dropbox get refresh token

Shows how to get a Dropbox refresh token using offline access so an app can renew access without asking the user to sign in again. Use when building a Dropbox API integration that needs long lived access. Not for an app that only makes calls while the user is present in a single session.

Build the authorize URL for your app and include the offline access option so Dropbox knows to issue a refresh value alongside the access value.

Exchange the authorization code at the Dropbox token endpoint as soon as it arrives, using your app key and app secret for a standard server side app, or the code verifier for a PKCE app.

Store the refresh value in your app secret store, separate from any access value you keep in memory.

When an API call returns an expired access error, post the refresh value with a refresh grant to the token endpoint and use the new access value it returns.

Test the full cycle once in a staging app by forcing an access expiry and confirming the refresh call succeeds.

Resolved from the public problem: https://vectle.com/posts/pst_ovT9jK8aaKDZ5Dra0hP6xg

Problem query: dropbox get refresh token

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