Func <HttpClient, object[], Task> buildVoidTaskFuncForMethod(RestMethodInfo restMethod)
{
return(async(client, paramList) => {
var factory = BuildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath);
var rq = factory(paramList);
var resp = await client.SendAsync(rq);
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(resp, settings);
}
});
}
Func <HttpClient, object[], Task <T> > BuildTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
var ret = BuildCancellableTaskFuncForMethod <T>(restMethod);
return((client, paramList) => {
if (restMethod.CancellationToken != null)
{
return ret(client, paramList.OfType <CancellationToken>().FirstOrDefault(), paramList);
}
return ret(client, CancellationToken.None, paramList);
});
}
private void AddInterfaceHttpMethods(Type interfaceType, Dictionary <string, List <RestMethodInfo> > methods)
{
foreach (var methodInfo in interfaceType.GetMethods())
{
var attrs = methodInfo.GetCustomAttributes(true);
var hasHttpMethod = attrs.OfType <HttpMethodAttribute>().Any();
if (hasHttpMethod)
{
if (!methods.ContainsKey(methodInfo.Name))
{
methods.Add(methodInfo.Name, new List <RestMethodInfo>());
}
var restinfo = new RestMethodInfo(interfaceType, methodInfo, settings);
methods[methodInfo.Name].Add(restinfo);
}
}
}
Func <HttpClient, object[], IObservable <T> > buildRxFuncForMethod <T>(RestMethodInfo restMethod)
{
var taskFunc = buildCancellableTaskFuncForMethod <T>(restMethod);
return((client, paramList) => {
return new TaskToObservable <T>(ct => {
var methodCt = CancellationToken.None;
if (restMethod.CancellationToken != null)
{
methodCt = paramList.OfType <CancellationToken>().FirstOrDefault();
}
// link the two
var cts = CancellationTokenSource.CreateLinkedTokenSource(methodCt, ct);
return taskFunc(client, cts.Token, paramList);
});
});
}
Func <HttpClient, object[], Task> buildVoidTaskFuncForMethod(RestMethodInfo restMethod)
{
return(async(client, paramList) => {
var factory = buildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = factory(paramList);
var ct = CancellationToken.None;
if (restMethod.CancellationToken != null)
{
ct = paramList.OfType <CancellationToken>().FirstOrDefault();
}
using (var resp = await client.SendAsync(rq, ct).ConfigureAwait(false)) {
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(rq.RequestUri, restMethod.HttpMethod, resp, settings).ConfigureAwait(false);
}
}
});
}
Func <HttpClient, object[], IObservable <T> > buildRxFuncForMethod <T>(RestMethodInfo restMethod)
where T : class
{
var taskFunc = buildTaskFuncForMethod <T>(restMethod);
return((client, paramList) => {
var ret = new FakeAsyncSubject <T>();
taskFunc(client, paramList).ContinueWith(t => {
if (t.Exception != null)
{
ret.OnError(t.Exception);
}
else
{
ret.OnNext(t.Result);
ret.OnCompleted();
}
});
return ret;
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > buildCancellableTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
return(async(client, ct, paramList) => {
var factory = buildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = factory(paramList);
var resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct).ConfigureAwait(false);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
// NB: This double-casting manual-boxing hate crime is the only way to make
// this work without a 'class' generic constraint. It could blow up at runtime
// and would be A Bad Idea if we hadn't already vetted the return type.
