public static async Task <IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req, TraceWriter log)
{
// 1. Instantiate dependencies
var clockworkApi = new ClockworkApi();
DomainRepository dnsRepository = null;// new DomainRepository();
// 2. Get the request model
var clockworkHook = ClockworkHookRequest.FromQueryString(req.Query);
// 3. Decode the DNS Request
// The DNS lookup path is in the clockworkHook message
var dnsRequest = DnsRequest.FromContent(clockworkHook.Content);
try
{
// 4. Handle the request
if (dnsRequest.RequestType == DnsRequestType.Register)
{
// 4.1 If this is a registration, register the payload against the from number
await dnsRepository.Register(dnsRequest.Payload, clockworkHook.From);
await clockworkApi.SendMessage(clockworkHook.From, "201");
}
else
{
// 4.2 If this is a lookup, return the number
var result = await dnsRepository.Resolve(dnsRequest.Payload);
if (result == null)
{
await clockworkApi.SendMessage(clockworkHook.From, $"404");
}
else
{
await clockworkApi.SendMessage(clockworkHook.From, $"200 {result}");
}
}
}
catch (BadRequestException)
{
// On bad request, send a 500 to the sender
await clockworkApi.SendMessage(clockworkHook.From, "400");
}
return(new StatusCodeResult(200));
}