/// <summary>
/// Send request
/// </summary>
/// <param name="httpRequest"></param>
/// <param name="httpMethod"></param>
/// <param name="ct"></param>
/// <returns></returns>
private async Task <IHttpResponse> SendAsync(IHttpRequest httpRequest,
HttpMethod httpMethod, CancellationToken ct)
{
if (!(httpRequest is HttpRequest wrapper))
{
throw new InvalidOperationException("Bad request");
}
using (var client = _factory.CreateClient(httpRequest.ResourceId ??
HttpHandlerFactory.DefaultResourceId)) {
if (httpRequest.Options.Timeout.HasValue)
{
client.Timeout = httpRequest.Options.Timeout.Value;
}
var sw = Stopwatch.StartNew();
_logger.Verbose("Sending {method} request to {uri}...", httpMethod,
httpRequest.Uri);
// We will use this local function for Exception formatting
HttpRequestException generateHttpRequestException(Exception e)
{
var errorMessage = e.Message;
if (e.InnerException != null)
{
errorMessage += " - " + e.InnerException.Message;
}
_logger.Warning("{method} to {uri} failed (after {elapsed}) : {message}!",
httpMethod, httpRequest.Uri, sw.Elapsed, errorMessage);
_logger.Verbose(e, "{method} to {uri} failed (after {elapsed}) : {message}!",
httpMethod, httpRequest.Uri, sw.Elapsed, errorMessage);
return(new HttpRequestException(errorMessage, e));
}
using (var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(ct)) {
try {
wrapper.Request.Method = httpMethod;
using (var response = await client.SendAsync(wrapper.Request, linkedCts.Token)) {
var result = new HttpResponse {
ResourceId = httpRequest.ResourceId,
StatusCode = response.StatusCode,
Headers = response.Headers,
ContentHeaders = response.Content.Headers,
Content = await response.Content.ReadAsByteArrayAsync()
};
if (result.IsError())
{
_logger.Warning("{method} to {uri} returned {code} (took {elapsed}).",
httpMethod, httpRequest.Uri, response.StatusCode, sw.Elapsed,
result.GetContentAsString(Encoding.UTF8));
}
else
{
_logger.Verbose("{method} to {uri} returned {code} (took {elapsed}).",
httpMethod, httpRequest.Uri, response.StatusCode, sw.Elapsed);
}
return(result);
}
}
catch (HttpRequestException e) {
var requestEx = generateHttpRequestException(e);
throw requestEx;
}
catch (OperationCanceledException e) {
if (ct.IsCancellationRequested)
{
// Cancel was called. We will call ct.ThrowIfCancellationRequested() because the
// token that is passed to the exception is the linked token. This way,
// information about usage of linked tokens will not be leaked to the caller.
ct.ThrowIfCancellationRequested();
}
// Operation timed out.
var requestEx = generateHttpRequestException(e);
throw requestEx;
}
}
}
}
