In my node.js / Express.js app, I need to pass parameters with the socket.io connection (saw that in another post).

On client side, I have something like :

edit

var socket = io.connect('/image/change', {query:name=my_img_name});

var siofu = new SocketIOFileUpload(socket);



siofu.listenOnInput(document.getElementById(change_image_inpt));

On server side :

edit

io.of('/image/change')

  .on('connection', function (socket) {

  console.log('log input param : ' + socket.handshake.query.name);

});

But nothing in the console.

Is there another way to achieve that ?

edit2

This is the full code for client :

$(document).ready(function() {



// icon_action_modal

$('.icon_actions').on('click', function() {

    // set icon preview

    $('#icon_action_modal_icon_preview').html('<img src=/upload/icon/' + $(this).data('icon') + '.png />');



    // set icon to delete

    $('#icon_name').val($(this).data('icon'));



    // set Change icon socket

    var socket = io.connect('/icon_sets/change', {query:name=my_img_name});

    var siofu = new SocketIOFileUpload(socket);



    siofu.listenOnInput(document.getElementById(change_icon));



    // Do something when a file is uploaded

    siofu.addEventListener(complete, function () {

        $('.overlay').hide();

    });



    // display loader window

    socket.on('displayOverlay', displayOverlay);



    // display

    socket.on('displayIconImage', function (data) {

        $('#iconset_render').append('<div class=icon><img src=' + data.path + ' /></div>');

    });



    socket.on('setIconsetArray', function (data) {

        var iconset = ($('#iconset_array').val()) ? JSON.parse($('#iconset_array').val()) : [];



        iconset.push(data.iconName);



        $('#iconset_array').val(JSON.stringify(iconset));



        deleteIcon($('#icon_name').val());



        // close modal

        $('#icon_action_modal').modal('hide');

    });



});



$('#icon_action_modal_delete_icon').on('click', function() {

    deleteIcon($('#icon_name').val());



    // close modal

    $('#icon_action_modal').modal('hide');

});



}); // end document.ready

And the full code for server side :

io.of('/icon_sets/change')

  .on('connection', function (socket) {

    console.log('log input param : ' + socket.handshake.query.name);

    functions.socketImageTransfer(socket, 'icon', 65, 65);

});

With the socketImageTransfer function :

module.exports.socketImageTransfer = function(socket, type, width, height, name) {



var socketioFileUploadServer    = require('socketio-file-upload');   // upload files by socket

var config                      = require(__dirname + '/config/config.json');

var easyimg                     = require('easyimage');                 // crop - resize image

var fs                          = require('fs');                        // file system access



// Make an instance of socketioFileUploadServer and listen on this socket:

var uploader = new socketioFileUploadServer();

uploader.dir = config.tmpDir;

uploader.listen(socket);



// Do something when a file is saved:

uploader.on('saved', function (event) {



    console.log('Original ' + type + ' saved');



    // resize and rename image with a unique id

    var newName;



    if (!name) {

        newName = Math.random().toString(36).substr(2, 9) + '_' + type + '.png';

    } else {

        newName = name;

    }



    var fileName = event.file.name.replace(/ /g, '_');



    easyimg.rescrop({src: config.tmpDir + fileName, dst: config.uploadDir + type + '/' + newName, width: width, height: height}, function (err, image) {



        if (err) return console.log(err);



        console.log(type + ' resized and cropped: ' + image.width + ' x ' + image.height);



        // image is uploaded - resized - croped, now display it

        socket.emit('display' + ucfirst(type) + 'Image', {path: '/upload/'+ type + '/' + newName});



        // remove original from file system

        fs.unlink(config.tmpDir + fileName, function () {

            if (err) throw err;

            console.log('Original ' + type + ' removed');

        });



        // additionnal action

        switch(type) {

            case 'icon':

                // send path to generate iconset_json

                socket.emit('setIconsetArray', {iconName: newName});

                break;

        }



    });



});



uploader.on('start', function (event) {

    console.log('Client start upload');

    socket.emit('displayOverlay');

});



// Error handler:

uploader.on('error', function (event) {

    console.log(Error from uploader, event);

});



};

Appreciate your help