Set Authorization Header of HttpClient

Question

I have the following code, and I want to set the Authorization of the post request to be like this:

Authorization:key=somevalue

using (HttpClient client = new HttpClient())
{
     using (StringContent jsonContent = new StringContent(json))
     {
         jsonContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");

         using (HttpResponseMessage response = await client.PostAsync("https://android.googleapis.com/gcm/send", jsonContent))
         {
            var reponseString = await response.Content.ReadAsStringAsync();
         }
     }
}

how to do this? I am really struggling and the following statement

client.DefaultRequestHeaders.Add("Authorization", "key=" + apiKey);

thrown the following exception

An exception of type 'System.FormatException' occurred in System.Net.Http.dll but was not handled in user code

Answer 1

I solved this by the following line of code.

client.DefaultRequestHeaders.Authorization =
       new AuthenticationHeaderValue("key", "=" + apiKey);

Answer 2

Not sure if this is still running, but basic auth key and something like a 64 hash authed key would be added to something like a REST call like:

var httpClient2 = new HttpClient();
var uri = new Uri("<someuri>");
var tokenKey = "<sometokenkey>");
var httpContent = new StringContent("<some body or serialized thing>", System.Text.Encoding.UTF8, "application/json");

httpClient2.BaseAddress = new Uri(uri);
httpClient2.DefaultRequestHeaders.Accept.Clear();
httpClient2.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient2.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", tokenKey);

response = await httpClient2.PostAsync(uri, httpContent);