I'm trying to use the Firestore Go SDK from a client application. This looks like a client-side SDK, based on the functions, but that might be my first error?
I'm struggling to authenticate the user to Firestore. I've already logged them in using the REST API for Firebase Auth. This returns me an ID token, refresh token, etc. How do I use this with the Firestore SDK?
The docs suggest I need to call
firestore.NewClient(<context>, <project-id>, <option>). For the latter argument, I've tried
option.WithCredentialsJSON(...) passing a JWT-decoded ID token. I've also tried passing the raw refresh token. In both cases, the SDK complains about what I'm passing.
How can I authenticate the user based on the tokens I've obtained?