wscat3 
Unix-style WebSocket cat (or netcat for websockets).
Installation
npm install -g wscat3
Usage
$ wscat -h
usage: wscat [-h] [-v] [-l PORT] [-b] [-k] [-d] [-s SUBP] [address]
Positional arguments:
address
Optional arguments:
-h, --help Show this help message and exit.
-v, --version Show program's version number and exit.
-l PORT, --listen PORT
Start a websocket server on PORT.
-b, --binary Use binary WebSockets.
-k, --keep-open Do not close the socket after EOF.
-d, --deflate Use per-message deflate.
-s SUBP, --subprotocol SUBP
WebSocket subprotocol
Examples
If you ever used nc, wscat works pretty much the same.
Connect to a server
$ wscat echo.websocket.org
Hello
Hello
Who's there?
Who's there?
^D
Chat
Server:
$ wscat -l 12345
Hi there!
Hi!
It's nice to speak to someone who just dosn't repeat everything I say back at me.
Yeah! Isn't it?!
Sorry, gotta run...
^D
Client:
$ wscat localhost:12345
Hi there!
Hi!
It's nice to speak to someone who just dosn't repeat everything I say back at me.
Yeah! Isn't it?!
Sorry, gotta run...
Transfer a file
Server:
$ wscat -b -l 12345 < ~/Desktop/mycat.jpg
Client:
$ wscat -b localhost:12345 > igotacat.jpg
Note that you can have the client send the file as well, after the connection has been setup wscat does not differentiate between server/client.
Get your bitcoin on
$ echo '{"op":"unconfirmed_sub"}' | wscat -k wss://ws.blockchain.info/inv
The -k option is used to keep the socket open after the command has been sent, allowing us to read the continuous stream of bitcoin transactions.
License
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