Databases
StackOverflow2013
Postsdbo
PO.NET Web API MessageHandler Timing Out
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO.NET Web API MessageHandler Timing Out
    primarykey
    data
    text
    <p>This question arose when working with the <a href="https://github.com/thinktecture/Thinktecture.IdentityModel.40" rel="nofollow">Thinktecture.IdentityModel.40 library</a> (which is used for authentication in .NET's Web API), however it seems to apply more generally to MessageHandlers / DelegateHandlers. The SendAsync(..) function of the AuthenticationHandler class modifies the Web API's response using a ContinueWith(..) call:</p> <pre><code>return base.SendAsync(request, cancellationToken).ContinueWith( (task) =&gt; { var response = task.Result; if (response.StatusCode == HttpStatusCode.Unauthorized) { SetAuthenticateHeader(response); } return response; } ); </code></pre> <p><a href="https://github.com/thinktecture/Thinktecture.IdentityModel.40/blob/master/IdentityModel/Thinktecture.IdentityModel/Tokens/Http/AuthenticationHandler.cs" rel="nofollow">REFERENCE</a></p> <p>The first request to the Web API works fine. All subsequent requests timeout. Using Fiddler, absolutely no response is received for anything after the first request. I thought it may be a caching issue, so I tacked on a couple headers:</p> <pre><code>Cache-Control: no-cache Pragma: no-cache Expires: -1 </code></pre> <p>But these had no effect. If I update the code to:</p> <pre><code>return base.SendAsync(request, cancellationToken).ContinueWith( (task) =&gt; { .. } , TaskContinuationOptions.ExecuteSynchronously ); </code></pre> <p>Then the issue is resolved.</p> <p>I've read that the order that configurations are applied in the Global.asax can affect MessageHandlers. I've tried rearranging these, but this did not seem to have any affect:</p> <pre><code>GlobalConfiguration.Configuration.Services.Replace(typeof(IHttpControllerSelector), new AreaHttpControllerSelector(GlobalConfiguration.Configuration)); XmlConfigurator.Configure();//Applies Log4Net configuration AreaRegistration.RegisterAllAreas(); AuthenticationConfig.ConfigureGlobal(GlobalConfiguration.Configuration);//Applies Thinktecture's AuthenticationHandler FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); Bootstrapper.Initialise();//Applies dependency injection </code></pre> <p>At the moment I have a solution, but it is unsatisfying because I do not understand the cause of the issue. Am I missing something obvious?</p> <p>Thanks.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USmakerplays
    1. USmakerplays
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO.NET Web API MessageHandler Timing Out
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO.NET Web API MessageHandler Timing Out
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO.NET Web API MessageHandler Timing Out
      1. USvikingben
      1. VTFavorite
    1. COCurrently I am dealing with something similar I am also using the thinkindentity model as to enable CORS. Using a client like fiddler I make 10 or so requests just fine then after a while it will start to timeout and return null objects. After your first requests does it respond at all or do you just have to kill it off ? Also for some reason each request I make sends two OPTIONS requests, and two POSTS I'm thinking mine is a configuration issue.
      singulars
      1. PO.NET Web API MessageHandler Timing Out
      1. USvikingben
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload