Stripe webhook handler

curl --request POST \
  --url https://{domain}/wp-json/sagescreen/v1/stripe/webhook \
  --header 'Content-Type: application/json' \
  --header 'Stripe-Signature: <api-key>' \
  --data '
{
  "id": "evt_1NqIAB2eZvKYlo2C5XFo8Dg6",
  "type": "checkout.session.completed",
  "data": {
    "object": {
      "id": "cs_test_a1b2c3d4",
      "customer": "cus_Abc123",
      "payment_status": "paid",
      "metadata": {
        "council_id": "c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6",
        "sku": "P-25-2"
      }
    }
  }
}
'

import requests

url = "https://{domain}/wp-json/sagescreen/v1/stripe/webhook"

payload = {
    "id": "evt_1NqIAB2eZvKYlo2C5XFo8Dg6",
    "type": "checkout.session.completed",
    "data": { "object": {
            "id": "cs_test_a1b2c3d4",
            "customer": "cus_Abc123",
            "payment_status": "paid",
            "metadata": {
                "council_id": "c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6",
                "sku": "P-25-2"
            }
        } }
}
headers = {
    "Stripe-Signature": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Stripe-Signature': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 'evt_1NqIAB2eZvKYlo2C5XFo8Dg6',
    type: 'checkout.session.completed',
    data: {
      object: {
        id: 'cs_test_a1b2c3d4',
        customer: 'cus_Abc123',
        payment_status: 'paid',
        metadata: {council_id: 'c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6', sku: 'P-25-2'}
      }
    }
  })
};

fetch('https://{domain}/wp-json/sagescreen/v1/stripe/webhook', 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://{domain}/wp-json/sagescreen/v1/stripe/webhook",
  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([
    'id' => 'evt_1NqIAB2eZvKYlo2C5XFo8Dg6',
    'type' => 'checkout.session.completed',
    'data' => [
        'object' => [
                'id' => 'cs_test_a1b2c3d4',
                'customer' => 'cus_Abc123',
                'payment_status' => 'paid',
                'metadata' => [
                                'council_id' => 'c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6',
                                'sku' => 'P-25-2'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Stripe-Signature: <api-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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{domain}/wp-json/sagescreen/v1/stripe/webhook"

	payload := strings.NewReader("{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}")

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

	req.Header.Add("Stripe-Signature", "<api-key>")
	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://{domain}/wp-json/sagescreen/v1/stripe/webhook")
  .header("Stripe-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{domain}/wp-json/sagescreen/v1/stripe/webhook")

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

request = Net::HTTP::Post.new(url)
request["Stripe-Signature"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}"

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

{
  "received": true
}

Billing – Stripe

Stripe webhook handler

Receives Stripe event webhooks and routes them to the appropriate handler. Authentication is performed via HMAC-SHA256 signature verification of the Stripe-Signature header against the stored webhook secret (ss_stripe_webhook_secret).

Signature verification:

Header format: t={timestamp},v1={signature}
Signed payload: {timestamp}.{raw_body}
Algorithm: HMAC-SHA256
Tolerance: 300 seconds (5 minutes)

Handled event types:

checkout.session.completed — Creates council for new customers or adds credits for existing
invoice.paid — Handles renewal invoices, adds credits, fires renewal webhook, auto-creates renewal deal for E-SKU
charge.refunded — Deducts credits proportional to refund ratio (never below 0)
customer.subscription.deleted — Marks council as cancelled
customer.subscription.updated — Updates subscription SKU
checkout.session.async_payment_succeeded — Processes cleared async payments (ACH/bank)
checkout.session.async_payment_failed — Cleans up failed async payment data

Unhandled event types are logged and acknowledged with {received: true}.

