Function toggleSignIn

auth/email-link.ts:36–78

* Handles the sign in button press.

()

 * Handles the sign in button press.
 */
function toggleSignIn() {
  // Disable the sign-in button during async sign-in tasks.
  signInButton.disabled = true;

  if (auth.currentUser) {
    signOut(auth).catch(function (error) {
      // Handle Errors here.
      const errorCode = error.code;
      const errorMessage = error.message;
      handleError(error);
    });
  } else {
    const email = emailInput.value;
    // Sending email with sign-in link.
    const actionCodeSettings = {
      // URL you want to redirect back to. The domain (www.example.com) for this URL
      // must be whitelisted in the Firebase Console.
      url: window.location.href, // Here we redirect back to this same page.
      handleCodeInApp: true, // This must be true.
    };

    sendSignInLinkToEmail(auth, email, actionCodeSettings)
      .then(function () {
        // Save the email locally so you don’t need to ask the user for it again if they open
        // the link on the same device.
        window.localStorage.setItem('emailForSignIn', email);
        // The link was successfully sent. Inform the user.
        alert(
          'An email was sent to ' +
            email +
            '. Please use the link in the email to sign-in.',
        );
        // Re-enable the sign-in button.
        signInButton.disabled = false;
      })
      .catch(function (error) {
        // Handle Errors here.
        const errorCode = error.code;
        const errorMessage = error.message;
        handleError(error);
      });
  }
}

/**
 * Handles Errors from various Promises..