> ## Documentation Index > Fetch the complete documentation index at: https://docs.eykdata.com/llms.txt > Use this file to discover all available pages before exploring further. # Eyk event specification > JSON payload reference for every event Eyk tracks, client-side and server-side, including the cookie and consent objects. ## Page load This event is automatically tracked and does not need to be added to the data layer. Type: client-side 🌐 ```json theme={null} { "event": "page_view_eyk", "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## View Item Type: client-side 🌐 ```json theme={null} { "event": "view_item_eyk", "ecommerce": { "currency": "EUR", "value": "100", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "100", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## View Collection Type: client-side 🌐 ```json theme={null} { "event": "view_collection_eyk", "ecommerce": { "collection_id": "12345678", "currency": "EUR", "item_list_name": "Products", "items": [ { "image_url": "https://example-store.com/images/gift-card.png", "index": "1", "item_brand": "Snowboard Vendor", "item_category": "Gifts", "item_id": "8404872757547", "item_name": "Gift Card", "item_sku": "SKU-123478", "item_variant": "45556788429099", "price": "10.00", "variant_name": "$10" }, { "image_url": "https://example-store.com/images/ski-wax.png", "index": "2", "item_brand": "GTM-test-store-10", "item_category": "Gifts", "item_id": "9143900537115", "item_name": "Selling Plans Ski Wax", "item_sku": "SKU-1237658", "item_variant": "48564641825051", "price": "24.95", "variant_name": "Selling Plans Ski Wax" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## Add to Cart Type: client-side 🌐 ```json theme={null} { "event": "add_to_cart_eyk", "ecommerce": { "currency": "EUR", "value": "600", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## View Cart Type: client-side 🌐 ```json theme={null} { "event": "view_cart_eyk", "ecommerce": { "value": "600", "currency": "EUR", "cart_quantity": "1", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## Begin Checkout Type: client-side 🌐 ```json theme={null} { "event": "begin_checkout_eyk", "ecommerce": { "value": "600", "currency": "EUR", "cart_quantity": "1", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## Add Payment Info Type: client-side 🌐 ```json theme={null} { "event": "add_payment_info_eyk", "ecommerce": { "value": "600", "currency": "EUR", "cart_quantity": "1", "payment_type": "iDeal", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## Add Shipping Info Type: client-side 🌐 ```json theme={null} { "event": "add_shipping_info_eyk", "ecommerce": { "value": "600", "currency": "EUR", "cart_quantity": "1", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK" } } ``` ## Purchase Type: client-side 🌐 ```json theme={null} { "event": "purchase_eyk", "ecommerce": { "cart_quantity": "1", "value": "600", "coupon": "test", "currency": "EUR", "discount": "test", "discount_amount": "90.00", "discount_percentage": "15", "shipping": "0", "sub_total": "510", "tax": "0", "transaction_id": "5937102258459", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK", "new_customer": true } } ``` ## Purchase (webhook) Type: server-side 🔌 ```json theme={null} { "event": "purchase_webhook_eyk", "ecommerce": { "cart_quantity": "1", "value": "600", "coupon": "test", "currency": "EUR", "discount": "test", "discount_amount": "90.00", "discount_percentage": "15", "shipping": "0", "sub_total": "510", "tax": "0", "transaction_id": "5937102258459", "items": [ { "image_url": "https://example-store.com/images/snowboard-hydrogen.png", "item_brand": "Hydrogen Vendor", "item_category": "Gifts", "item_id": "9143899914523", "item_name": "The Collection Snowboard: Hydrogen", "item_sku": "SKU-76543281", "item_variant": "485646409345615", "price": "600", "quantity": "1", "variant_name": "Default Title" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK", "new_customer": true }, "cookies": { "__eui": "28e7e120-d123-4567-8910...", "_fbc": "fb.1.1707923456.IwAR0...", "_fbp": "fb.1.1707923456.1234567...", "_ga": "GA1.1.123456789.1707923...", "_gcl_aw": "GCL.1707923456.IwAR0_Q...", "_gcl_au": "1.1.1234567890.1707923...", "_uetsid": "28e7e120-d123-4567-8910...", "_uetvid": "48b6c450-a123-4567-8910...", "_epik": "dj0yJnU9UmFuZG9tUGludGVy...", "_ttp": "a1b2c3d4-e5f6-7890-g1h2...", "ttclid": "E.C.P.dje8a90d...", "awin_awc": "12345_1707923456_a1b2c3d...", "__kla_id": "eyIkZXhjaGFuZ2VfaWQiOiAiS...", "_kx": "eyIkZXhjaGFuZ2VfaWQiOiAiS..." }, "consent": { "ad_storage": "granted", "analytics_storage": "granted", "ad_user_data": "granted", "ad_personalization": "granted" } } ``` **Cookie explanation:** * `__eui`: The Eyk User ID * `_fbc`: The Meta (Facebook/Instagram) Click ID * `_fbp`: The Meta (Facebook/Instagram) Browser ID * `_ga`: The Google Analytics Client ID * `_gcl_aw`: The Google Ads Click ID (GCLID) * `_gcl_au`: The Google Marketing Platform Conversion Linker * `_uetsid`: The Microsoft (Bing) Session ID * `_uetvid`: The Microsoft (Bing) Visitor ID * `ttclid`: The TikTok Click ID * `_ttp`: The TikTok Pixel ID * `_epik`: The Pinterest Click ID * `awin_awc`: The Awin Click ID * `__kla_id`: The Klaviyo Identity Cookie * `_kx`: The Klaviyo Tracking Cookie (exchange ID) **Consent explanation:** This object passes the user's explicit choices regarding data collection, formatted according to Google Consent Mode v2 standards. Accepted values: `granted`, `denied` ## Subscription Start Type: client-side 🌐 & server-side 🔌 ```json theme={null} { "event": "subscription_start_eyk", "ecommerce": { "currency": "EUR", "value": "100", "items": [ { "image_url": "https://example-store.com/images/subscription-product.png", "item_brand": "Subscription Vendor", "item_category": "Subscriptions", "item_id": "9143899914524", "item_name": "Monthly Subscription", "item_sku": "SKU-SUB-001", "item_variant": "485646409345616", "price": "100", "quantity": "1", "variant_name": "Monthly Plan" } ] }, "user_data": { "city": "Rotterdam", "country": "NL", "customer_id": "12349878", "email": "example@eykdata.com", "first_name": "Eyk", "last_name": "Data", "phone": "+31612345678", "region": "Zuid-Holland", "street": "Stationsplein", "zip": "3013AK", "new_customer": true } } ```