Android Google or Facebook sign in not working in release mode

Here’s a quick overview
1. Release mode
2. Playstore Mode

Release Mode

First Sign your app by following these steps here
For Flutter here

run ./gradlew signingReport

output
> Task :app:signingReport
Variant: debug
Config: debug
Store: ~/.android/debug.keystore
Alias: AndroidDebugKey
MD5: A5:88:41:04:8D:06:71:6D:FE:33:76:87:AC:AD:19:23
SHA1: A7:89:E5:05:C8:17:A1:22:EA:90:6E:A6:EA:A3:D4:8B:3A:30:AB:18
SHA-256: 05:A2:2C:35:EE:F2:51:23:72:4D:72:67:A5:6C:8C:58:22:2A:00:D6:DB:F6:45:D5:C1:82:D2:80:A4:69:A8:FE
Valid until: Wednesday, August 10, 2044

You can see the release config same as the debug config

Copy SHA-1 key and add in firebase project settings

For Facebook

Convert your SHA-1 to base 64. Use this site to convert here
Add in Facebook app

Playstore Mode

After publishing your app in playstore
you need to do the same steps in release mode by using the playstore signing config. You will find your app signing config under the “App signing” option

you all set to go……