Add API

API/Schema/LibraryConnectors/NetClient.cs

@@ -0,0 +1,69 @@
+using System.Net;
+using System.Net.Http.Headers;
+
+namespace API.Schema.LibraryConnectors;
+
+public class NetClient
+{
+    public static Stream MakeRequest(string url, string authScheme, string auth)
+        {
+            HttpClient client = new();
+            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(authScheme, auth);
+            
+            HttpRequestMessage requestMessage = new ()
+            {
+                Method = HttpMethod.Get,
+                RequestUri = new Uri(url)
+            };
+            try
+            {
+
+                HttpResponseMessage response = client.Send(requestMessage);
+
+                if (response.StatusCode is HttpStatusCode.Unauthorized &&
+                    response.RequestMessage!.RequestUri!.AbsoluteUri != url)
+                    return MakeRequest(response.RequestMessage!.RequestUri!.AbsoluteUri, authScheme, auth);
+                else if (response.IsSuccessStatusCode)
+                    return response.Content.ReadAsStream();
+                else
+                    return Stream.Null;
+            }
+            catch (Exception e)
+            {
+                switch (e)
+                {
+                    case HttpRequestException:
+                        
+                        break;
+                    default:
+                        throw;
+                }
+                return Stream.Null;
+            }
+        }
+
+        public static bool MakePost(string url, string authScheme, string auth)
+        {
+            HttpClient client = new()
+            {
+                DefaultRequestHeaders =
+                {
+                    { "Accept", "application/json" },
+                    { "Authorization", new AuthenticationHeaderValue(authScheme, auth).ToString() }
+                }
+            };
+            HttpRequestMessage requestMessage = new ()
+            {
+                Method = HttpMethod.Post,
+                RequestUri = new Uri(url)
+            };
+            HttpResponseMessage response = client.Send(requestMessage);
+            
+            if(response.StatusCode is HttpStatusCode.Unauthorized && response.RequestMessage!.RequestUri!.AbsoluteUri != url)
+                return MakePost(response.RequestMessage!.RequestUri!.AbsoluteUri, authScheme, auth);
+            else if (response.IsSuccessStatusCode)
+                return true;
+            else 
+                return false;
+        }
+}