Question 119991 in Firebase Question posted in
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Firebase with Swift, sendSignInLinkToEmail succeeds with email not registered

I’m implementing sign-in via email link and I have it sending the email, but I’m using an email that has not been registered yet. Is there a way to detect if the email is already registered before calling sendSignInLinkToEmail? No error was reported from the call. TIA!

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  1. Chosen as BEST ANSWER
    0

    Nabil's answer led me to finding the function fetchSignInMethods, which was just the thing I needed. Posted here for anyone else looking for this.

            Auth.auth().fetchSignInMethods(forEmail: email, completion: {
            methods, error in

            if methods == nil {
                self.showAlert(title: "This email is not registered, please create an account")
                return
            }
        })

  2. 0

    Maybe this function can help you

    Auth.auth().fetchProviders(forEmail: emailAddress, completion: {
    error in

    if let error = error {
        print(error.localizedDescription)
    } else {
        //
    }
})

    So that if the email doesn’t exist it’ll return an error otherwise you can run the sendSignInLinkToEmail function

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