How do I add header data in HttpClient/PostAsync

Question

using

            var values = new Dictionary<string, string>
            {
               { "thing1", "hello" },
               { "thing2", "world" }
            };
            var content = new FormUrlEncodedContent(values);
            var response = await client.PostAsync("http://www.example.com/recepticle.aspx", content);

            var responseString = await response.Content.ReadAsStringAsync();

I have not seen an examnle with adding headers, only data values

vinicius.ras · Accepted Answer · 2018-10-13 15:39:39Z

2

FormUrlEncodedContent class inherits from HttpContent, which contains the Headers property, which you can use to add/remove/set the http headers.

The Headers property is an instance of HttpContentHeaders, so check that last class' docs to see the available methods and properties you can use to alter the headers you want.

Example:

var content = new FormUrlEncodedContent(values);
content.Headers.Add("MyHeader", "My Value");
content.Headers.ContentType = "application/pdf";

answered Oct 13, 2018 at 15:39

vinicius.ras

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