POST

stripe

webhook

Stripe webhook handler

curl --request POST \
  --url https://{domain}/wp-json/sagescreen/v1/stripe/webhook \
  --header 'Content-Type: application/json' \
  --header 'Stripe-Signature: <api-key>' \
  --data '
{
  "id": "evt_1NqIAB2eZvKYlo2C5XFo8Dg6",
  "type": "checkout.session.completed",
  "data": {
    "object": {
      "id": "cs_test_a1b2c3d4",
      "customer": "cus_Abc123",
      "payment_status": "paid",
      "metadata": {
        "council_id": "c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6",
        "sku": "P-25-2"
      }
    }
  }
}
'

import requests

url = "https://{domain}/wp-json/sagescreen/v1/stripe/webhook"

payload = {
    "id": "evt_1NqIAB2eZvKYlo2C5XFo8Dg6",
    "type": "checkout.session.completed",
    "data": { "object": {
            "id": "cs_test_a1b2c3d4",
            "customer": "cus_Abc123",
            "payment_status": "paid",
            "metadata": {
                "council_id": "c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6",
                "sku": "P-25-2"
            }
        } }
}
headers = {
    "Stripe-Signature": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Stripe-Signature': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 'evt_1NqIAB2eZvKYlo2C5XFo8Dg6',
    type: 'checkout.session.completed',
    data: {
      object: {
        id: 'cs_test_a1b2c3d4',
        customer: 'cus_Abc123',
        payment_status: 'paid',
        metadata: {council_id: 'c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6', sku: 'P-25-2'}
      }
    }
  })
};

fetch('https://{domain}/wp-json/sagescreen/v1/stripe/webhook', 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://{domain}/wp-json/sagescreen/v1/stripe/webhook",
  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([
    'id' => 'evt_1NqIAB2eZvKYlo2C5XFo8Dg6',
    'type' => 'checkout.session.completed',
    'data' => [
        'object' => [
                'id' => 'cs_test_a1b2c3d4',
                'customer' => 'cus_Abc123',
                'payment_status' => 'paid',
                'metadata' => [
                                'council_id' => 'c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6',
                                'sku' => 'P-25-2'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Stripe-Signature: <api-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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{domain}/wp-json/sagescreen/v1/stripe/webhook"

	payload := strings.NewReader("{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}")

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

	req.Header.Add("Stripe-Signature", "<api-key>")
	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://{domain}/wp-json/sagescreen/v1/stripe/webhook")
  .header("Stripe-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{domain}/wp-json/sagescreen/v1/stripe/webhook")

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

request = Net::HTTP::Post.new(url)
request["Stripe-Signature"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"evt_1NqIAB2eZvKYlo2C5XFo8Dg6\",\n  \"type\": \"checkout.session.completed\",\n  \"data\": {\n    \"object\": {\n      \"id\": \"cs_test_a1b2c3d4\",\n      \"customer\": \"cus_Abc123\",\n      \"payment_status\": \"paid\",\n      \"metadata\": {\n        \"council_id\": \"c9d8e7f6-5a4b-3c2d-1e0f-a1b2c3d4e5f6\",\n        \"sku\": \"P-25-2\"\n      }\n    }\n  }\n}"

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

{
  "received": true
}

Authorizations

Stripe-Signature

string

header

required

Stripe webhook signature header. Format: t={unix_timestamp},v1={hmac_sha256_hex}. Verified against ss_stripe_webhook_secret with a 5-minute timestamp tolerance.

Body

application/json

Stripe event JSON object. The full Stripe event envelope is passed through; only type and data.object are consumed by the handler.

string

required

Stripe event ID

Example:

"evt_1NqIAB2eZvKYlo2C5XFo8Dg6"

type

enum<string>

required

Stripe event types handled by the webhook

Available options:

checkout.session.completed,

invoice.paid,

charge.refunded,

customer.subscription.deleted,

customer.subscription.updated,

checkout.session.async_payment_succeeded,

checkout.session.async_payment_failed

Example:

"checkout.session.completed"

data

object

required

Show child attributes

Response

Event received and processed

received

boolean

required

Example:

true

Public API

Internal API

Stripe webhook handler

Authorizations

Body

Response