From f720f83bdb662ec62fc58b0613fe9b4fa0791d29 Mon Sep 17 00:00:00 2001
From: "Collin M. Barrett" <collinbarrett@users.noreply.github.com>
Date: Wed, 15 Aug 2018 10:12:24 -0500
Subject: [PATCH] add in-memory caches to rules count endpoint

---
 src/FilterLists.Api/V1/Controllers/BaseController.cs  |  5 +++++
 src/FilterLists.Api/V1/Controllers/RulesController.cs | 11 +++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/FilterLists.Api/V1/Controllers/BaseController.cs b/src/FilterLists.Api/V1/Controllers/BaseController.cs
index 37942f9a5..e77e4d6fb 100644
--- a/src/FilterLists.Api/V1/Controllers/BaseController.cs
+++ b/src/FilterLists.Api/V1/Controllers/BaseController.cs
@@ -18,6 +18,11 @@ public BaseController()
         {
         }
 
+        protected BaseController(IMemoryCache memoryCache)
+        {
+            MemoryCache = memoryCache;
+        }
+
         protected BaseController(IMemoryCache memoryCache, SeedService seedService)
         {
             MemoryCache = memoryCache;
diff --git a/src/FilterLists.Api/V1/Controllers/RulesController.cs b/src/FilterLists.Api/V1/Controllers/RulesController.cs
index 9c37fbafa..111980852 100644
--- a/src/FilterLists.Api/V1/Controllers/RulesController.cs
+++ b/src/FilterLists.Api/V1/Controllers/RulesController.cs
@@ -1,6 +1,7 @@
 using System.Threading.Tasks;
 using FilterLists.Services;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Caching.Memory;
 
 namespace FilterLists.Api.V1.Controllers
 {
@@ -8,9 +9,15 @@ public class RulesController : BaseController
     {
         private readonly RuleService ruleService;
 
-        public RulesController(RuleService ruleService) => this.ruleService = ruleService;
+        public RulesController(IMemoryCache memoryCache, RuleService ruleService) : base(memoryCache) =>
+            this.ruleService = ruleService;
 
         [HttpGet]
-        public async Task<IActionResult> Index() => Json(await ruleService.GetCountAll());
+        public async Task<IActionResult> Index() =>
+            Json(await MemoryCache.GetOrCreate("RulesController_Index", entry =>
+            {
+                entry.AbsoluteExpirationRelativeToNow = FourHoursFromNow;
+                return ruleService.GetCountAll();
+            }));
     }
 }
\ No newline at end of file