Next-auth: Auth0: invalid_request: Missing required parameter: response_type

[vacom]

Describe the bug
The Auth0 provider coming from the build-ins provider is giving a response_type error when trying to authenticate.

To Reproduce
Using the default example from the documentation for the Auth0 Provider

import Providers from `next-auth/providers`
...
providers: [
  Providers.Auth0({
    clientId: process.env.AUTH0_CLIENT_ID,
    clientSecret: process.env.AUTH0_CLIENT_SECRET,
    subdomain: process.env.AUTH0_SUBDOMAIN
  })
}
...

Screenshots or error logs

{
  "date": "2020-06-22T20:03:04.148Z",
  "type": "f",
  "description": "Missing required parameter: response_type",
  "connection_id": "",
  "user_agent": "Chrome 83.0.4103 / Mac OS X 10.15.5",
  "details": {
    "body": {},
    "qs": {
      "redirect_uri": "http://localhost:3000/api/auth/callback/auth0",
      "scope": "openid email profile",
    },
    "error": {
      "message": "Missing required parameter: response_type",
      "oauthError": "invalid_request",
      "type": "request-error"
    }
  },
  "isMobile": false
}

[iaincollins]

Thanks for the bug report!

Hmm we have had a few folks contribute to this but don't have a test for it yet.

If you are able to try providing other options you might be able to suggest a fix. This is what the default options are (you can override any of them): https://github.com/iaincollins/next-auth/blob/main/src/providers/auth0.js

I might need to investigate this one.

[iaincollins]

Will check this out tomorrow, but if anyone is using Auth0 and/or able to test it out themselves would appreciate any feedback / findings!

[iaincollins]

I checked it out myself and found a few bugs in the provider. I've just fixed them, tested it out to verify and published the fix as [email protected] so it should work for you now if you update to the latest version.

Note: The options have changed slightly to bring them into line with other providers and the Auth0 control panel itself, specifically subdomain is now domain.

The changes are reflected in the updated documentation:
https://next-auth.js.org/providers/auth0

[vacom]

@iaincollins thanks for the fix, is working. 🚀