chore: websocket

src/modules/utils/services/extract-token.utils.ts

@@ -0,0 +1,29 @@
+import { Socket } from "socket.io";
+
+/**
+ * Extracts authentication token from WebSocket client handshake
+ * Supports multiple token sources for flexibility
+ *
+ * @param client - Socket.IO client instance
+ * @returns Authentication token string or undefined if not found
+ */
+export function extractTokenFromClient(client: Socket): string | undefined {
+  // Priority order: auth.token > query.token > headers.authorization
+  const authToken = client.handshake?.auth?.token;
+  if (authToken) {
+    return authToken;
+  }
+
+  const queryToken = client.handshake?.query?.token;
+  if (queryToken && typeof queryToken === "string") {
+    return queryToken;
+  }
+
+  const authHeader = client.handshake?.headers?.authorization;
+  if (authHeader && typeof authHeader === "string") {
+    // Remove 'Bearer ' prefix if present
+    return authHeader.replace(/^Bearer\s+/i, "");
+  }
+
+  return undefined;
+}