snapchat capi email hashing

<script>

async function sha256(email) {

    const encoder = new TextEncoder();

    const data = encoder.encode(email.trim().toLowerCase());

    const hash = await crypto.subtle.digest("SHA-256", data);

    return Array.from(new Uint8Array(hash)).map(b => b.toString(16).padStart(2, "0")).join("");

}

async function sendToSnapchatCAPI(email) {

    if (email) {

        const hashedEmail = await sha256(email);

        fetch("https://tr.snapchat.com/v2/conversion", {

            method: "POST",

            headers: {

                "Content-Type": "application/json"

            },

            body: JSON.stringify({

                pixel_id: "2d63937e-8c58-4e6f-8f05-17c2a94791d7",

                event_type: "WhatsAppClick",

                event_conversion_type: "WEB",

                timestamp: new Date().toISOString(),

                event_id: "wa_click_" + new Date().getTime(),

                user: {

                    email: hashedEmail

                }

            })

        });

    }

}

</script>