Get post and get request parameter information through HttpContext in Net5.0

Project scenario:

In net5.0, use httpcontext to get the post and get parameters transmitted in it

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Go directly to the code:

// Get the post parameter idea: read the parameters in the body in the form of a stream

 public async Task Invoke(HttpContext context)
 {
    
    
  	HttpRequest request = context.Request;
    Stream straem = request.Body;
    Encoding encoding = Encoding.UTF8;
    string date = string.Empty;
    using (StreamReader reader = new StreamReader(straem, encoding))
    {
    
    
    	//date就是post传过来的值json格式
       date = reader.ReadToEndAsync().Result;
    }
 }

// get get parameters

 context.Request.QueryString.Value

This sentence can be obtained, and what is read is a string example:
?userid='123'&username='Zhang San'
is such a style