I have a project where I have users on the backend and I have go-karts run by rosbag which in turn is on the frontend. I want to put my topics in a database but I have no idea what it could be, that's when I found the rosnodejs option. Can anyone help me with how ROS works with nodejs? I can't find one on the internet that is connected to port 9090, which works by default.
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Can you elaborate on what you want to learn about? I don't understand what you mean about port 9090. Have you already looked at the example in https://github.com/RethinkRobotics-opensource/rosnodejs/tree/kinetic-devel/src/examples ? (I'm a contributor to rosnodejs.) – Christian Fritz Feb 18 '22 at 00:01
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Hello! thanks for your reply! I have worked with roslib.js so far with the following code: var ros = new ROSLIB.Ros({ url:'ws://10.0.2.15:9090' }); it used to connect to the ROS and when i started the bag and the roslaunch rosbridge server was connected then, but this roslaunch is not running in the example or it is not connected to the port. – hellokor Feb 18 '22 at 07:16
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rosnodejs is a native node.js client for ROS; roslib.js is a client-side library and uses rosbridge on the server (the robot). These two things are very different from one another. – Christian Fritz Feb 18 '22 at 16:49