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arcade's avatar
arcade
New member | Level 2
4 months ago

Getting {"error": "invalid_grant", "error_description": "invalid code verifier"}

I'm using PKCE flow https://www.dropbox.com/developers/documentation/http/documentation#oauth2-token in my react native expo app for generating the token. I'm able to generate code & state value su...
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DB-Des's avatar
DB-Des
Icon for Dropbox Community Moderator rankDropbox Community Moderator
4 months ago

Hi arcade​ 

When you use the official Dropbox JavaScript SDK, you do not need to implement all of the logic for this process yourself. The SDK will do most of the work for you. You can find examples of using this here.  More specifically, you can find an example of implementing PKCE on the back end here: https://github.com/dropbox/dropbox-sdk-js/blob/main/examples/javascript/PKCE-backend/code_flow_example.js or the front end here: https://github.com/dropbox/dropbox-sdk-js/tree/main/examples/javascript/pkce-browser 

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