the project that I am trying to automate is This.
Manual Logged in
When I click on Google logged-in it will redirect to manual login.
after I logged in successfully I can see there Post method
Request URL: https://www.googleapis.com/identitytoolkit/v3/relyingparty/verifyAssertion?key=AIzaSyDF-qMBES2pwjDAzWRRsu-FiAxZgJsBuIk
Request Method: POST
with the body
requestUri: "FirebaseappURL"
returnIdpCredential: true
returnSecureToken: true
sessionId: "SessionID???"
after that, it generates a Large respond
context: ""
displayName.
emailverified.
expiresIn:3600
federatedId:...
firstName:.
fullName:.
idToken: <Token>
kind: "identitytoolkit#VerifyAssertionResponse"
lastName: ...
localId: <ID>
oauthAccessToken: <Token>
oauthExpireIn: 3600
oauthIdToken: <Token>
photoUrl: <url>
providerId: "google.com"
rawUserInfo: <long json>
refreshToken: <token>
I want to simulate it with post request with the postman
after that, I will transfer it to Script
What I tried
Google API Config
I went to Google DashBoard Create Project.
Then I go to the OAuth consent screen and add my user as test users.
Add all the Clawee sites as authorizes.
Then I Went to Credentials and add Oauth 2.0 Client ID's of the Desktop client
and got his ClientID and SecretID
Now from postman, I went to
https://accounts.google.com/o/oauth2/v2/auth?client_id=<ClientID>.apps.googleusercontent.com&response_type=code&scope=openid%20email&access_type=offline&redirect_uri=urn:ietf:wg:oauth:2.0:oob
I got my auth-code
now I send a request to
https://oauth2.googleapis.com/token
with params clientid,secretId,authCode,grant_type
and get my Access Token + Refress Token
Now to check that, I navigate to
https://www.googleapis.com/oauth2/v3/userinfo?access_token="
I got My User Info... It works
Now I tried to use that Access Token
To login to Firebase app as they did
but because I using my Own token and not a manual login
I read about the "signInWithIdp" or "verifyCustomToken"
And I tried
with 'postBody': 'access_token=[My_Token]&providerId=google.com' or
token: [My_Token]
Both Failed...
What am I doing wrong?
question from:
https://stackoverflow.com/questions/65942733/failed-to-authenticate-to-specific-firebase-api-project 
