How to increase the payload size for probot routes?

[ggenzone]

Due to the size of some commit messages (36Kb), the entire payload exceeds the limit allowed by default.

I would like to be able to do the following:

express.use(bodyParser.urlencoded({ extended: true, limit: '5mb' }))

the problem is that i don't have access to the express server that probot uses.

Use Server explicit

I tried to use the server explicitly and run it with node ./lib/main.js but the exact same thing happens.

import { Server, Probot } from 'probot'
import express from 'express'
import { getPrivateKey } from '@probot/get-private-key'
import bodyParser from 'body-parser'

require('dotenv').config()

/**
 * export default async (app: Probot, { getRouter }: ApplicationFunctionOptions ) => { ... }
 */
import app from './index'

async function startServer () {
  console.log('creating server with custom values')
  const server = new Server({
    Probot: Probot.defaults({
      appId: process.env.APP_ID,
      privateKey: getPrivateKey(),
      secret: process.env.WEBHOOK_SECRET
    }),
    port: 8081
  })

  console.log('increasing payload limit')
  server.expressApp.use(express.json({ limit: '5mb' }))
  server.expressApp.use(express.urlencoded({ limit: '5mb' }))
  server.expressApp.use(bodyParser.json({ limit: '5mb' }))
  server.expressApp.use(bodyParser.urlencoded({ extended: true, limit: '5mb' }))

  console.log('Loading server ... ')
  await server.load(app)

  return server
}

startServer().then(serv => {
  console.log('Starting server ... ')
  serv.start()
  console.log('After starting server ... ')
}).catch((e) => {
  console.log('Server error')
  console.log(e)
}).finally(() => {
  console.log('Finishing server ... ')
})

Any ideas?

Thank you for your answers and suggestions.

[AaronDewes]

I'm not 100% sure, but I think you're debugging the wrong issue. You are making an outgoing request that is too large, it seems to handle the payloads just fine.

[ggenzone]

You are 100% correct, after a long time I realized that indeed the 422 was for an outgoing request. My apologies