Issue saving refresh_token from Strava API in FlutterFlow

Hi everyone,

I’m integrating Strava’s /oauth/token in FlutterFlow and ran into an issue:

• I set up JSON Paths correctly (access_token, refresh_token, expires_at).

• In the Response Preview the refresh_token looks fine (just the string).

• But when saving to Firestore, instead of only the token string, FlutterFlow stores the whole response object ({token_type:..., access_token:..., refresh_token:...}).

Firestore field is set as String, Response Type is JSON, and I’m mapping the JSON Path — still the problem happens.

Has anyone experienced this? Could this be a bug or am I missing a step?

Thanks!