Sign-on by using Google OAuth2
Sign-on by using Google OAuth2 Popular OAuth2 services are available in mobile applications. such as; Login the mobile applications by using Facebook, Google, Twitter etc accounts. In this post, I am gonna explain how to Login a mobile application by using Gmail/Google+ credentials. Step 1: First, we should get the SHA1 fingerprint id from our Android Studio. So, Open the terminal in Mac or Linux (In Windows, open your DOS or command prompt) then follow those below steps in a sequential order. cd ~/.android then keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android . . Certificate fingerprints: MD5: B3:13:5C:40:63:7B:54:2C:95:57:24:1B:A2:CC:D7:C8 SHA1: 2C:32:8D:E3:B2:B1:33:D3:25:C2:35:F6:96:71:2C:48:98:39:98:2B SHA256: 9D:00:90:01:31:F9:77:8C:00:F1:3C:74:C6:1B:72:0F:3A:B3:93:6A:6E:F1:F3:0E:64:0F:A5:01:76:F0:63:70 Signature algorithm name: SHA256withRSA Version: 3 . . S