unable to configure socket.io to start listening on IPv4 address

While setting up IPV4 in Socket.IO, I encountered the following error:

/var/www/js/AndroRAT/node_modules/socket.io/lib/index.js:279
  opts.path = opts.path || this.path();
        ^

TypeError: Cannot create property 'path' on string '0.0.0.0'
    at Server.listen.Server.attach (/var/www/js/AndroRAT/node_modules/socket.io/lib/index.js:279:13)
    at new Server (/var/www/js/AndroRAT/node_modules/socket.io/lib/index.js:59:17)
    at Function.Server [as listen] (/var/www/js/AndroRAT/node_modules/socket.io/lib/index.js:44:41)
    at Object.<anonymous> (/var/www/js/AndroRAT/index.js:28:20)
    at Module._compile (internal/modules/cjs/loader.js:1147:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
    at Module.load (internal/modules/cjs/loader.js:996:32)
    at Function.Module._load (internal/modules/cjs/loader.js:896:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47

Why Socket.IO would default to listening on IPV6 is beyond me.

Answer №1

  1. It's important to note that 0.0.0.0 is actually an IPV4 address, not IPV6 as previously assumed. I recommend checking your codebase for any instances of 0.0.0.0 and replacing them with 127.0.0.1.

  2. As per the Socket.IO documentation, the IO.listen method only requires a port number as its argument.

Link to the Documentation

const IO = require('socket.io')(server);
let client_io = IO.listen(CONST.control_port);

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