return (T)(object)resp;
}
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(rq.RequestUri, restMethod.HttpMethod, resp, restMethod.RefitSettings).ConfigureAwait(false);
}
if (restMethod.SerializedReturnType == typeof(HttpContent))
{
return (T)(object)resp.Content;
}
var ms = new MemoryStream();
using (var fromStream = await resp.Content.ReadAsStreamAsync().ConfigureAwait(false)) {
await fromStream.CopyToAsync(ms, 4096, ct).ConfigureAwait(false);
}
var bytes = ms.ToArray();
var content = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
if (restMethod.SerializedReturnType == typeof(string))
{
return (T)(object)content;
}
return JsonConvert.DeserializeObject <T>(content, settings.JsonSerializerSettings);
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > BuildCancellableTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
return(async(client, ct, paramList) => {
if (client.BaseAddress == null)
{
throw new InvalidOperationException("BaseAddress must be set on the HttpClient instance");
}
var factory = BuildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = factory(paramList);
HttpResponseMessage resp = null;
var disposeResponse = true;
try
{
resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct).ConfigureAwait(false);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
disposeResponse = false; // caller has to dispose
// NB: This double-casting manual-boxing hate crime is the only way to make
// this work without a 'class' generic constraint. It could blow up at runtime
// and would be A Bad Idea if we hadn't already vetted the return type.
return (T)(object)resp;
}
if (!resp.IsSuccessStatusCode)
{
disposeResponse = false;
throw await ApiException.Create(rq.RequestUri, restMethod.HttpMethod, resp, restMethod.RefitSettings).ConfigureAwait(false);
}
if (restMethod.SerializedReturnType == typeof(HttpContent))
{
disposeResponse = false; // caller has to clean up the content
return (T)(object)resp.Content;
}
if (restMethod.SerializedReturnType == typeof(Stream))
{
disposeResponse = false; // caller has to dispose
return (T)(object)await resp.Content.ReadAsStreamAsync().ConfigureAwait(false);
}
using (var stream = await resp.Content.ReadAsStreamAsync().ConfigureAwait(false))
using (var reader = new StreamReader(stream))
{
if (restMethod.SerializedReturnType == typeof(string))
{
return (T)(object)await reader.ReadToEndAsync().ConfigureAwait(false);
}
using (var jsonReader = new JsonTextReader(reader))
{
return serializer.Deserialize <T>(jsonReader);
}
}
}
finally
{
// Ensure we clean up the request
// Especially important if it has open files/streams
rq.Dispose();
if (disposeResponse)
{
resp?.Dispose();
}
}
});
}
Func <object[], HttpRequestMessage> BuildRequestFactoryForMethod(RestMethodInfo restMethod, string basePath, bool paramsContainsCancellationToken)
{
return(paramList =>
{
// make sure we strip out any cancelation tokens
if (paramsContainsCancellationToken)
{
paramList = paramList.Where(o => o == null || o.GetType() != typeof(CancellationToken)).ToArray();
}
var ret = new HttpRequestMessage
{
Method = restMethod.HttpMethod
};
// set up multipart content
MultipartFormDataContent multiPartContent = null;
if (restMethod.IsMultipart)
{
multiPartContent = new MultipartFormDataContent("----MyGreatBoundary");
ret.Content = multiPartContent;
}
var urlTarget = (basePath == "/" ? string.Empty : basePath) + restMethod.RelativePath;
var queryParamsToAdd = new List <KeyValuePair <string, string> >();
var headersToAdd = new Dictionary <string, string>(restMethod.Headers);
for (var i = 0; i < paramList.Length; i++)
{
// if part of REST resource URL, substitute it in
if (restMethod.ParameterMap.ContainsKey(i))
{
urlTarget = Regex.Replace(
urlTarget,
"{" + restMethod.ParameterMap[i] + "}",
settings.UrlParameterFormatter
.Format(paramList[i], restMethod.ParameterInfoMap[i])
.Replace("/", "%2F"),
RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
