New: Ping Endpoint

src/Prowlarr.Http/Ping/PingController.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using NzbDrone.Common.Cache;
+using NzbDrone.Core.Configuration;
+using Prowlarr.Http.Ping;
+
+namespace Prowlarr.Http
+{
+    public class PingController : Controller
+    {
+        private readonly IConfigRepository _configRepository;
+        private readonly ICached<IEnumerable<Config>> _cache;
+
+        public PingController(IConfigRepository configRepository, ICacheManager cacheManager)
+        {
+            _configRepository = configRepository;
+            _cache = cacheManager.GetCache<IEnumerable<Config>>(GetType());
+        }
+
+        [AllowAnonymous]
+        [HttpGet("/ping")]
+        [Produces("application/json")]
+        public ActionResult<PingResource> GetStatus()
+        {
+            try
+            {
+                _cache.Get("ping", _configRepository.All, TimeSpan.FromSeconds(5));
+            }
+            catch (Exception)
+            {
+                return StatusCode(StatusCodes.Status500InternalServerError, new PingResource
+                {
+                    Status = "Error"
+                });
+            }
+
+            return StatusCode(StatusCodes.Status200OK, new PingResource
+            {
+                Status = "OK"
+            });
+        }
+    }
+}

src/Prowlarr.Http/Ping/PingResource.cs

@@ -0,0 +1,7 @@
+namespace Prowlarr.Http.Ping
+{
+    public class PingResource
+    {
+        public string Status { get; set; }
+    }
+}