Ruby Socket.IO回调

Question

I'm using Ruby Socket.IO client simple and trying to replicate this JS code with Ruby with no luck. JS code is working as expected, however, Ruby version does not produce callback output 'Authentication successful' on 'auth' emit.

Although auth in Ruby is successful, since I can emit other private methods after auth. The only question is why callback doesn't work

JS

var ws = io('https://test.com')

ws.on('connect', function () {
    auth(ws, pubKey, secKey, function (err, auth) {
        if (err) return console.error('Error', err);
        if (auth.success)
            console.log('Authentication successful');
        else
            console.log('Authentication failed');
    });
});

function auth(ws, pubKey, secKey, cb) {
    var data = { apiKey: pubKey, cmd: 'getAuthInfo', nonce: Date.now() };
    var sig = crypto.sign(data, secKey);
    ws.emit('auth', data, sig, cb);
}

Ruby

require 'socket.io-client-simple'
require 'date'

ws = SocketIO::Client::Simple.connect 'https://test.com'

socket.on :connect do
   auth(ws, pubKey, secKey, method(:auth_callback))
end

def auth(ws, pubKey, secKey, cb)
   data = { apiKey: pubKey, cmd: 'getAuthInfo', nonce: DateTime.now }
   sig = Crypto.sign(data, secKey)
   ws.emit :auth, [data.to_json, sig, cb]
end

def auth_callback(err, auth)
   if auth.success
      puts 'Authentication successful'
   end
end

Answer 1

auth_callback doesn't get called because you don't call it anywhere!

You pass the method method(:auth_callback) as a parameter called cb to auth method, but you don't do anything with cb .

cb is a Method , so you can use call on it.

There's not enough data to test your code, so here's a basic example :

cb=3.method(:+)
cb.call(2)
#=> 5

err is neither defined nor used, so you could remove it from def auth_callback(err, auth) .