continue;
}
// if marked as body, add to content
if (restMethod.BodyParameterInfo != null && restMethod.BodyParameterInfo.Item3 == i)
{
var streamParam = paramList[i] as Stream;
var stringParam = paramList[i] as string;
if (paramList[i] is HttpContent httpContentParam)
{
ret.Content = httpContentParam;
}
else if (streamParam != null)
{
ret.Content = new StreamContent(streamParam);
}
else if (stringParam != null)
{
ret.Content = new StringContent(stringParam);
}
else
{
switch (restMethod.BodyParameterInfo.Item1)
{
case BodySerializationMethod.UrlEncoded:
ret.Content = new FormUrlEncodedContent(new FormValueDictionary(paramList[i]));
break;
case BodySerializationMethod.Json:
var param = paramList[i];
switch (restMethod.BodyParameterInfo.Item2)
{
case false:
ret.Content = new PushStreamContent((stream, _, __) =>
{
using (var writer = new JsonTextWriter(new StreamWriter(stream)))
{
serializer.Serialize(writer, param);
}
},
"application/json");
break;
case true:
ret.Content = new StringContent(
JsonConvert.SerializeObject(paramList[i], settings.JsonSerializerSettings),
Encoding.UTF8,
"application/json");
break;
}
break;
}
}
continue;
}
// if header, add to request headers
if (restMethod.HeaderParameterMap.ContainsKey(i))
{
headersToAdd[restMethod.HeaderParameterMap[i]] = paramList[i]?.ToString();
continue;
}
// ignore nulls
if (paramList[i] == null)
{
continue;
}
// for anything that fell through to here, if this is not
// a multipart method, add the parameter to the query string
if (!restMethod.IsMultipart)
{
var attr = restMethod.ParameterInfoMap[i].GetCustomAttribute <QueryAttribute>() ?? new QueryAttribute();
if (DoNotConvertToQueryMap(paramList[i]))
{
queryParamsToAdd.Add(new KeyValuePair <string, string>(restMethod.QueryParameterMap[i], settings.UrlParameterFormatter.Format(paramList[i], restMethod.ParameterInfoMap[i])));
}
else
{
foreach (var kvp in BuildQueryMap(paramList[i], attr.Delimiter))
{
var path = !string.IsNullOrWhiteSpace(attr.Prefix) ? $"{attr.Prefix}{attr.Delimiter}{kvp.Key}" : kvp.Key;
queryParamsToAdd.Add(new KeyValuePair <string, string>(path, settings.UrlParameterFormatter.Format(kvp.Value, restMethod.ParameterInfoMap[i])));
}
}
continue;
}
// we are in a multipart method, add the part to the content
// the parameter name should be either the attachment name or the parameter name (as fallback)
string itemName;
string parameterName;
if (!restMethod.AttachmentNameMap.TryGetValue(i, out var attachment))
{
itemName = restMethod.QueryParameterMap[i];
parameterName = itemName;
}
else
{
itemName = attachment.Item1;
parameterName = attachment.Item2;
}
// Check to see if it's an IEnumerable
var itemValue = paramList[i];
var enumerable = itemValue as IEnumerable <object>;
var typeIsCollection = false;
if (enumerable != null)
{
Type tType = null;
var eType = enumerable.GetType();
if (eType.GetTypeInfo().ContainsGenericParameters)
{
tType = eType.GenericTypeArguments[0];
}
else if (eType.IsArray)
{
tType = eType.GetElementType();
}
// check to see if it's one of the types we support for multipart:
// FileInfo, Stream, string or byte[]
if (tType == typeof(Stream) ||
tType == typeof(string) ||
tType == typeof(byte[]) ||
tType.GetTypeInfo().IsSubclassOf(typeof(MultipartItem)) ||
tType == typeof(FileInfo)
)
{
typeIsCollection = true;
}
}
if (typeIsCollection)
{
foreach (var item in enumerable)
{
AddMultipartItem(multiPartContent, itemName, parameterName, item);
}
}
else
{
AddMultipartItem(multiPartContent, itemName, parameterName, itemValue);
}
}
// NB: We defer setting headers until the body has been
// added so any custom content headers don't get left out.
foreach (var header in headersToAdd)
{
SetHeader(ret, header.Key, header.Value);
}
// NB: The URI methods in .NET are dumb. Also, we do this
// UriBuilder business so that we preserve any hardcoded query
// parameters as well as add the parameterized ones.
