public async Task HandleAsync(IUpdateContext context, UpdateDelegate next)
{
await next(context).ConfigureAwait(false);
if (!context.Items.ContainsKey(nameof(WebhookResponse)))
{
return;
}
dynamic request = context.Items[nameof(WebhookResponse)];
if (context.IsWebhook())
{
var httpContext = (HttpContext)context.Items[nameof(HttpContext)];
if (httpContext.Response.HasStarted)
{
// ToDo use logger and ignore
throw new InvalidOperationException("");
}
string method = request.MethodName;
HttpContent httpContent = request.ToHttpContent();
string json = await httpContent.ReadAsStringAsync()
.ConfigureAwait(false);
json = json.Insert(json.Length - 1, $@",""method"":""{method}""");
httpContext.Response.StatusCode = 201;
httpContext.Response.ContentType = "application/json";
await httpContext.Response.WriteAsync(json, Encoding.UTF8)
.ConfigureAwait(false);
}
else
{
await context.Bot.Client.MakeRequestAsync(request)
.ConfigureAwait(false);
}
}
/// <summary>
/// Gets the cancellation token for the current webhook HTTP request, if available,
/// otherwise returns a default empty token.
/// </summary>
public static CancellationToken GetCancellationTokenOrDefault(this IUpdateContext context) =>
context.IsWebhook()
? ((HttpContext)context.Items[nameof(HttpContext)]).RequestAborted
: CancellationToken.None;