Add Webhook delivery completion event

Author: nsuzuki7713

lib/types.ts

@@ -59,7 +59,8 @@ export type WebhookEvent =
   | AccountLinkEvent
   | DeviceLinkEvent
   | DeviceUnlinkEvent
-  | LINEThingsScenarioExecutionEvent;
+  | LINEThingsScenarioExecutionEvent
+  | DeliveryEvent;
 
 export type EventBase = {
   /**
@@ -78,8 +79,18 @@ export type EventBase = {
    * Source user, group, or room object with information about the source of the event.
    */
   source: EventSource;
+  /**
+   * Webhook event ID, an ID that uniquely identifies a Webhook event, in the form of a ULID string.
+   */
+  webhookEventId: string;
+  /**
+   * Whether the webhook event is a resubmitted one or not
+   */
+  deliveryContext: DeliveryContext;
 };
 
+export type DeliveryContext = { isRedelivery: boolean };
+
 export type EventSource = User | Group | Room;
 
 export type User = { type: "user"; userId: string };
@@ -360,6 +371,21 @@ export type LINEThingsActionResult = {
   data?: string;
 };
 
+/**
+ * Completed Delivery Event
+ * @see {@link https://developers.line.biz/en/docs/partner-docs/line-notification-messages/message-sending-complete-webhook-event/#receive-delivery-event}
+ */
+export type DeliveryEvent = {
+  type: "delivery";
+  /** A delivery object containing a hashed phone number string or a string specified by X-Line-Delivery-Tag. */
+  delivery: Delivery;
+} & EventBase;
+
+type Delivery = {
+  /** A hashed phone number string or a string specified by X-Line-Delivery-Tag. */
+  data: string;
+};
+
 export type EventMessage =
   | TextEventMessage
   | ImageEventMessage

test/middleware.spec.ts

@@ -26,12 +26,16 @@ describe("middleware", () => {
       groupId: "test_group_id",
       type: "group",
     },
+    webhookEventId: "test_webhook_event_id",
+    deliveryContext: {
+      isRedelivery: false,
+    },
     timestamp: 0,
     mode: "active",
     type: "message",
   };
   const webhookSignature = {
-    "X-Line-Signature": "GzU7H3qOXDzDD6cNcS/9otLzlLFxnYYriz62rNu5BDE=",
+    "X-Line-Signature": "Ey7AjSuSI2GfTDQHICAiRLLJ+GSMseISNYaQ6qXSjrU=",
   };
 
   const http = (headers: any = { ...webhookSignature }) =>