var uri = new UriBuilder(new Uri(new Uri("http://api"), urlTarget));
var query = HttpUtility.ParseQueryString(uri.Query ?? "");
foreach (var key in query.AllKeys)
{
queryParamsToAdd.Insert(0, new KeyValuePair <string, string>(key, query[key]));
}
if (queryParamsToAdd.Any())
{
var pairs = queryParamsToAdd.Select(x => HttpUtility.UrlEncode(x.Key) + "=" + HttpUtility.UrlEncode(x.Value));
uri.Query = string.Join("&", pairs);
}
else
{
uri.Query = null;
}
ret.RequestUri = new Uri(uri.Uri.GetComponents(UriComponents.PathAndQuery, UriFormat.UriEscaped), UriKind.Relative);
return ret;
});
}
Func <HttpClient, object[], Task <T> > buildTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
var ret = buildCancellableTaskFuncForMethod <T>(restMethod);
return((client, paramList) => ret(client, CancellationToken.None, paramList));
}
Func <HttpClient, object[], Task> BuildVoidTaskFuncForMethod(RestMethodInfo restMethod)
{
return(async(client, paramList) => {
<< << << < HEAD
var factory = buildRequestFactoryForMethod(restMethod.Name, client.BaseAddress?.AbsolutePath, restMethod.CancellationToken != null);
Func <object[], Task <HttpRequestMessage> > BuildRequestFactoryForMethod(RestMethodInfo restMethod, string basePath, bool paramsContainsCancellationToken)
{
return(async paramList =>
{
// make sure we strip out any cancelation tokens
if (paramsContainsCancellationToken)
{
paramList = paramList.Where(o => o == null || o.GetType() != typeof(CancellationToken)).ToArray();
}
var ret = new HttpRequestMessage
{
Method = restMethod.HttpMethod
};
// set up multipart content
MultipartFormDataContent multiPartContent = null;
if (restMethod.IsMultipart)
{
multiPartContent = new MultipartFormDataContent("----MyGreatBoundary");
ret.Content = multiPartContent;
}
var urlTarget = (basePath == "/" ? string.Empty : basePath) + restMethod.RelativePath;
var queryParamsToAdd = new List <KeyValuePair <string, string> >();
var headersToAdd = new Dictionary <string, string>(restMethod.Headers);
for (var i = 0; i < paramList.Length; i++)
{
// if part of REST resource URL, substitute it in
if (restMethod.ParameterMap.ContainsKey(i))
{
urlTarget = Regex.Replace(
urlTarget,
"{" + restMethod.ParameterMap[i] + "}",
Uri.EscapeDataString(settings.UrlParameterFormatter
.Format(paramList[i], restMethod.ParameterInfoMap[i]) ?? string.Empty),
RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
continue;
}
// if marked as body, add to content
if (restMethod.BodyParameterInfo != null && restMethod.BodyParameterInfo.Item3 == i)
{
if (paramList[i] is HttpContent httpContentParam)
{
ret.Content = httpContentParam;
}
else if (paramList[i] is Stream streamParam)
{
ret.Content = new StreamContent(streamParam);
}
// Default sends raw strings
else if (restMethod.BodyParameterInfo.Item1 == BodySerializationMethod.Default &&
paramList[i] is string stringParam)
{
ret.Content = new StringContent(stringParam);
}
else
{
switch (restMethod.BodyParameterInfo.Item1)
{
case BodySerializationMethod.UrlEncoded:
ret.Content = paramList[i] is string str ? (HttpContent) new StringContent(Uri.EscapeDataString(str), Encoding.UTF8, "application/x-www-form-urlencoded") : new FormUrlEncodedContent(new FormValueMultimap(paramList[i], settings));
break;
case BodySerializationMethod.Default:
#pragma warning disable CS0618 // Type or member is obsolete
case BodySerializationMethod.Json:
