chore: initial commit

src/Extensions/HttpClientExtensions.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Threading.Tasks;
+
+namespace Novaloop.PaymoApi.Extensions
+{
+    internal static class HttpClientExtensions
+    {
+        internal static void SetApiKeyHeader(this HttpClient client, string apiKey)
+        {
+            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Base64Encode($"{apiKey}:random"));
+        }
+
+        internal static async Task<HttpResponseMessage> PatchAsync(this HttpClient client, string uri, HttpContent content)
+        {
+            var method = new HttpMethod("PATCH");
+            if (client.BaseAddress is null)
+            {
+                throw new ArgumentException("Can not handle 'BaseAddress' null value configuration.");
+            }
+
+            var request = new HttpRequestMessage(method, new Uri(CombineBaseUrlWithSegment(client.BaseAddress.ToString(), uri))) {Content = content};
+            return await client.SendAsync(request);
+        }
+
+        private static string CombineBaseUrlWithSegment(string uri1, string uri2)
+        {
+            return $"{uri1.TrimEnd('/')}/{uri2.TrimStart('/')}";
+        }
+
+        private static string Base64Encode(string plainText)
+        {
+            return Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(plainText));
+        }
+    }
+}