Séparation des services

BlazorCanvas/BlazorCanvas.Server/Components/Data/RedisService.cs

@@ -0,0 +1,36 @@
+using Newtonsoft.Json;
+using StackExchange.Redis;
+
+namespace BlazorCanvas.Server.Components.Data;
+
+// https://developer.redis.com/develop/dotnet/streams/stream-basics/
+
+public class RedisService: IRedisService {
+    private IConnectionMultiplexer _cache;
+    private ChannelMessageQueue _channel;
+
+    public RedisService(IConnectionMultiplexer cache) {
+        _cache = cache;
+        _channel = _cache.GetSubscriber().Subscribe(RedisChannel.Literal("lol"));
+    }
+
+    /// <summary>
+    /// Version Pub/Sub
+    /// </summary>
+    public async Task<CanvasCommand?> Subscribe(CancellationToken cToken) {
+        var mess = await _channel.ReadAsync(cToken);
+        var comm = JsonConvert.DeserializeObject<CanvasCommand>(mess.Message);
+        if (comm is not null)
+            return comm;
+        else return null;
+    }
+
+    /// <summary>
+    /// Version Pub/Sub
+    /// </summary>
+    /// <param name="command"></param>
+    public async void Publish(CanvasCommand command) {
+        CanvasCommand cm = new(command);
+        await _cache.GetSubscriber().PublishAsync(_channel.Channel, JsonConvert.SerializeObject(cm));
+    }
+}