adding master api project

Application/API/Master/Heartbeat.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using RestEase;
+using SharedLibraryCore;
+
+namespace IW4MAdmin.Application.API.Master
+{
+    public class Heartbeat
+    {
+        static IMasterApi api;
+
+        public static async Task Send(ApplicationManager mgr, bool firstHeartbeat = false)
+        {
+
+            if (firstHeartbeat)
+            {
+                api = RestClient.For<IMasterApi>("http://127.0.0.1");
+
+                var token = await api.Authenticate(new AuthenticationId()
+                {
+                    Id = mgr.GetApplicationSettings().Configuration().Id
+                });
+
+                api.AuthorizationToken = $"Bearer {token.AccessToken}";
+            }
+
+            var instance = new ApiInstance()
+            {
+                Id = mgr.GetApplicationSettings().Configuration().Id,
+                Uptime = (int)(DateTime.UtcNow - mgr.StartTime).TotalSeconds,
+                Version = (float)Program.Version,
+                Servers = mgr.Servers.Select(s =>
+                            new ApiServer()
+                            {
+                                ClientNum = s.ClientNum,
+                                Game = s.GameName.ToString(),
+                                Gametype = s.Gametype,
+                                Hostname = s.Hostname,
+                                Map = s.CurrentMap.Name,
+                                MaxClientNum = s.MaxClients,
+                                Id = s.GetHashCode(),
+                                Port = (short)s.GetPort()
+                            }).ToList()
+            };
+
+            if (firstHeartbeat)
+            {
+                instance = await api.AddInstance(instance);
+            }
+
+            else
+            {
+                instance = await api.UpdateInstance(instance.Id, instance);
+            }
+        }
+    }
+}