One page application using node v12.x currently showing percentage of raised hands. Also using session id to keep track of active users. application is linked to redis v3.2 database
packages used with their versions
"body-parser": "^1.19.0",
"cookie-parser": "^1.4.5",
"ejs": "^3.1.3",
"express": "^4.17.1",
"express-session": "^1.17.1",
"npm": "^6.14.5",
"redis": "^3.0.2",
"socket.io": "^2.3.0",
"update": "^0.7.4"