Webhooks

Create webhook subscription

Creates a new webhook subscription. plainTextSecret is only returned once in this response, so you must store it securely. If you send Idempotency-Key, a repeated create request with the same key and identical payload returns the original response without creating a second subscription. Before production rollout, prepare a receiver with signature verification, deduplication by webhook-id, and an internal queue for the follow-up detail fetch.

POST

webhook-subscriptions

curl --request POST \
  --url https://app.fintoro.sk/api/public/v1/webhook-subscriptions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "url": "https://example.com/webhooks/fintoro",
  "isActive": true,
  "subscribedEvents": [
    "invoices.created",
    "invoices.updated"
  ],
  "name": "ERP sync"
}
'

import requests

url = "https://app.fintoro.sk/api/public/v1/webhook-subscriptions"

payload = {
    "url": "https://example.com/webhooks/fintoro",
    "isActive": True,
    "subscribedEvents": ["invoices.created", "invoices.updated"],
    "name": "ERP sync"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    url: 'https://example.com/webhooks/fintoro',
    isActive: true,
    subscribedEvents: ['invoices.created', 'invoices.updated'],
    name: 'ERP sync'
  })
};

fetch('https://app.fintoro.sk/api/public/v1/webhook-subscriptions', 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://app.fintoro.sk/api/public/v1/webhook-subscriptions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'url' => 'https://example.com/webhooks/fintoro',
    'isActive' => true,
    'subscribedEvents' => [
        'invoices.created',
        'invoices.updated'
    ],
    'name' => 'ERP sync'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.fintoro.sk/api/public/v1/webhook-subscriptions"

	payload := strings.NewReader("{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.fintoro.sk/api/public/v1/webhook-subscriptions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.fintoro.sk/api/public/v1/webhook-subscriptions")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}"

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

{
  "id": 801,
  "companyId": 15,
  "name": "ERP sync",
  "url": "https://example.com/webhooks/fintoro",
  "isActive": true,
  "subscribedEvents": [
    "invoices.created",
    "invoices.updated"
  ],
  "lastSuccessAt": "2026-03-18T15:04:05Z",
  "lastFailureAt": "2026-03-18T15:05:42Z",
  "disabledAt": null,
  "disabledReason": null,
  "createdAt": "2026-03-18T14:59:12Z",
  "updatedAt": "2026-03-18T15:01:33Z",
  "plainTextSecret": "whsec_fintoro_8b5d7c9f4f6549f7a3e8c4fd5f55ab91"
}

{
  "message": "This action is unauthorized."
}

{
  "error": "Idempotency-Key reused with different request payload"
}

{
  "message": "Too Many Attempts."
}

{
  "message": "Server Error"
}

{
  "message": "Service Unavailable"
}

Authorizations

Authorization

string

header

required

Bearer token created for a specific company in Integrations → API.

Headers

Idempotency-Key

string

Optional request identifier for safe retries. Use a unique value for each create request you want to retry safely.

Example:

"invoice-create-2026-03-03-001"

Body

application/json

Payload used to create or update a webhook subscription. Use only an HTTPS endpoint that can accept JSON POST requests from Fintoro and whose hostname resolves to a public IP address.

url

string<uri>

required

HTTPS URL of your webhook receiver. The backend rejects insecure http:// addresses, endpoints with embedded username or password, and hosts that resolve to localhost, .local, private, loopback, link-local, or other reserved IP addresses. The same validation runs again immediately before the webhook is sent.

Maximum string length: 2048

Example:

"https://example.com/webhooks/fintoro"

isActive

boolean

required

Controls whether the subscription is active immediately after it is saved.

Example:

true

subscribedEvents

enum<string>[]

required

List of event types that Fintoro should deliver to this endpoint. The array must contain at least one event.

Minimum array length: 1

Webhook event type that you can subscribe to and that Fintoro can deliver to your endpoint.

Available options:

clients.created,

clients.updated,

clients.deleted,

suppliers.created,

suppliers.updated,

suppliers.deleted,

bank-accounts.created,

bank-accounts.updated,

bank-accounts.deleted,

business-case-statuses.created,

business-case-statuses.updated,

business-case-statuses.deleted,

business-cases.created,

business-cases.updated,

business-cases.deleted,

contact-activity-logs.created,

contact-activity-logs.updated,

contact-activity-logs.deleted,

price-list-items.created,

price-list-items.updated,

price-list-items.deleted,

price-list-items.stock-updated,

warehouses.created,

warehouses.updated,

warehouses.deleted,

warehouse-inbound-receipts.created,

warehouse-inbound-receipts.updated,

warehouse-inbound-receipts.deleted,

warehouse-outbound-receipts.created,

warehouse-outbound-receipts.updated,

warehouse-outbound-receipts.deleted,

invoices.created,

invoices.updated,

invoices.deleted,

invoices.paid,

credit-notes.created,

credit-notes.updated,

credit-notes.deleted,

credit-notes.paid,

received-invoices.paid,

received-receipts.paid,

proformas.created,

proformas.updated,

proformas.deleted,

proformas.paid,

orders.created,

orders.updated,

orders.deleted,

quotations.created,

quotations.updated,

quotations.deleted,

document-payments.created,

document-payments.deleted

Example:

["invoices.created", "invoices.updated"]

name

string | null

Optional internal subscription name that makes the subscription easier to identify in Fintoro or inside your integration team.

Maximum string length: 255

Example:

"ERP sync"

Response

Webhook subscription created.

One webhook subscription for the current company.

integer

Internal webhook subscription ID.

Example:

801

companyId

integer

ID of the company that owns the subscription.

Example:

15

name

string | null

Optional internal subscription name used for your own orientation.

