Production deployment may encounter issues as crypto/webcrypto is not defined

When working with a Next.js API route, I start by importing webcrypto like this:

import { webcrypto } from 'crypto'

Later on, I utilize it in the following manner:

const random = webcrypto.getRandomValues(new Uint8Array(8))

While testing on localhost everything works smoothly. However, upon deploying to production (on Vercel), an error crops up:

ERROR   [next-auth][error][SIGNIN_EMAIL_ERROR] 
https://next-auth.js.org/errors#signin_email_error Cannot read property 'getRandomValues' of undefined {
  error: {
    message: "Cannot read property 'getRandomValues' of undefined",
    stack: "TypeError: Cannot read property 'getRandomValues' of undefined\n" +
      '    at Object.generateVerificationToken (/var/task/.next/server/chunks/696.js:97:78)\n' +
      '    at email (/var/task/node_modules/next-auth/core/lib/email/signin.js:22:188)\n' +
      '    at Object.signin (/var/task/node_modules/next-auth/core/routes/signin.js:117:50)\n' +
      '    at processTicksAndRejections (internal/process/task_queues.js:95:5)\n' +
      '    at async NextAuthHandler (/var/task/node_modules/next-auth/core/index.js:238:26)\n' +
      '    at async NextAuthNextHandler (/var/task/node_modules/next-auth/next/index.js:23:19)\n' +
      '    at async /var/task/node_modules/next-auth/next/index.js:59:32\n' +
      '    at async Object.apiResolver (/var/task/node_modules/next/dist/server/api-utils/node.js:182:9)\n' +
      '    at async NextNodeServer.runApi (/var/task/node_modules/next/dist/server/next-server.js:386:9)\n' +
      '    at async Object.fn (/var/task/node_modules/next/dist/server/base-server.js:488:37)',
    name: 'TypeError'
  },
  providerId: 'email',
  message: "Cannot read property 'getRandomValues' of undefined"
}

The crux of the issue lies in this detail:

message: "Cannot read property 'getRandomValues' of undefined"

Why does this functionality fail upon deployment, yet perform flawlessly on localhost? How can I rectify this discrepancy?

It's worth noting that the deployment employs https

javascriptnext.jswebcrypto-api

Answer №1

Based on the information provided, it seems that in a production environment, the Node version is likely to be lower than 15.0.0. This assumption is made considering the compatibility of a certain method as indicated in the link.

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