validate
Sign
In
protected open fun validateSignIn(email: String, password: String, language: String, custom: Array<Any>): String
Method to validate the inputs of the signIn method to correctly execute a sign-in operation
Return
the key of the error if any inputs is wrong, null otherwise as String
Parameters
email
The email of the user
password
The password of the user
language
The language of the user
custom
The custom parameters added in a customization of the EquinoxUser to execute a customized sign-in validation