Maximum string length: 255

Example:

"ERP sync"

url

string<uri>

HTTPS URL where Fintoro delivers webhook requests. The hostname must point to a public IP address; localhost, .local, private ranges, and reserved addresses are rejected by the backend.

Maximum string length: 2048

Example:

"https://example.com/webhooks/fintoro"

isActive

boolean

When true, the subscription is active and can receive delivery requests.

Example:

true

subscribedEvents

enum<string>[]

List of event types delivered for this subscription.

Webhook event type that you can subscribe to and that Fintoro can deliver to your endpoint.

Available options:

clients.created,

clients.updated,

clients.deleted,

suppliers.created,

suppliers.updated,

suppliers.deleted,

bank-accounts.created,

bank-accounts.updated,

bank-accounts.deleted,

business-case-statuses.created,

business-case-statuses.updated,

business-case-statuses.deleted,

business-cases.created,

business-cases.updated,

business-cases.deleted,

contact-activity-logs.created,

contact-activity-logs.updated,

contact-activity-logs.deleted,

price-list-items.created,

price-list-items.updated,

price-list-items.deleted,

price-list-items.stock-updated,

warehouses.created,

warehouses.updated,

warehouses.deleted,

warehouse-inbound-receipts.created,

warehouse-inbound-receipts.updated,

warehouse-inbound-receipts.deleted,

warehouse-outbound-receipts.created,

warehouse-outbound-receipts.updated,

warehouse-outbound-receipts.deleted,

invoices.created,

invoices.updated,

invoices.deleted,

invoices.paid,

credit-notes.created,

credit-notes.updated,

credit-notes.deleted,

credit-notes.paid,

received-invoices.paid,

received-receipts.paid,

proformas.created,

proformas.updated,

proformas.deleted,

proformas.paid,

orders.created,

orders.updated,

orders.deleted,

quotations.created,

quotations.updated,

quotations.deleted,

document-payments.created,

document-payments.deleted

Example:

["invoices.created", "invoices.updated"]

lastSuccessAt

string<date-time> | null

ISO 8601 time of the last successful delivery, when one exists.

Example:

"2026-03-18T15:04:05Z"

lastFailureAt

string<date-time> | null

ISO 8601 time of the last failed delivery, when one exists.

Example:

"2026-03-18T15:05:42Z"

disabledAt

string<date-time> | null

ISO 8601 time when the subscription was disabled. In this API version it remains null unless you disable the subscription manually or a future version adds auto-disable flows.

Example:

null

disabledReason

string | null

Reason why the subscription was disabled, when available.

Example:

null

createdAt

string<date-time> | null

ISO 8601 time when the subscription was created.

Example:

"2026-03-18T14:59:12Z"

updatedAt

string<date-time> | null

ISO 8601 time of the last subscription change.

Example:

"2026-03-18T15:01:33Z"

plainTextSecret

string

Plaintext signing secret returned only during create or rotate-secret. Store it securely; it is not returned again by later responses.

Example:

"whsec_fintoro_8b5d7c9f4f6549f7a3e8c4fd5f55ab91"

Create webhook subscription

curl --request POST \
  --url https://app.fintoro.sk/api/public/v1/webhook-subscriptions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "url": "https://example.com/webhooks/fintoro",
  "isActive": true,
  "subscribedEvents": [
    "invoices.created",
    "invoices.updated"
  ],
  "name": "ERP sync"
}
'

import requests

url = "https://app.fintoro.sk/api/public/v1/webhook-subscriptions"

payload = {
    "url": "https://example.com/webhooks/fintoro",
    "isActive": True,
    "subscribedEvents": ["invoices.created", "invoices.updated"],
    "name": "ERP sync"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    url: 'https://example.com/webhooks/fintoro',
    isActive: true,
    subscribedEvents: ['invoices.created', 'invoices.updated'],
    name: 'ERP sync'
  })
};

fetch('https://app.fintoro.sk/api/public/v1/webhook-subscriptions', 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://app.fintoro.sk/api/public/v1/webhook-subscriptions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'url' => 'https://example.com/webhooks/fintoro',
    'isActive' => true,
    'subscribedEvents' => [
        'invoices.created',
        'invoices.updated'
    ],
    'name' => 'ERP sync'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.fintoro.sk/api/public/v1/webhook-subscriptions"

	payload := strings.NewReader("{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.fintoro.sk/api/public/v1/webhook-subscriptions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.fintoro.sk/api/public/v1/webhook-subscriptions")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"https://example.com/webhooks/fintoro\",\n  \"isActive\": true,\n  \"subscribedEvents\": [\n    \"invoices.created\",\n    \"invoices.updated\"\n  ],\n  \"name\": \"ERP sync\"\n}"

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

{
  "id": 801,
  "companyId": 15,
  "name": "ERP sync",
  "url": "https://example.com/webhooks/fintoro",
  "isActive": true,
  "subscribedEvents": [
    "invoices.created",
    "invoices.updated"
  ],
  "lastSuccessAt": "2026-03-18T15:04:05Z",
  "lastFailureAt": "2026-03-18T15:05:42Z",
  "disabledAt": null,
  "disabledReason": null,
  "createdAt": "2026-03-18T14:59:12Z",
  "updatedAt": "2026-03-18T15:01:33Z",
  "plainTextSecret": "whsec_fintoro_8b5d7c9f4f6549f7a3e8c4fd5f55ab91"
}

{
  "message": "This action is unauthorized."
}

{
  "error": "Idempotency-Key reused with different request payload"
}

{
  "message": "Too Many Attempts."
}

{
  "message": "Server Error"
}

{
  "message": "Service Unavailable"
}

Overview

Endpoints

Create webhook subscription

Authorizations

Headers

Body

Response