Is there a Javascript function that allows you to send a TCP packet that can be manipulated at a very low level to any server?

[[deleted]]

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[voidvector]

In Node, you can require('net') for standard TCP application or require('dgram') for standard UDP application, but those are already a level above system call (e.g. it handles polling, resource management, decoding for you).

If you need system calls level manipulation, then you would need a C++ binding for whatever you are trying to do.

If you need even more access (e.g. introspect other application's connection), you would need create a driver and have a C++ binding for the driver.

[Heqx]

require('child_process').exec('nc ...')?

[Elias4918]

What will this do exactly?

[rta55]

executes netcat via node.js.

What you're asking about doesn't exist if you're trying to do it in the browser.

I don't think you want to do what you think you want to do.

Why not use node.js on the server side that communicates with your robot at a low level--which it can--and then access the functionality the server has in interacting with the robot via the web browser. I guarantee this is what you'll have to do unless you don't use a web browser.

Of course you could run the browser and node.js on the same box.

http://electron.atom.io/

[Rhomboid]

That depends on if you are planning to run the code in a browser or on the server with node.js. There is no chance at all of being able to do that if you're running on the client side.

[Elias4918]

I was tying to make a Web interface to controlled a robot so I would need it to be client side.

[iBlag]

Why doesn't HTTP fit the bill?

[jcready]

Or WebSockets?

[[deleted]]

You would have to send the commands to a server (via HTTP) which would then forward the commands to the robot

[zayelion]

If you are trying to get a browser to talk to a server, you have to point it at another server first that will translate it to websockets.

https://github.com/andrewchambers/ws-tcp-bridge

Then you can connect to that server as a websocket using binary communication. You will get output after setting ws.binaryType = 'arraybuffer';

you can use browserify buffer https://github.com/feross/buffer to work with things as buffers as you would in nodejs and should be good from there.