReqBody = false
    }
    return default_proxy(host, {
      reqAsBuffer,
      reqBodyEncoding,
      parseReqBody
    })(req, res, next)
  }
}

app.all(/widget/, proxy('localhost:3002'))
app.all('*', proxy('localhost:3001'))

app.get('/healthcheck', (_req, res) => res.sendStatus(200))

app.listen(process.env.PORT, () => console.log(`Listen -> http://localhost:${process.env.PORT}`))

[Xavier577]

@microMerchine @Irenedan I have found out how to fix this. Thanks to btmurrel in this issue #127

import dotenv from 'dotenv'
import cors from 'cors'
import default_proxy from 'express-http-proxy'
import express, { NextFunction, Request, Response } from 'express'

dotenv.config()

const app = express()

app.use((req, _res, next) => next(console.log(req.method, req.url)))
app.use(cors())
app.use(express.json())
app.use(express.urlencoded({ extended: true }))

const isMultipartRequest = function (req: Request) {
  const contentTypeHeader = req.headers['content-type']
  return contentTypeHeader && contentTypeHeader.indexOf('multipart') > -1
}

const proxy = function (host: string) {
  return function (req: Request, res: Response, next: NextFunction) {
    let reqBodyEncoding
    let reqAsBuffer = false
    let parseReqBody = true

    if (isMultipartRequest(req)) {
      reqAsBuffer = true
      reqBodyEncoding = null
      parseReqBody = false
    }
    return default_proxy(host, {
      reqAsBuffer,
      reqBodyEncoding,
      parseReqBody
    })(req, res, next)
  }
}

app.all(/widget/, proxy('localhost:3002'))
app.all('*', proxy('localhost:3001'))

app.get('/healthcheck', (_req, res) => res.sendStatus(200))

app.listen(process.env.PORT, () => console.log(`Listen -> http://localhost:${process.env.PORT}`))

Thank you very much for this helped me fixed my issues without moving away from express-http-proxy