LUA script to use in https://www.webscript.io to redirect webhook calls to different endpoints, according to the mailbox

helpscout-webhook.lua

-- Mirror the request to multiple endpoints
-- Used to propagate HelpScout webhooks

if request.method == 'POST' then
	-- List here the url for each Mailbox's webhook listener
	local urlMailbox = {
		Mailbox1 = 'https://www.endpoin1.test/endpoint',
		Mailbox2 = 'https://www.endpoin2.test/endpoint',	
	}
	
	payload = json.parse(request.body)
	mailbox = payload.mailbox.name

	if urlMailbox[mailbox] ~= nil then
		-- Make the request to another server
		http.request {
			method = "post",
			url = urlMailbox[mailbox],
			headers = {
				['X-Helpscout-Signature'] = request.headers['X-Helpscout-Signature'],
				['X-Helpscout-Event'] = request.headers['X-Helpscout-Event'],
				['Content-Type'] = 'application/json',
				['User-Agent'] = 'Help Scout/Webhooks'
			},
			data = request.body
		}
		
		print('Conversation: ' .. payload.id)
		print('Mailbox: ' .. mailbox)
		print('Request mirrored to: ' .. urlMailbox[mailbox])
	else
		print('Mailbox ' .. mailbox .. ' not mapped to an url')
	end
	
	return 200
end

print('Invalid Method')
return 405