API referenceEvents
The tracking pixel of a mail sent with tracking_options.opens loaded: mail_opened, with the send's label and custom_domain. Opens by mail clients' proxies and scanners come as they are: telling them apart is yours.
Header Parameters
X-LG-Signature*string
base64url(HMAC-SHA256(raw body, your webhook's signing secret)), the secret being the whsec_… shown in the console. Verify it over the raw bytes before parsing, and refuse the event when it does not match.
X-LG-Event-Id*string
The event id, also event_id in the body: the same on every retry of the event. Deduplicate on it.
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
Example Requests
POST
/EmailMailOpened