Azure App Service supports HTTP 2.0. The major advance of HTTP/1.1 was the use of persistent connections to service multiple requests in a row. In HTTP/2, a persistent connection can be used to service multiple simultaneous requests.
This blog will demonstrate how you can send HTTP 2.0 Request to app service for testing using C#:
Step 1:
Go to > App Service > Configuration > Enable HTTP 2.0
Step 2:
Create a .Net Core Console Application / Web Application as per requirement . In this example I have taken a .Net Core Console Application:
var client = new HttpClient() { BaseAddress = new Uri("https://<>.azurewebsites.net") };
Console.WriteLine("Sending HTTP 2.0 Request.");
// HTTP/2 request
using (var request = new HttpRequestMessage(HttpMethod.Get, "/") { Version = new Version(2, 0) })
using (var response = await client.SendAsync(request))
Console.WriteLine(response);
The HTTPClient class has DefaultRequestVersion property with which you can set the default version of the requests as below:
var SecondRequest = new HttpClient()
{
BaseAddress = new Uri("https://<>.azurewebsites.net"),
DefaultRequestVersion = new Version(2, 0)
};
// HTTP/2 is default
using (var response = await SecondRequest.GetAsync("/"))
Console.WriteLine(response);
You should be able to see a successful HTTP Response once the code executes:
For more information you can refer the below documents:
- HttpClient Class (System.Net.Http) | Microsoft Learn
- HttpClient.DefaultRequestVersion Property (System.Net.Http) | Microsoft Learn