add websocket client test

src/api_communication/api_communication/api_listener.py

@@ -84,7 +84,7 @@ class ApiListener(Node):
     async def handle_api(self):
         self.get_logger().info('Starting API')
         self.server = await websockets.serve(self.api_handler, '0.0.0.0', 9001)
-        self.get_logger().info('API started')
+        self.get_logger().info('API started on port 9001')
         await self.server.wait_closed()
 
     def process_image_request(self, message_json):

websocket-client-test.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+import asyncio
+from websockets.sync.client import connect
+
+def hello():
+    with connect("ws://localhost:8765") as websocket:
+        websocket.send("Hello world!")
+        message = websocket.recv()
+        print(f"Received: {message}")
+
+hello()