#pragma warning restore CS0618 // Type or member is obsolete
case BodySerializationMethod.Serialized:
var content = await serializer.SerializeAsync(paramList[i]).ConfigureAwait(false);
switch (restMethod.BodyParameterInfo.Item2)
{
case false:
ret.Content = new PushStreamContent(
async(stream, _, __) => {
using (stream)
{
await content.CopyToAsync(stream).ConfigureAwait(false);
}
}, content.Headers.ContentType);
break;
case true:
ret.Content = content;
break;
}
break;
}
}
continue;
}
// if header, add to request headers
if (restMethod.HeaderParameterMap.ContainsKey(i))
{
headersToAdd[restMethod.HeaderParameterMap[i]] = paramList[i]?.ToString();
continue;
}
// ignore nulls
if (paramList[i] == null)
{
continue;
}
// for anything that fell through to here, if this is not
// a multipart method, add the parameter to the query string
if (!restMethod.IsMultipart)
{
var attr = restMethod.ParameterInfoMap[i].GetCustomAttribute <QueryAttribute>() ?? new QueryAttribute();
if (DoNotConvertToQueryMap(paramList[i]))
{
if (paramList[i] is IEnumerable paramValues)
{
switch (attr.CollectionFormat)
{
case CollectionFormat.Multi:
foreach (var paramValue in paramValues)
{
queryParamsToAdd.Add(new KeyValuePair <string, string>(
restMethod.QueryParameterMap[i],
settings.UrlParameterFormatter.Format(paramValue, restMethod.ParameterInfoMap[i])));
}
continue;
case CollectionFormat.Csv:
case CollectionFormat.Ssv:
case CollectionFormat.Tsv:
case CollectionFormat.Pipes:
var delimiter = attr.CollectionFormat == CollectionFormat.Csv ? ","
: attr.CollectionFormat == CollectionFormat.Ssv ? " "
: attr.CollectionFormat == CollectionFormat.Tsv ? "\t" : "|";
var formattedValues = paramValues
.Cast <object>()
.Select(v => settings.UrlParameterFormatter.Format(v, restMethod.ParameterInfoMap[i]));
queryParamsToAdd.Add(new KeyValuePair <string, string>(
restMethod.QueryParameterMap[i],
string.Join(delimiter, formattedValues)));
continue;
}
}
queryParamsToAdd.Add(new KeyValuePair <string, string>(restMethod.QueryParameterMap[i], settings.UrlParameterFormatter.Format(paramList[i], restMethod.ParameterInfoMap[i])));
}
else
{
foreach (var kvp in BuildQueryMap(paramList[i], attr.Delimiter))
{
var path = !string.IsNullOrWhiteSpace(attr.Prefix) ? $"{attr.Prefix}{attr.Delimiter}{kvp.Key}" : kvp.Key;
queryParamsToAdd.Add(new KeyValuePair <string, string>(path, settings.UrlParameterFormatter.Format(kvp.Value, restMethod.ParameterInfoMap[i])));
}
}
continue;
}
// we are in a multipart method, add the part to the content
// the parameter name should be either the attachment name or the parameter name (as fallback)
string itemName;
string parameterName;
if (!restMethod.AttachmentNameMap.TryGetValue(i, out var attachment))
{
itemName = restMethod.QueryParameterMap[i];
parameterName = itemName;
}
else
{
itemName = attachment.Item1;
parameterName = attachment.Item2;
}
// Check to see if it's an IEnumerable
var itemValue = paramList[i];
var enumerable = itemValue as IEnumerable <object>;
var typeIsCollection = enumerable != null;
if (typeIsCollection)
{
foreach (var item in enumerable)
{
await AddMultipartItemAsync(multiPartContent, itemName, parameterName, item).ConfigureAwait(false);
}
}
else
{
await AddMultipartItemAsync(multiPartContent, itemName, parameterName, itemValue).ConfigureAwait(false);
}
}
// NB: We defer setting headers until the body has been
// added so any custom content headers don't get left out.
