curl --request DELETE \
  --url https://api.grailpay.com/processor/api/v1/webhook \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "event_names": [
    "TransactionStarted",
    "TransactionFailed"
  ],
  "webhook_url": [
    "https://example.com/webhook",
    "https://example.com/webhook-example"
  ]
}
'

import requests

url = "https://api.grailpay.com/processor/api/v1/webhook"

payload = {
    "event_names": ["TransactionStarted", "TransactionFailed"],
    "webhook_url": ["https://example.com/webhook", "https://example.com/webhook-example"]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'DELETE',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    event_names: ['TransactionStarted', 'TransactionFailed'],
    webhook_url: ['https://example.com/webhook', 'https://example.com/webhook-example']
  })
};

fetch('https://api.grailpay.com/processor/api/v1/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://api.grailpay.com/processor/api/v1/webhook",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "DELETE",
  CURLOPT_POSTFIELDS => json_encode([
    'event_names' => [
        'TransactionStarted',
        'TransactionFailed'
    ],
    'webhook_url' => [
        'https://example.com/webhook',
        'https://example.com/webhook-example'
    ]
  ]),
  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://api.grailpay.com/processor/api/v1/webhook"

	payload := strings.NewReader("{\n  \"event_names\": [\n    \"TransactionStarted\",\n    \"TransactionFailed\"\n  ],\n  \"webhook_url\": [\n    \"https://example.com/webhook\",\n    \"https://example.com/webhook-example\"\n  ]\n}")

	req, _ := http.NewRequest("DELETE", 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.delete("https://api.grailpay.com/processor/api/v1/webhook")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"event_names\": [\n    \"TransactionStarted\",\n    \"TransactionFailed\"\n  ],\n  \"webhook_url\": [\n    \"https://example.com/webhook\",\n    \"https://example.com/webhook-example\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.grailpay.com/processor/api/v1/webhook")

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

request = Net::HTTP::Delete.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"event_names\": [\n    \"TransactionStarted\",\n    \"TransactionFailed\"\n  ],\n  \"webhook_url\": [\n    \"https://example.com/webhook\",\n    \"https://example.com/webhook-example\"\n  ]\n}"

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

{
  "status": true,
  "message": "Webhook de-registered!",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "Invalid Token",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "Access denied. Please use a secure (HTTPS) connection.",
  "data": null,
  "errors": null,
  "error_code": null
}

{
  "status": false,
  "message": "The given data was invalid.",
  "data": null,
  "errors": {
    "event_names.0": [
      "The selected webhook event TransactionStarted1 is invalid."
    ]
  },
  "error_code": null
}