<Error Code> https://developer.android.com/reference/android/hardware/fingerprint/FingerprintManager.html#FINGERPRINT_ACQUIRED_GOOD <Init> FingerprintKey.initKey({keyId: "testKey", locale: {desc:"desc", cancel:"cancel", title:"title", hint:"hint", success:"success", notrecognized:"notrecognized"}}, function(res){console.log(res);}, function(res){console.log(res)}); <Fetch> FingerprintKey.fetchKey({keyId: "testKey", locale: {desc:"desc", cancel:"cancel", title:"title", hint:"hint", success:"success", notrecognized:"notrecognized"}}, function(res){console.log(res);}, function(res){console.log(res)}); <Check Availability> FingerprintKey.isAvailable(function(res){console.log(res);}, function(res){console.log(res)});