Klaviyo & Shopify Email Verification

// Validate Shopify popup / referral email before syncing to Klaviyo Subscribe API
export async function validateAndSubscribeKlaviyo(email, listId) {
  const verifyRes = await fetch("https://api.mailveri.com/v1/verify-mail/", {
    method: "POST",
    headers: {
      "Authorization": `Bearer ${process.env.MAILVERI_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ email }),
  });

  const result = await verifyRes.json();

  // Reject disposable burner emails & invalid typos before issuing 15% discount code
  if (result.status !== "VALID") {
    return {
      accepted: false,
      reason: "Please enter a valid personal email address to receive your discount code.",
    };
  }

  // Forward verified shopper to Klaviyo
  return { accepted: true, email: result.email };
}