Thank you @Stoune, it was last thing that helped to receive finally working solution. One more, it is need to organize stream file reading and writing to the webrequest buffer. And it possibly to do with that piece of code: $requestStream = $webRequest.GetRequestStream() $fileStream = [System.IO.File]::OpenRead($file) $chunk = New-Object byte[] $bufSize while( $bytesRead = $fileStream.Read($chunk,0,$bufsize) … Read more
For future reference , this worked for me ( I could not use additional query parameter due to project requirements) : HttpWebRequest request = HttpWebRequest.CreateHttp(url); if (request.Headers == null) { request.Headers = new WebHeaderCollection(); } request.Headers[HttpRequestHeader.IfModifiedSince] = DateTime.UtcNow.ToString();
I finally got it with the following code … var boundary = “————————” + DateTime.Now.Ticks; var newLine = Environment.NewLine; var propFormat = “–” + boundary + newLine + “Content-Disposition: form-data; name=\”{0}\”” + newLine + newLine + “{1}” + newLine; var fileHeaderFormat = “–” + boundary + newLine + “Content-Disposition: form-data; name=\”{0}\”; filename=\”{1}\”” + newLine; var … Read more
You have several choices for Async HTTP Clients in Java Java 8: Use the async-http-client formerly called ning http client library. Java 11 and above: JDK now comes with the java.net.http. HttpClient which is fully asynchronous. Square’s OkHttpClient. Supports both sync blocking and async calls with callbacks. Quite popular on Android.
This is a full working example : import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.StringEntity; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; public void callWebService(String soapAction, String soapEnvBody) throws IOException { // Create a StringEntity for the SOAP XML. String body =”<?xml version=\”1.0\” encoding=\”UTF-8\”?><SOAP-ENV:Envelope xmlns:SOAP-ENV=\”http://schemas.xmlsoap.org/soap/envelope/\” xmlns:ns1=\”http://example.com/v1.0/Records\” xmlns:xsd=\”http://www.w3.org/2001/XMLSchema\” xmlns:xsi=\”http://www.w3.org/2001/XMLSchema-instance\” xmlns:SOAP-ENC=\”http://schemas.xmlsoap.org/soap/encoding/\” SOAP-ENV:encodingStyle=\”http://schemas.xmlsoap.org/soap/encoding/\”><SOAP-ENV:Body>”+soapEnvBody+”</SOAP-ENV:Body></SOAP-ENV:Envelope>”; StringEntity stringEntity = new StringEntity(body, “UTF-8”); … Read more
Assuming the problem is that you’re having a hard time getting to the returned content, the easiest path would likely be using async/await if you can use it. Even better would be to switch to HttpClient if you’re using .NET 4.5 since it’s ‘natively’ async. Using .NET 4 and C# 4, you can still use … Read more
The common solution listed on the Internet appears to be to set the KeepAlive property of the HttpWebRequest to false. This can resolve the problem if the root cause is that the connection is expected to be reused even though it was actually closed automatically after some period of time. However, there is a performance … Read more
I had the same issue (Windows 10 and SSL3 / TLS only… not System Default) with a legacy app targeting 4.7.2. My issue was that during the upgrade process over the years we never added in the targetFramework to the system.web > httpRuntime element (Note: it did exist on system.web > compilation element). Before taking … Read more
My preferred way is this. It handles the escaping and parsing for you. WebClient webClient = new WebClient(); webClient.QueryString.Add(“param1”, “value1”); webClient.QueryString.Add(“param2”, “value2”); string result = webClient.DownloadString(“http://theurl.com”);
Yes, there is a limit. The default connection limit is 2 concurrent connections per remote host. This can be overridden. For example, I believe that ASP.NET by default overrides the default to be 10 connections per remote host. From https://msdn.microsoft.com/en-us/library/7af54za5.aspx: The number of connections between a client and server can have a dramatic impact on … Read more