feat(provider): add Dropbox

[manishrc]

What:

• Add dropbox provider
• Add documentation for dropbox

How:

Add provider similar to other providers.
Since dropbox does not support GET for Profile, conditionally used POST if provider is Dropbox.

Checklist:

• Documentation
• Tests N/A
• Ready to be merged
  

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/nextauthjs/next-auth/4DxPvd7Ko8wGXgCJY3S44Puvvvrx
✅ Preview: https://next-auth-git-fork-manishrc-feat-add-provider-dropb-f4148b.vercel.app

[balazsorban44]

Just a few small comments, otherwise looking good! So I assume you have tested these all locally, right? Currently, we don't have any robust test setup, so we kind of rely on the ones implementing providers that they test it out before committing. 🙈

[michalbundyra]

Just to note here - we need to add the new provider also to types -

next-auth/types/providers.d.ts

Line 56 in 55a2932

export type OAuthProviderType =

(per #1773)
Thanks! :)

[manishrc]

UPDATE: Looks like it was a problem with npm link after the nextjs app was moved to its own folder.
Tested and this now works.

I've made all of the suggested changes. But I'm now seeing the below error after merging main to this branch:

Unhandled Runtime Error

TypeError: Cannot use 'in' operator to search for 'undefined' in null

next-auth/client/index.js (166:16) @ _callee7$

  164 | 
  165 |   // Redirect to sign in page if no valid provider specified
> 166 |   if (!(provider in providers)) {
      |                ^
  167 |     // If Provider not recognized, redirect to sign in page
  168 |     window.location = `${baseUrl}/signin?callbackUrl=${encodeURIComponent(callbackUrl)}`
  169 |     return

Call Stack

tryCatch
node_modules/regenerator-runtime/runtime.js (63:14)
Generator.invoke [as _invoke]
node_modules/regenerator-runtime/runtime.js (293:0)
Generator.eval [as next]
node_modules/regenerator-runtime/runtime.js (118:0)
asyncGeneratorStep
node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js (3:0)
_next
node_modules/@babel/runtime/helpers/esm/asyncToGenerator.js (25:0)