Resend failed messages in a time range

POSThttps://api.checkslip.com/api/webhooks/endpoints/{endpoint_id}/recover

API key

Use it after your system was down. Resends every delivery of this endpoint that is FAILED and was created from since up to, not including, until (no until means now). Each goes out with its original webhook-id, so a system that deduplicates on webhook-id records it once. The range can be at most 14 days and reach back at most 30 days (RECOVER_WINDOW_INVALID). The work runs in the background and the response carries no count; follow it through this endpoint's deliveries that are RETRYING. A disabled endpoint must be turned on first (ENDPOINT_DISABLED). An Idempotency-Key is required. Needs an API key with webhook:manage.

Parameters

Field	In	Type	Required
`endpoint_id`	path	`string`	yes
`traceparent`	header	`string`	no
`Idempotency-Key`	header	`string`	yes

Request body

application/json

Field	Type	Required
`since`	`string (date-time)`	yes
`until`	`string (date-time)`	no

Responses

202 `application/json`

Field	Type	Required
`endpoint_id`	`string`	yes
`since`	`string (date-time)`	yes
`until`	`string (date-time)`	yes

Possible errors

400401403404409422

An error as Problem Details. All codes are listed at Error codes

curl https://api.checkslip.com/api/webhooks/endpoints/string/recover \
  -H "Authorization: Bearer $CHECKSLIP_API_KEY" \
  -H "Idempotency-Key: order-1042-slip-1" \
  -H "Content-Type: application/json" \
  -d '{"since":"2026-11-05T09:30:00+07:00","until":"2026-11-05T09:30:00+07:00"}'

const res = await fetch("https://api.checkslip.com/api/webhooks/endpoints/string/recover", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.CHECKSLIP_API_KEY}`,
    "Idempotency-Key": "order-1042-slip-1",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    since: "2026-11-05T09:30:00+07:00",
    until: "2026-11-05T09:30:00+07:00",
  }),
});
const data = await res.json();

import os

import requests

res = requests.post(
    "https://api.checkslip.com/api/webhooks/endpoints/string/recover",
    headers={
        "Authorization": f"Bearer {os.environ['CHECKSLIP_API_KEY']}",
        "Idempotency-Key": "order-1042-slip-1",
    },
    json={
        "since": "2026-11-05T09:30:00+07:00",
        "until": "2026-11-05T09:30:00+07:00",
    },
)
data = res.json()

Example response

{
  "endpoint_id": "string",
  "since": "2026-11-05T09:30:00+07:00",
  "until": "2026-11-05T09:30:00+07:00"
}

Parameters#

Request body#

Responses#

202 application/json#

Possible errors#

Parameters

Request body

Responses

202 `application/json`

Possible errors