Fixed SSE

lib/sse.go

@@ -99,34 +99,27 @@ func HandleIncomingMessages(c echo.Context, pubsub pubsub.PubSubMessage, client
 	var mutex sync.Mutex
 
 	for {
-		// Receive messages using the context of the request, which is cancelled when the client disconnects
 		msg, err := pubsub.ReceiveMessage(c.Request().Context())
 		if err != nil {
 			if err == context.Canceled {
-				// Log when the client disconnects and stop the message forwarding
-				LogInfo.Printf("Client disconnected, stopping message forwarding")
+				// The client has disconnected. Stop trying to send messages.
 				return
 			}
-			// Log errors other than client disconnection
 			LogError.Printf("Failed to receive message: %v", err)
 			return
 		}
 
-		// Prepare the data string to be sent as an SSE
 		data := fmt.Sprintf("data: %s\n\n", msg.Payload)
 
-		// Locking before writing to the response writer to avoid concurrent write issues
 		mutex.Lock()
 		if c.Response().Writer != nil {
 			_, err := c.Response().Write([]byte(data))
 			if err != nil {
-				// Log failure to write and unlock before returning
 				LogError.Printf("Failed to write message: %v", err)
 				mutex.Unlock()
 				return
 			}
 
-			// Flush the response if possible
 			flusher, ok := c.Response().Writer.(http.Flusher)
 			if ok {
 				flusher.Flush()
@@ -136,7 +129,5 @@ func HandleIncomingMessages(c echo.Context, pubsub pubsub.PubSubMessage, client
 		} else {
 			LogError.Println("Failed to write: ResponseWriter is nil")
 		}
-		// Ensure the mutex is unlocked after processing each message
 		mutex.Unlock()
 	}
-}