if (headersToAdd.Count > 0)
{
// We could have content headers, so we need to make
// sure we have an HttpContent object to add them to,
// provided the HttpClient will allow it for the method
if (ret.Content == null && !bodylessMethods.Contains(ret.Method))
{
ret.Content = new ByteArrayContent(new byte[0]);
}
foreach (var header in headersToAdd)
{
SetHeader(ret, header.Key, header.Value);
}
}
// NB: The URI methods in .NET are dumb. Also, we do this
// UriBuilder business so that we preserve any hardcoded query
// parameters as well as add the parameterized ones.
var uri = new UriBuilder(new Uri(new Uri("http://api"), urlTarget));
var query = HttpUtility.ParseQueryString(uri.Query ?? "");
foreach (var key in query.AllKeys)
{
queryParamsToAdd.Insert(0, new KeyValuePair <string, string>(key, query[key]));
}
if (queryParamsToAdd.Any())
{
var pairs = queryParamsToAdd.Where(x => x.Key != null && x.Value != null)
.Select(x => Uri.EscapeDataString(x.Key) + "=" + Uri.EscapeDataString(x.Value));
uri.Query = string.Join("&", pairs);
}
else
{
uri.Query = null;
}
ret.RequestUri = new Uri(uri.Uri.GetComponents(UriComponents.PathAndQuery, UriFormat.UriEscaped), UriKind.Relative);
return ret;
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > BuildCancellableTaskFuncForMethod <T, TBody>(RestMethodInfo restMethod)
{
return(async(client, ct, paramList) =>
{
if (client.BaseAddress == null)
{
throw new InvalidOperationException("BaseAddress must be set on the HttpClient instance");
}
var factory = BuildRequestFactoryForMethod(restMethod, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = await factory(paramList).ConfigureAwait(false);
HttpResponseMessage resp = null;
HttpContent content = null;
var disposeResponse = true;
try
{
resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct).ConfigureAwait(false);
content = resp.Content ?? new StringContent(string.Empty);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
disposeResponse = false; // caller has to dispose
// NB: This double-casting manual-boxing hate crime is the only way to make
// this work without a 'class' generic constraint. It could blow up at runtime
// and would be A Bad Idea if we hadn't already vetted the return type.
return (T)(object)resp;
}
if (!resp.IsSuccessStatusCode)
{
disposeResponse = false;
var exception = await ApiException.Create(rq, restMethod.HttpMethod, resp, restMethod.RefitSettings).ConfigureAwait(false);
if (restMethod.IsApiResponse)
{
return ApiResponse.Create <T>(resp, default(T), exception);
}
throw exception;
}
var serializedReturnType = restMethod.IsApiResponse ? restMethod.SerializedGenericArgument : restMethod.SerializedReturnType;
if (serializedReturnType == typeof(HttpContent))
{
disposeResponse = false; // caller has to clean up the content
if (restMethod.IsApiResponse)
{
return ApiResponse.Create <T>(resp, content);
}
return (T)(object)content;
}
if (serializedReturnType == typeof(Stream))
{
disposeResponse = false; // caller has to dispose
var stream = (object)await content.ReadAsStreamAsync().ConfigureAwait(false);
if (restMethod.IsApiResponse)
{
return ApiResponse.Create <T>(resp, stream);
}
return (T)stream;
}
if (serializedReturnType == typeof(string))
{
using (var stream = await content.ReadAsStreamAsync().ConfigureAwait(false))
using (var reader = new StreamReader(stream))
{
var str = (object)await reader.ReadToEndAsync().ConfigureAwait(false);
if (restMethod.IsApiResponse)
{
return ApiResponse.Create <T>(resp, str);
}
return (T)str;
}
}
var body = await serializer.DeserializeAsync <TBody>(content);
if (restMethod.IsApiResponse)
{
return ApiResponse.Create <T>(resp, body);
}
// Unfortunate side-effect of having no 'class' or 'T : TBody' constraints.
