Simple Fastly C# Client

Fastly.cs

public class Fastly
{
    public Fastly(string fastlyKey)
    {
        _fastlyKey = fastlyKey;
    }

    private readonly string _fastlyKey;

    private const string EntryPoint = "https://api.fastly.com";

    public Task Purge(string uri)
    {
        return Purge(new Uri(uri));
    }

    public Task Purge(Uri uri)
    {
        return SendAsync("PURGE", uri);
    }

    public Task PurgeKey(string service, string key)
    {
        var uri = $"{EntryPoint}/service/{WebUtility.UrlEncode(service)}/purge/{key}";

        return SendAsync("POST", new Uri(uri));
    }

    public Task PurgeAll(string service)
    {
        var uri = $"{EntryPoint}/service/{WebUtility.UrlEncode(service)}/purge_all";

        return SendAsync("POST", new Uri(uri));
    }

    private Task SendAsync(string method, Uri requestUri)
    {
        var request = new HttpRequestMessage
        {
            Method = new HttpMethod(method),
            RequestUri = requestUri
        };

        request.Headers.Add("Accept", "application/json");
        request.Headers.Add("Fastly-Key", _fastlyKey);

        var client = new HttpClient();

        return client.SendAsync(request);
    }
}