SendTextNoKey

using System.Text;
using Newtonsoft.Json;

//UNCOMMENT TO GET IT WORK
//class SendText
{
    private static readonly string key = "API KEY HERE";
    private static readonly string endpoint = "https://api.cognitive.microsofttranslator.com";

    // location, also known as region.
    // required if you're using a multi-service or regional (not global) resource. It can be found in the Azure portal on the Keys and Endpoint page.
    private static readonly string location = "swedencentral";
    
    public async Task<string> Translate(string translateable, string inputLang, string outputLang)
    {
        // Input and output languages are defined as parameters.
        string route = String.Format("/translate?api-version=3.0&from={0}&to={1}&", inputLang, outputLang);
        string textToTranslate = translateable;
        object[] body = new object[] { new { Text = textToTranslate } };
        var requestBody = JsonConvert.SerializeObject(body);

        using (var client = new HttpClient())
        using (var request = new HttpRequestMessage())
        {
            // Build the request.
            request.Method = HttpMethod.Post;
            request.RequestUri = new Uri(endpoint + route);
            request.Content = new StringContent(requestBody, Encoding.UTF8, "application/json");
            request.Headers.Add("Ocp-Apim-Subscription-Key", key);
            // location required if you're using a multi-service or regional (not global) resource.
            request.Headers.Add("Ocp-Apim-Subscription-Region", location);

            // Send the request and get response.
            HttpResponseMessage response = await client.SendAsync(request).ConfigureAwait(false);
            // Read response as a string.
            string result = await response.Content.ReadAsStringAsync();
            return result;
        }

    }

}