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I'm learning ROS and I'm trying to populate data from my server to spinner. my JSON is:
{"topic": "/waypoints", "msg": {"waypoints": [{"header": {"stamp": {"secs": 0, "nsecs": 0}, "frame_id": "map", "seq": 0}, "pose": {"position": {"y": -140.901899144836, "x": 44.36469369653882, "z": 0.0}, "ori...