public ProxyUriDefinition CreateUriDefinition(ProxyDescriptor descriptor, string regionKey, string targetMethodName)
{
var uriBuilder = RoundRobinManager.RoundRobinUri(regionKey);
if (uriBuilder == null)
{
throw new ArgumentNullException(nameof(uriBuilder));
}
var uriDefinition = new ProxyUriDefinition(uriBuilder);
if (!string.IsNullOrEmpty(descriptor.Route))
{
if (targetMethodName.ToLower() == HttpMethod.Get.Method.ToLower())
{
uriDefinition.UriBuilder.Path = $"{descriptor.Route}/";
}
else
{
if (targetMethodName.StartsWith("/"))
{
targetMethodName = targetMethodName.Substring(1);
}
var routeTemplate = TemplateParser.Parse(targetMethodName);
uriDefinition.ResolveTemplate(routeTemplate, descriptor.Route, targetMethodName);
}
}
return(uriDefinition);
}
protected virtual void EnsureTemplate(ProxyMethodDescriptor descriptor,
ProxyUriDefinition proxyUriDefinition,
RequestContext requestContext,
IDictionary <string, object> argsDic,
List <string> keys)
{
if (descriptor.Template.HasValue())
{
if (proxyUriDefinition.HasParameter)
{
for (int i = 0; i < proxyUriDefinition.ParameterParts.Count; i++)
{
var key = keys[i];
proxyUriDefinition.UriBuilder.Path += ($"/{WebUtility.UrlEncode(requestContext.Args[i]?.ToString())}");
argsDic.Remove(key);
}
}
}
}
public async Task <RequestDescriptor> CreateDescriptorAsync(RequestContext context)
{
HttpRequestMessage request = CreateHttpRequest(context);
var proxyDescriptor = _typeManager.ProxyDescriptors.FirstOrDefault(x => x.ProxyType == context.ProxyType);
if (proxyDescriptor == null)
{
throw new ArgumentOutOfRangeException("Proxy type could not be found!");
}
var regionKey = proxyDescriptor.RegionKey;
ProxyMethodDescriptor methodDescriptor;
if (!proxyDescriptor.Methods.TryGetValue(context.TargetMethod, out methodDescriptor))
{
throw new ArgumentOutOfRangeException("Method (Action) info could not be found!");
}
request.Method = methodDescriptor.HttpMethod;
var methodPath = context.TargetMethod.Name;
if (methodDescriptor.Template.HasValue())
{
methodPath = methodDescriptor.Template;
}
ProxyUriDefinition proxyUriDefinition = _endpointManager.CreateUriDefinition(proxyDescriptor, regionKey, methodPath);
TimeSpan? timeout = methodDescriptor.Timeout;
request.RequestUri = proxyUriDefinition.UriBuilder.Uri;
await _streamProvider.CreateRequestContentAsync(context, request, methodDescriptor, proxyUriDefinition);
return(new RequestDescriptor(request,
methodDescriptor,
proxyDescriptor.RegionKey,
timeout));
}
public async Task CreateRequestContentAsync(RequestContext requestContext,
HttpRequestMessage request,
ProxyMethodDescriptor descriptor,
ProxyUriDefinition proxyUriDefinition)
{
await Task.CompletedTask;
var uriBuilder = proxyUriDefinition.UriBuilder;
var argsDic = descriptor.Resolve(requestContext.Args);
var argsCount = argsDic.Count;
var keys = new List <string>(argsDic.Keys);
if (descriptor.HttpMethod == HttpMethod.Post)
{
if (descriptor.IsMultiPartFormData)
{
request.Content = GetMultipartFormDataContent(argsDic);
return;
}
if (argsCount == 1)
{
request.Content = SerializeToString(argsDic.First().Value);
}
else
{
request.Content = SerializeToString(argsDic);
}
return;
}
else if (descriptor.HttpMethod == HttpMethod.Put)
{
EnsureTemplate(descriptor, proxyUriDefinition, requestContext, argsDic, keys);
argsCount = argsDic.Count;
request.RequestUri = uriBuilder.Uri;
if (argsCount == 1)
{
request.Content = SerializeToString(argsDic.First().Value);
}
else if (argsCount == 2)
{
var firstParameter = argsDic[keys[0]];
var secondParameter = argsDic[keys[1]];
// PUT Request first parameter should be Id or Key
if (firstParameter.GetType().IsPrimitive())
{
uriBuilder.Query += string.Format("&{0}={1}", keys[0], firstParameter);
}
request.RequestUri = uriBuilder.Uri;
request.Content = SerializeToString(secondParameter);
}
}
if (descriptor.HttpMethod == HttpMethod.Get || descriptor.HttpMethod == HttpMethod.Delete)
{
EnsureTemplate(descriptor, proxyUriDefinition, requestContext, argsDic, keys);
request.RequestUri = QueryStringResolver.Parse(uriBuilder, argsDic);
}
}
