nobloxmmc.js/lib/group/joinGroup.js

A Node.js wrapper for ROBLOX. (original from sentanos)

// Includes
var generalRequest = require('../util/generalRequest.js').func

// Args
exports.required = ['group']
exports.optional = ['useCache', 'jar']

// Define
exports.func = function (args) {
  var events = {
    __EVENTTARGET: 'JoinGroupDiv',
    __EVENTARGUMENT: 'Click'
  }
  return generalRequest({ url: '//www.roblox.com/Groups/Group.aspx?gid=' + args.group, jar: args.jar, events: events, ignoreCache: !args.useCache })
    .then(function (result) {
      if (result.res.statusCode !== 200) {
        throw new Error('Failed to join group, verify that you have enough group space')
      }
    })
}