Postgres paywall support

Various fixes

VoidCat/Services/InMemory/InMemoryCache.cs

@@ -1,8 +1,10 @@
 using Microsoft.Extensions.Caching.Memory;
+using Newtonsoft.Json;
 using VoidCat.Services.Abstractions;
 
 namespace VoidCat.Services.InMemory;
 
+/// <inheritdoc />
 public class InMemoryCache : ICache
 {
     private readonly IMemoryCache _cache;
@@ -12,30 +14,38 @@ public class InMemoryCache : ICache
         _cache = cache;
     }
 
+    /// <inheritdoc />
     public ValueTask<T?> Get<T>(string key)
     {
-        return ValueTask.FromResult(_cache.Get<T?>(key));
+        var json = _cache.Get<string>(key);
+        if (string.IsNullOrEmpty(json)) return default;
+        
+        return ValueTask.FromResult(JsonConvert.DeserializeObject<T?>(json));
     }
 
+    /// <inheritdoc />
     public ValueTask Set<T>(string key, T value, TimeSpan? expire = null)
     {
+        var json = JsonConvert.SerializeObject(value);
         if (expire.HasValue)
         {
-            _cache.Set(key, value, expire.Value);
+            _cache.Set(key, json, expire.Value);
         }
         else
         {
-            _cache.Set(key, value);
+            _cache.Set(key, json);
         }
 
         return ValueTask.CompletedTask;
     }
 
+    /// <inheritdoc />
     public ValueTask<string[]> GetList(string key)
     {
         return ValueTask.FromResult(_cache.Get<string[]>(key) ?? Array.Empty<string>());
     }
 
+    /// <inheritdoc />
     public ValueTask AddToList(string key, string value)
     {
         var list = new HashSet<string>(GetList(key).Result);
@@ -44,6 +54,7 @@ public class InMemoryCache : ICache
         return ValueTask.CompletedTask;
     }
 
+    /// <inheritdoc />
     public ValueTask RemoveFromList(string key, string value)
     {
         var list = new HashSet<string>(GetList(key).Result);
@@ -52,10 +63,10 @@ public class InMemoryCache : ICache
         return ValueTask.CompletedTask;
     }
 
+    /// <inheritdoc />
     public ValueTask Delete(string key)
     {
         _cache.Remove(key);
         return ValueTask.CompletedTask;
-        ;
     }
 }