Redeliver a failed webhook delivery

curl --request POST \
  --url https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>' \
  --header 'idempotency-key: <idempotency-key>'

import requests

url = "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver"

headers = {
    "checkfu-version": "<checkfu-version>",
    "idempotency-key": "<idempotency-key>",
    "Authorization": "Bearer <token>"
}

response = requests.post(url, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'checkfu-version': '<checkfu-version>',
    'idempotency-key': '<idempotency-key>',
    Authorization: 'Bearer <token>'
  }
};

fetch('https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>",
    "idempotency-key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver"

	req, _ := http.NewRequest("POST", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("idempotency-key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver")
  .header("checkfu-version", "<checkfu-version>")
  .header("idempotency-key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["idempotency-key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "status": "queued",
  "delivery_id": "<string>",
  "endpoint_id": "<string>",
  "event_id": "<string>",
  "session_id": "<string>",
  "attempts": 1,
  "queued_at": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "validation.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-not-found"
  }
}

{
  "error": {
    "type": "runtime.invalid_transition",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-invalid-transition"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Redeliver a failed webhook delivery

Requeue one dead-lettered (failed) delivery from its owning Session. Checkfu preserves the original delivery id, event id, event type, per-Session sequence, and event timestamp; it schedules a new signed attempt and never fabricates a replacement event. The endpoint must be active, the delivery must still be inside the 30-day diagnostic window, and a non-empty Idempotency-Key is required for safe retries.

Checkfu support posture: alpha; hosted. Required evidence journey: webhook-delivery. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.

POST

webhook-endpoints

{id}

deliveries

{deliveryId}

redeliver

Redeliver a failed webhook delivery

curl --request POST \
  --url https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver \
  --header 'Authorization: Bearer <token>' \
  --header 'checkfu-version: <checkfu-version>' \
  --header 'idempotency-key: <idempotency-key>'

import requests

url = "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver"

headers = {
    "checkfu-version": "<checkfu-version>",
    "idempotency-key": "<idempotency-key>",
    "Authorization": "Bearer <token>"
}

response = requests.post(url, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'checkfu-version': '<checkfu-version>',
    'idempotency-key': '<idempotency-key>',
    Authorization: 'Bearer <token>'
  }
};

fetch('https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "checkfu-version: <checkfu-version>",
    "idempotency-key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver"

	req, _ := http.NewRequest("POST", url, nil)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("idempotency-key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver")
  .header("checkfu-version", "<checkfu-version>")
  .header("idempotency-key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/webhook-endpoints/{id}/deliveries/{deliveryId}/redeliver")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["idempotency-key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "status": "queued",
  "delivery_id": "<string>",
  "endpoint_id": "<string>",
  "event_id": "<string>",
  "session_id": "<string>",
  "attempts": 1,
  "queued_at": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "validation.not_found",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-not-found"
  }
}

{
  "error": {
    "type": "runtime.invalid_transition",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-invalid-transition"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

checkfu-version

enum<string>

required

Available options:

2026-08-27

idempotency-key

string

required

Required string length: 1 - 255

Path Parameters

string

required

Pattern: ^whe_[0-9a-f]{32}$

deliveryId

string

required

Pattern: ^wdel_[0-9a-f]{32}$

Response

Success

status

enum<string>

required

Available options:

queued

delivery_id

string

required

Pattern: ^wdel_[0-9a-f]{32}$

endpoint_id

string

required

Pattern: ^whe_[0-9a-f]{32}$

event_id

string

required

Pattern: ^evt_[0-9a-f]{32}$

session_id

string | null

required

Pattern: ^sess_[0-9a-f]{32}$

attempts

integer

required

Required range: x > 0

queued_at

string

required

Developer tools

Canonical tables

Author protocols

Generated HTTP API

Redeliver a failed webhook delivery

Authorizations

Headers

Path Parameters

Response