how to get my debug signing certificate sha-1 code example
Example 1: linux get signing certificate SHA-1
expo fetch:android:keystore
keytool -list -v -keystore {path_to_your_.jks_file} -alias {alias_name}
keytool -list -v -keystore myapp.jks -alias QHN1cmVwbHVzL3N1cmV
Example 2: Debug signing certificate SHA-1 flutter
keytool -list -v -keystore "C:\Users\yourusernamehere\.android\debug.keystore" -alias androiddebugkey -storepass android -keypass android