Get Access Token "Malformed" Error

[timnlupo]

Hi everyone,

I am trying to authenticate my app to make REST calls to Google from Unity. I successfully generate an authCode from logging in with this API with the following configuration.

configuration = new GoogleSignInConfiguration {
	WebClientId = webClientId,
	UseGameSignIn = false,
	RequestIdToken = true,
	RequestAuthCode = true,
	AdditionalScopes = scopes
};

I'm now trying to exchange my authCode for an accessToken so I can make REST calls to different APIs. I referenced #57 and my code for this is below.

WWWForm formData = new WWWForm();
formData.AddField("client_id", webClientId);
formData.AddField("client_secret", webClientSecret);
formData.AddField("grant_type", "authorization_code");
formData.AddField("code", "AuthCode");

UnityWebRequest www = UnityWebRequest.Post("https://www.googleapis.com/oauth2/v4/token", formData);

I get a 400 Generic/unknown HTTP error with the response { "error": "invalid_grant", "error_description": "Malformed auth code." }. What is going wrong? Am I able to use a webClientID to access Google API from REST? Is there a problem with authCode generation? Please advise, thanks.

[timnlupo]

I hate myself. I've been debugging for like 5 hours. In the line formData.AddField("code", "AuthCode"); I put " around AuthCode. I wasn't sending my actual variable lol, it's all fixed now.

[vlon]

Hi, How is authcode generated, I am stuck here