bot/apps/builder/src/pages/_error.tsx

/**
 * NOTE: This requires `@sentry/nextjs` version 7.3.0 or higher.
 *
 * NOTE: If using this with `next` version 12.2.0 or lower, uncomment the
 * penultimate line in `CustomErrorComponent`.
 *
 * This page is loaded by Nextjs:
 *  - on the server, when data-fetching methods throw or reject
 *  - on the client, when `getInitialProps` throws or rejects
 *  - on the client, when a React lifecycle method throws or rejects, and it's
 *    caught by the built-in Nextjs error boundary
 *
 * See:
 *  - https://nextjs.org/docs/basic-features/data-fetching/overview
 *  - https://nextjs.org/docs/api-reference/data-fetching/get-initial-props
 *  - https://reactjs.org/docs/error-boundaries.html
 */

import * as Sentry from '@sentry/nextjs'
import { NextPageContext } from 'next'
import NextErrorComponent from 'next/error'

const CustomErrorComponent = (props: {
  statusCode: number
  hasGetInitialPropsRun: boolean
  err: Error
}) => {
  // If you're using a Nextjs version prior to 12.2.1, uncomment this to
  // compensate for https://github.com/vercel/next.js/issues/8592
  // Sentry.captureUnderscoreErrorException(props);

  return <NextErrorComponent statusCode={props.statusCode} />
}

CustomErrorComponent.getInitialProps = async (contextData: NextPageContext) => {
  // In case this is running in a serverless function, await this in order to give Sentry
  // time to send the error before the lambda exits
  await Sentry.captureUnderscoreErrorException(contextData)

  // This will contain the status code of the response
  return NextErrorComponent.getInitialProps(contextData)
}

export default CustomErrorComponent