Custom header to HttpClient request

Question

How do I add a custom header to a HttpClient request? I am using PostAsJsonAsync method to post the JSON. The custom header that I would need to b

Answer 1

Here is an answer based on that by Anubis (which is a better approach as it doesn't modify the headers for every request) but which is more equivalent to the code in the original question:

using Newtonsoft.Json;
...

    var client = new HttpClient();
    var httpRequestMessage = new HttpRequestMessage
        {
            Method = HttpMethod.Post,
            RequestUri = new Uri("https://api.clickatell.com/rest/message"),
            Headers = { 
                { HttpRequestHeader.Authorization.ToString(), "Bearer xxxxxxxxxxxxxxxxxxxx" },
                { HttpRequestHeader.Accept.ToString(), "application/json" },
                { "X-Version", "1" }
            },
            Content = new StringContent(JsonConvert.SerializeObject(svm))
        };

    var response = client.SendAsync(httpRequestMessage).Result;