c# - WebRequest.GetResponse() Times Out After A Couple of Requests -

i'm calling third party web api update of our data on side. i've been submitting 5 jobs in quick succession and, without fail, first 2 requests working properly. last 3 never update. application seems indicating request timing out, want make sure i'm not messing on side.

i'm calling function below action<string, dictionary<string,object>> delegate , i'm using begininvoke call api asynchronously. don't care response. misunderstanding webrequest.getresponse() or problem endpoint?

    private void updatejobinfo(string jobid, dictionary<string, object> updates)     {         var postdata = getjsonencodedvalues(updates);         var request = webrequest.create(string.format(jobresultendpoint, _username, jobid));          request.contenttype = "application/json; charset=utf-8";         request.method = webrequestmethods.http.put;         request.headers[httprequestheader.authorization] = getauthenticationcredentials();         request.getrequeststream().write(encoding.ascii.getbytes(postdata), 0, encoding.ascii.getbytes(postdata).length);          request.getresponse();     } 

you're not disposing of response (or indeed request stream, although that's different matter). means you're leaving connection server open until finalizer happens notice response can finalized. connections pooled (by default) 2 connections per url. later requests waiting earlier responses finalized before can obtain connection.

better code:

// want? non-ascii data? byte[] binarypostdata = encoding.ascii.getbytes(postdata); using (var requeststream = request.getrequeststream()) {     requeststream.write(binarypostdata, 0, binarypostdata.length); }  using (var response = request.getresponse()) {     // don't care response, have fetch     // , dispose it. }