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Retrieve a delivery

GET
/v1/hooks/applications/{application}/deliveries/{delivery_id}

One message's delivery to one endpoint.

Authorization

bearerAuth
headerAuthorizationBearer <token>

A secret API key from the dashboard: coss_live_… for production environments, coss_test_… for sandbox environments.

Path Parameters

application*string

The application's id (happ_…) or your uid for it.

delivery_id*string

Header Parameters

Coss-Version?"2026-10-10"

The API version (a date) to use for this request. Defaults to your organization's version, pinned to the latest one when it first used the API and upgraded from the dashboard. The SDK always sends the version it was built for.

Value in"2026-10-10"

Response Body

The delivery.

application/json
  1. response
object*"hook_delivery"
Value in"hook_delivery"
id*string
application_id*string
message_id*string
endpoint_id*string
status*string

pending: waiting for its next attempt. succeeded: the endpoint answered 2xx. failed: every attempt failed, or the endpoint was disabled or deleted.

Value in"pending""succeeded""failed"
attempt_count*integer
next_attempt_at*|
Formatdate-time
last_status_code*integer|null
last_error*string|null
created_at*string
Formatdate-time
finished_at*|
Formatdate-time
import { Coss } from "coss";const coss = new Coss({  apiKey: process.env.COSS_API_KEY,  baseUrl: "https://api.coss.com",});const { data, error } = await coss.hooks.deliveries.get("customer_8812", "hdel_01k7c8m4q2f3e9v6t5r1n0p8yz");
{  "object": "hook_delivery",  "id": "hdel_01k7c8m4q2f3e9v6t5r1n0p8yz",  "application_id": "happ_01k7c8m4q2f3e9v6t5r1n0p8yz",  "message_id": "hmsg_01k7c8m4q2f3e9v6t5r1n0p8yz",  "endpoint_id": "hep_01k7c8m4q2f3e9v6t5r1n0p8yz",  "status": "succeeded",  "attempt_count": 1,  "next_attempt_at": null,  "last_status_code": 200,  "last_error": null,  "created_at": "2026-01-15T09:30:00.000Z",  "finished_at": "2026-01-15T09:30:00.000Z"}