86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
import FailBot from '../lib/failbot.js'
|
|
import { nextApp } from './next.js'
|
|
|
|
function shouldLogException(error) {
|
|
const IGNORED_ERRORS = [
|
|
// avoid sending CSRF token errors (from bad-actor POST requests)
|
|
'EBADCSRFTOKEN',
|
|
// Client connected aborted
|
|
'ECONNRESET',
|
|
]
|
|
|
|
if (IGNORED_ERRORS.includes(error.code)) {
|
|
return false
|
|
}
|
|
|
|
// We should log this exception
|
|
return true
|
|
}
|
|
|
|
async function logException(error, req) {
|
|
if (process.env.NODE_ENV !== 'test' && shouldLogException(error)) {
|
|
await FailBot.report(error, {
|
|
path: req.path,
|
|
})
|
|
}
|
|
}
|
|
|
|
export default async function handleError(error, req, res, next) {
|
|
// When you run tests that use things doing get() requests in
|
|
// our supertest handler, if something goes wrong anywhere in the app
|
|
// and its middlewares, you get a 500 but the error is never displayed
|
|
// anywhere. So this is why we log it additionally.
|
|
// Note, not using console.error() because it's arguably handled.
|
|
// Some tests might actually expect a 500 error.
|
|
if (
|
|
process.env.NODE_ENV === 'test' &&
|
|
!(req.path.startsWith('/assets') || req.path.startsWith('/_next/static'))
|
|
) {
|
|
console.warn('An error occurrred in some middleware handler', error)
|
|
}
|
|
|
|
try {
|
|
// If the headers have already been sent or the request was aborted...
|
|
if (res.headersSent || req.aborted) {
|
|
// Report to Failbot
|
|
await logException(error, req)
|
|
|
|
// We MUST delegate to the default Express error handler
|
|
return next(error)
|
|
}
|
|
|
|
if (!req.context) {
|
|
req.context = {}
|
|
}
|
|
// display error on the page in development and staging, but not in production
|
|
if (process.env.HEROKU_PRODUCTION_APP !== 'true') {
|
|
req.context.error = error
|
|
}
|
|
|
|
// Special handling for when a middleware calls `next(404)`
|
|
if (error === 404) {
|
|
return nextApp.render404(req, res)
|
|
}
|
|
|
|
// If the error contains a status code, just send that back. This is usually
|
|
// from a middleware like `express.json()` or `csrf`.
|
|
if (error.statusCode || error.status) {
|
|
return res.sendStatus(error.statusCode || error.status)
|
|
}
|
|
|
|
if (process.env.NODE_ENV !== 'test') {
|
|
console.error('500 error!', req.path)
|
|
console.error(error)
|
|
}
|
|
|
|
res.statusCode = 500
|
|
nextApp.renderError(error, req, res, req.path)
|
|
|
|
// Report to Failbot AFTER responding to the user
|
|
await logException(error, req)
|
|
} catch (error) {
|
|
console.error('An error occurred in the error handling middleware!', error)
|
|
return next(error)
|
|
}
|
|
}
|