/// <summary>
/// Sends request to the server and deserializes response to an instance of <typeparamref name="TResult" /> using JSON serializer.
/// </summary>
/// <typeparam name="TResult"></typeparam>
/// <param name="uriParts">The URI parts.</param>
/// <param name="httpMethod">The HTTP method.</param>
/// <param name="requestHeaders">The request headers.</param>
/// <param name="streamProvider">The stream provider.</param>
/// <param name="streamContentType">The stream content type.</param>
/// <param name="cancellationToken">The cancellation token.</param>
public Task <TResult> SendWithStreamBodyAsync <TResult>(
UriParts uriParts,
HttpMethod httpMethod,
IEnumerable <KeyValuePair <string, string> > requestHeaders,
Func <CancellationToken, Task <Stream> > streamProvider,
string streamContentType,
CancellationToken cancellationToken)
{
return(this.SendInternalAsync <TResult>(
uriParts,
httpMethod,
requestHeaders,
innerCt => CreateBase64StreamContentAsync(streamProvider, streamContentType, innerCt),
cancellationToken));
}
private Task <T> SendInternalAsync <T>(
UriParts uriParts,
HttpMethod httpMethod,
IEnumerable <KeyValuePair <string, string> > requestHeaders,
Func <CancellationToken, Task <HttpContent> > requestContentProvider,
CancellationToken cancellationToken)
{
return(this.httpClientWrapper.SendAsync(
new HttpRequest <T>(
new TransformableUriBuilder(transformersSourceValues => GetCompleteUri(transformersSourceValues, uriParts)),
httpMethod,
requestHeaders.EmptyIfNull().ToList().AsReadOnly(),
requestContentProvider,
async(response, innerCt) =>
{
var matchingAttribute = typeof(T).GetTypeInfo().GetCustomAttributes <HttpStatusCodeToExceptionAttribute>().FirstOrDefault(item => item.StatusCode == response.StatusCode);
if (matchingAttribute != null)
{
throw (Exception)Activator.CreateInstance(matchingAttribute.ExceptionType);
}
if (response.Content == null)
{
return default(T);
}
using (var stream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false))
using (var streamReader = new StreamReader(stream))
using (var reader = new JsonTextReader(streamReader))
{
var serializer = new JsonSerializer();
return serializer.Deserialize <T>(reader);
}
}),
cancellationToken));
}
private static Uri GetCompleteUri(IList <KeyValuePair <Type, object> > transformersSourceValues, UriParts uriParts)
{
var relativeUri = string.Join("/", uriParts.RouteValues.EmptyIfNull().Select(item => GetOrTransform(item, transformersSourceValues)).Select(item => item.ToUrlString()));
var uriBuilder = new UriBuilder(new Uri(uriParts.BaseUri, relativeUri));
var queryString =
SpotifyObjectHelpers.GetPropertyBag(uriParts.QueryStringParameters)
.Select(item => new KeyValuePair <string, object>(item.Key, GetOrTransform(item.Value, transformersSourceValues)))
.GetQueryString();
if (!string.IsNullOrEmpty(queryString))
{
uriBuilder.Query = queryString;
}
return(uriBuilder.Uri);
}