// However, we know that T must be the same as TBody because IsApiResponse != true so
// this code is safe at runtime.
return (T)(object)body;
}
finally
{
// Ensure we clean up the request
// Especially important if it has open files/streams
rq.Dispose();
if (disposeResponse)
{
resp?.Dispose();
content?.Dispose();
}
}
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > BuildCancellableTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
return(async(client, ct, paramList) => {
var factory = BuildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = factory(paramList);
var resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct).ConfigureAwait(false);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
// NB: This double-casting manual-boxing hate crime is the only way to make
// this work without a 'class' generic constraint. It could blow up at runtime
// and would be A Bad Idea if we hadn't already vetted the return type.
return (T)(object)resp;
}
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(rq.RequestUri, restMethod.HttpMethod, resp, restMethod.RefitSettings).ConfigureAwait(false);
}
if (restMethod.SerializedReturnType == typeof(HttpContent))
{
return (T)(object)resp.Content;
}
if (restMethod.SerializedReturnType == typeof(Stream))
{
return (T)(object)await resp.Content.ReadAsStreamAsync().ConfigureAwait(false);
}
using (var stream = await resp.Content.ReadAsStreamAsync().ConfigureAwait(false))
using (var reader = new StreamReader(stream)) {
if (restMethod.SerializedReturnType == typeof(string))
{
return (T)(object)await reader.ReadToEndAsync().ConfigureAwait(false);
}
using (var jsonReader = new JsonTextReader(reader)) {
return serializer.Deserialize <T>(jsonReader);
}
}
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > BuildCancellableTaskFuncForMethod <T>(RestMethodInfo restMethod)
{
return(async(client, ct, paramList) => {
var factory = BuildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath, restMethod.CancellationToken != null);
var rq = factory(paramList);
var resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct).ConfigureAwait(false);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
// NB: This double-casting manual-boxing hate crime is the only way to make
// this work without a 'class' generic constraint. It could blow up at runtime
// and would be A Bad Idea if we hadn't already vetted the return type.
return (T)(object)resp;
}
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(rq.RequestUri, restMethod.HttpMethod, resp, restMethod.RefitSettings).ConfigureAwait(false);
}
if (restMethod.SerializedReturnType == typeof(HttpContent))
{
return (T)(object)resp.Content;
}
var content = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
if (restMethod.SerializedReturnType == typeof(string))
{
return (T)(object)content;
}
var deserializedObject = JsonConvert.DeserializeObject <T>(content, settings.JsonSerializerSettings);
// enable message post-processor functionality on resulting object if implements interface,
// so it is possible to access http response message even when resulting type
// of the call is something more specific (e.g. to allow processing of response headers)
if (deserializedObject is IHttpResponseMessagePostProcessor)
{
(deserializedObject as IHttpResponseMessagePostProcessor).PostProcessHttpResponseMessage(resp);
}
return deserializedObject;
});
}
Func <HttpClient, CancellationToken, object[], Task <T> > buildCancellableTaskFuncForMethod <T>(RestMethodInfo restMethod)
where T : class
{
return(async(client, ct, paramList) => {
var factory = BuildRequestFactoryForMethod(restMethod.Name, client.BaseAddress.AbsolutePath);
var rq = factory(paramList);
var resp = await client.SendAsync(rq, HttpCompletionOption.ResponseHeadersRead, ct);
if (restMethod.SerializedReturnType == typeof(HttpResponseMessage))
{
return resp as T;
}
if (!resp.IsSuccessStatusCode)
{
throw await ApiException.Create(resp);
}
var ms = new MemoryStream();
var fromStream = await resp.Content.ReadAsStreamAsync();
await fromStream.CopyToAsync(ms, 4096, ct);
var bytes = ms.ToArray();
var content = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
if (restMethod.SerializedReturnType == typeof(string))
{
return content as T;
}
return JsonConvert.DeserializeObject <T>(content);
});
}
