Handle Airwallex webhook events

curl --request POST \
     --url /webhooks/airwallex/{siteId}/{accountId} \
     --header 'accept: application/json' \
     --header 'x-timestamp: string' \
     --header 'x-signature: string'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");
myHeaders.append("x-timestamp", "string");
myHeaders.append("x-signature", "string");

var requestOptions = {
   method: 'POST',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("/webhooks/airwallex/{siteId}/{accountId}", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("/webhooks/airwallex/{siteId}/{accountId}")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Post.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"
request["x-timestamp"] = "string"
request["x-signature"] = "string"

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

import requests
import json

url = "/webhooks/airwallex/{siteId}/{accountId}"

payload = {}
headers = {
   'accept': 'application/json',
   'content-type': 'application/json',
   'x-timestamp': 'string',
   'x-signature': 'string'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

// Unauthorized