private static HttpClient PrepareHttpClient(HttpContext httpContext, CallbackTemplate callbackTemplate)
{
var factory = httpContext.RequestServices.GetService <IHttpClientFactory>();
var httpClient = factory.CreateClient();
httpClient.Timeout = TimeSpan.FromMilliseconds(callbackTemplate.Timeout.GetValueOrDefault());
return(httpClient);
}
private async Task DelayRequest(CallbackTemplate callbackTemplate, long elapsedMilliseconds)
{
var remainingDelay = TimeSpan.FromMilliseconds(callbackTemplate.Delay.GetValueOrDefault() - elapsedMilliseconds);
if (elapsedMilliseconds < remainingDelay.TotalMilliseconds)
{
_logger.LogDebug("Callback delay: {0} milliseconds", remainingDelay.TotalMilliseconds);
await Task.Delay(remainingDelay);
}
}
private static HttpRequestMessage PrepareHttpRequest(CallbackTemplate callbackTemplate, MockacoOptions options)
{
var request = new HttpRequestMessage(new HttpMethod(callbackTemplate.Method), callbackTemplate.Url);
var formatting = callbackTemplate.Indented.GetValueOrDefault(true) ? Formatting.Indented : default;
if (callbackTemplate.Body != null)
{
request.Content = callbackTemplate.Headers?.ContainsKey(HttpHeaders.ContentType) == true
? new StringContent(callbackTemplate.Body.ToString(), Encoding.UTF8, callbackTemplate.Headers[HttpHeaders.ContentType])
: new StringContent(callbackTemplate.Body.ToString(formatting));
}
PrepareHeaders(callbackTemplate, request, options);
return(request);
}
private static void PrepareHeaders(CallbackTemplate callBackTemplate, HttpRequestMessage httpRequest, MockacoOptions options)
{
if (callBackTemplate.Headers != null)
{
foreach (var header in callBackTemplate.Headers.Where(h => h.Key != HttpHeaders.ContentType))
{
if (httpRequest.Headers.Contains(header.Key))
{
httpRequest.Headers.Remove(header.Key);
}
httpRequest.Headers.Add(header.Key, header.Value);
}
}
if (!httpRequest.Headers.Accept.Any())
{
httpRequest.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue(options.DefaultHttpContentType));
}
}
private async Task PerformCallback(HttpContext httpContext, CallbackTemplate callbackTemplate, MockacoOptions options, long elapsedMilliseconds)
{
try
{
var request = PrepareHttpRequest(callbackTemplate, options);
var httpClient = PrepareHttpClient(httpContext, callbackTemplate);
await DelayRequest(callbackTemplate, elapsedMilliseconds);
var stopwatch = Stopwatch.StartNew();
_logger.LogDebug("Callback started");
await PerformRequest(request, httpClient);
_logger.LogDebug("Callback finished in {0} ms", stopwatch.ElapsedMilliseconds);
}
catch (Exception ex)
{
_logger.LogError(ex, "Callback error");
}
}
