Firebase error handling while creating user Swift -


i developing ios application , wanted implement firebase database.

i'm facing issue while handling errors during users creation process. default error switch, here code :

firauth.auth()?.createuser(withemail: emailfield.text!, password: passwordfield.text!, completion: { (user, error) in         if (error != nil) {              if let errcode = firautherrorcode(rawvalue: error!._code) {                  var alertcontroller = uialertcontroller(title: "", message: "", preferredstyle: uialertcontrollerstyle.alert)                 let okbutton = uialertaction(title: "ok", style: uialertactionstyle.default) {                     (result: uialertaction) -> void in                     print("error transmitted")                 }                  switch errcode {                 case .errorcodeinvalidemail:                     print("invalid email")                     alertcontroller = uialertcontroller(title: "error", message: "email syntax not correct", preferredstyle: uialertcontrollerstyle.alert)                     alertcontroller.addaction(okbutton)                     self.present(alertcontroller, animated: true, completion: nil)                 case .errorcodeemailalreadyinuse:                     print("email in use")                     alertcontroller = uialertcontroller(title: "error", message: "this email in use", preferredstyle: uialertcontrollerstyle.alert)                     alertcontroller.addaction(okbutton)                     self.present(alertcontroller, animated: true, completion: nil)                 case .errorcodeweakpassword:                     print("password weak")                     alertcontroller = uialertcontroller(title: "error", message: "password weak. please choose password contains @ least 6 characters.", preferredstyle: uialertcontrollerstyle.alert)                     alertcontroller.addaction(okbutton)                     self.present(alertcontroller, animated: true, completion: nil)                 default:                     // here.                     print(error)                     alertcontroller = uialertcontroller(title: "error", message: "an unknown error occured.", preferredstyle: uialertcontrollerstyle.alert)                     alertcontroller.addaction(okbutton)                     self.present(alertcontroller, animated: true, completion: nil)                 }              }          } else {             print("user created")             let newuser = ["email": self.emailfield.text!]             let firebasenewuser = self.ref.childbyautoid()             firebasenewuser.setvalue(newuser)         }

moreover, print(error) displays :

optional(error domain=firautherrordomain code=17999 "an internal error has occurred,      print , inspect error details more information."      userinfo={nsunderlyingerror=0x170257be0 {         error domain=firauthinternalerrordomain code=3 "(null)"          userinfo={firautherroruserinfodeserializedresponsekey={     code = 400;     errors =     (             {         domain = usagelimits;         message = "bad request";         reason = keyexpired;     }     );     message = "bad request"; }}},  error_name=error_internal_error,  nslocalizeddescription=an internal error has occurred, print , inspect      error details more information.})

can me please ?

try enabling identity toolkit api in google console.


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