C# How to set HttpClient Keep-Alive to false

Question

I had a low performance problem with HTTP requests on .NET. The HTTP GET request to a REST API on the localhost took about 500 ms to complete. I spent a lot of time to fix i

Answer 1

I hope this can help you, I have tested

_client.DefaultRequestHeaders.Connection.Add("Keep-Alive");

Answer 2

Use this code to disable HTTP Keep-Alive on the client:

_http.DefaultRequestHeaders.ConnectionClose = true;

This will set Connection request header to close.

Answer 3

When you set HttpWebRequest.KeepAlive = true the header set is Connection: keep-alive

When you set HttpWebRequest.KeepAlive = false the header set is Connection: close

So you will need

_http.DefaultRequestHeaders.Add("Connection", "close");

Answer 4

I wrote HttpClientHandler, and in the handler just before the request I deleted the header "Connection". In this case, it sets the default "Connection: keep-alive". Even if before that you put it in the HttpClient by default, set properties, etc. Check your handlers.

Answer 5

See code below:

HttpClient cli;
...
cli.DefaultRequestHeaders.Add("Connection", "keep-alive");
cli.DefaultRequestHeaders.Add("Keep-Alive", "600");