web api exception : Error while copying content to a stream

Question

User173155391 posted

Http Client throwing error : Error while copying content to a stream

This is my code

            serverUrl = GetServerUri(serverUrl);
            HttpContent content = new StringContent(data.ToString(), Encoding.UTF8, "application/json");
            HttpClient client = new HttpClient(new HttpClientHandler() { UseDefaultCredentials = true });
            client.BaseAddress = new Uri(serverUrl);
            content.Headers.ContentType = new MediaTypeWithQualityHeaderValue("application/json");
            client.DefaultRequestHeaders.Accept.Add(
               new MediaTypeWithQualityHeaderValue("application/json"));
            var response = client.PostAsync(url, content).Result;
            return response.Content.ReadAsStringAsync().Result;

It works fine when i deploy web api in root level.  like : http:\\servername\api\controller\method

But when i deploy web api like this :  http:\\servername\apiname\api\controller\method

This throws this exception.

Any idea 

Answer 1

User-369506445 posted

hi

you must define a custom Routing in your config , please add below Route in your WebApiConfig below like :

public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
             
            config.SuppressDefaultHostAuthentication();
            config.Filters.Add(new HostAuthenticationFilter(OAuthDefaults.AuthenticationType));
             
            config.MapHttpAttributeRoutes();

            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );


// this is a new route
            config.Routes.MapHttpRoute(
               name: "DefaultApi_new",
               routeTemplate: "{apiname}/api/{controller}/{id}",
               defaults: new { id = RouteParameter.Optional }
           );
        }
    }

now you can try both of urls

Answer 2

User283571144 posted

Hi sarathchandrajith,

Do you mean you send the request to this url " http:\\servername\apiname\api\controller\method" not working?

Does the application show 404 error or some other error status?

Have you enable the custom route for your web api?

If you could post more details information, it will be more easily for us to find the solution.

Best Regards,

Brando

Answer 3

User173155391 posted

Hi Brando,

This is the error message : 

Error while copying content to a stream

No i didn't enabled the custom route. But this is the only method throw this error.. All other methods are working as expected from angularjs. This call is from c# and a post call with a content throws this error

Thanks

Sarath 

Answer 4

User-369506445 posted

hi

please refer to below links:

https://stackoverflow.com/questions/33233780/system-net-http-httprequestexception-error-while-copying-content-to-a-stream

https://stackoverflow.com/questions/35724514/web-api-request-throws-error-while-copying-content-to-a-stream

https://social.msdn.microsoft.com/Forums/en-US/ee685fb9-d2aa-44c0-bd17-ea615e838aa6/httpclient-only-works-when-using-httprequestmessage-explicitly?forum=winappswithcsharp

Answer 5

User173155391 posted

Hi,

HttpContent content = new StringContent(data.ToString(), Encoding.UTF8, "application/json");
HttpClient client = new HttpClient(new HttpClientHandler() { UseDefaultCredentials = true });
content.Headers.ContentType = new MediaTypeWithQualityHeaderValue("application/json");
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
string serverNameOne= "http://servername/wespapi/api/task/GetGanttTasks";
string ServerName= "http://servername/api/task/GetGanttTasks";
var response = client.PostAsync(durl1,content).Result;
return response.Content.ReadAsStringAsync().Result;

This is my client code to call web api. All other methods are working fine with serverNameOne  address. only here i have a problem. when i use ServerName without the sub root it works fine. 

Exception details :

- InnerException {"Error while copying content to a stream."} System.Exception {System.Net.Http.HttpRequestException}

Inner Exception  

- InnerException {"The request was aborted: The connection was closed unexpectedly."} System.Exception {System.Net.WebException}

Any luck ?

Thanks

Sarath