Redis setup

AskFm/AskFm.API/AskFm.API.csproj

@@ -18,7 +18,9 @@
         </PackageReference>
         <PackageReference Include="Microsoft.EntityFrameworkCore.Proxies" Version="9.0.0" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.0" />
+        <PackageReference Include="Microsoft.Extensions.Caching.StackExchangeRedis" Version="9.0.0" />
         <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.0" />
+        <PackageReference Include="StackExchange.Redis" Version="2.9.11" />
         <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
     </ItemGroup>
 

AskFm/AskFm.API/Program.cs

@@ -150,6 +150,16 @@ public static void Main(string[] args)
             })
             .AddEntityFrameworkStores<AppDbContext>()
             .AddDefaultTokenProviders();
+
+
+        builder.Services.AddStackExchangeRedisCache(options =>
+        {
+            options.Configuration = builder.Configuration.GetConnectionString("Redis");
+            options.InstanceName = "AskFmCache";
+        });
+
+        builder.Services.AddSingleton<RedisCacheService>();
+
 
         var app = builder.Build();
 

AskFm/AskFm.API/appsettings.json

@@ -1,6 +1,7 @@
 {
   "ConnectionStrings": {
-    "DefaultConnection": "CONNECTIONSTRING"
+    "DefaultConnection": "CONNECTIONSTRING",
+    "Redis": "localhost:6379"
   },
   "Logging": {
     "LogLevel": {

AskFm/AskFm.BLL/Services/IRedisService.cs

@@ -0,0 +1,14 @@
+using Microsoft.Extensions.Caching.Distributed;
+using System.Text.Json;
+
+namespace AskFm.BLL.Services;
+
+public interface IRedisService
+{
+    public Task SetCacheAsync<T>(string key, T value, TimeSpan expirationTime);
+
+    public Task<T?> GetCacheAsync<T>(string key);
+
+    public Task RemoveCacheAsync(string key);
+}
+

AskFm/AskFm.BLL/Services/RedisCacheService.cs

@@ -0,0 +1,37 @@
+using Microsoft.Extensions.Caching.Distributed;
+using System.Text.Json;
+
+namespace AskFm.BLL.Services;
+
+public class RedisCacheService : IRedisService
+{
+    private readonly IDistributedCache _cache;
+
+    public RedisCacheService(IDistributedCache cache)
+    {
+        _cache = cache;
+    }
+
+    public async Task SetCacheAsync<T>(string key, T value, TimeSpan expirationTime)
+    {
+        var options = new DistributedCacheEntryOptions
+        {
+            AbsoluteExpirationRelativeToNow = expirationTime
+        };
+
+        var jsonData = JsonSerializer.Serialize(value);
+        await _cache.SetStringAsync(key, jsonData, options);
+    }
+
+    public async Task<T?> GetCacheAsync<T>(string key)
+    {
+        var jsonData = await _cache.GetStringAsync(key);
+        return jsonData is null ? default : JsonSerializer.Deserialize<T?>(jsonData);
+    }
+
+    public async Task RemoveCacheAsync(string key)
+    {
+        await _cache.RemoveAsync(key);
+    }
+}
+