Using the DropBox API to host files for a public website (.net 9 Blazor)

Hi TimCadieux,

The code returned from the auth URL: https://www.dropbox.com/oauth2/authorize?client_id=&token_access_type=offline&response_type=code is an authorization code, not a refresh token.

To obtain a refresh token, you would first need to send a request to /oauth2/token with the value of the authorization code, from the first step. Below is the cURL equivalent for that request:

curl https://api.dropbox.com/oauth2/token \
    -d code=<AUTHORIZATION_CODE> \
    -d grant_type=authorization_code \
    -d client_id=<APP_KEY> \
    -d client_secret=<APP_SECRET>

The response from the above request will contain a refresh token value. You can then use that refresh token value to execute the code snippet you originally shared.

Feel free to reference our OAuth Guide and authorization documentation for any additional information.