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If basic authentication is used, the app key should be provided as the username, and the app secret should be provided as the password. This datatype comes from an imported namespace originally defined in the auth namespace. This datatype comes from an imported namespace originally defined in the auth namespace. Your app should wait for the number of seconds specified in the "Retry-After" response header before trying again.All redirect URIs must be HTTPS except for localhost URIs. Up to 500 bytes of arbitrary data that will be passed back to your redirect URI.This parameter should be used to protect against cross-site request forgery (CSRF).If the user isn't already signed in to the Dropbox web site, they will be prompted to do so on this web page.
Note that some users use their Google account to sign in to Dropbox.
These parameters are passed in the URL fragment (after the # in the URL).