STEP 1: #
Go to – https://github.com/ & Signin to your account. If you don’t have an account, Signup for a New account.
STEP 2: #
Go on right menu > Click on “Settings“
STEP 3: #
Click on “Developer Settings“
STEP 4: #
Click on “Register a New Application”
STEP 5: #
A) Set your Application name
B) Mention the website for your app. (if you don’t have a website, write https://www.google.com/)
C) Set it as- https://YOUR_FIREBASE_PROJECT_ID.firebaseapp.com/__/auth/handler
(Just paste your firebase project ID in this string & copy paste the whole string)
STEP 6: #
Copy the “Client ID” & “Client Secret“