sendVerificationCode

phone-verification.tsx

const sendVerificationCode = async () => {
    setLoading(true);

    try {
      const email = convertPhoneToEmail(phoneNumber);
      const providers = await fetchSignInMethodsForEmail(auth, email);
      if (providers.length == 0) {
        const confirmationResult = await signInWithPhoneNumber(
          auth,
          phoneNumber,
          new RecaptchaVerifier("recaptcha-container", {}, auth)
        );
        codeSent(confirmationResult.verificationId);
      } else {
        // TODO : Show there is an account and try login instead
        console.log("account exist");
      }
    } catch (error) {
      console.log(error);
    } finally {
      setLoading(false);
    }
  };