public async Task <HttpResponseHeaders> InvokeAsync(string methodName, IDictionary <string, object> parameters, IDictionary <string, string>?headers = null)
{
var endpoint = _document.GetEndpoint(_serviceName, methodName);
var contentType = _document.GetRequestContentType(endpoint);
var url = new Uri(new Uri(_hostLocation), endpoint);
using (var client = new HttpClient())
{
HttpResponseMessage response;
using (var request = new MemoryStream())
{
using (var writer = new StreamWriter(request, leaveOpen: true))
{
JsonSerializer.CreateDefault().Serialize(writer, parameters);
}
request.Position = 0;
using (var content = new StreamContent(request))
{
content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
if (headers != null)
{
foreach (var entry in headers)
{
content.Headers.Add(entry.Key, entry.Value);
}
}
response = await client.PostAsync(url, content).ConfigureAwait(false);
}
}
response.EnsureSuccessStatusCode();
return(response.Headers);
}
}
