Need to build a web app system like a demo

I need to build a new system such as a demo system that integrates an api to get results automatically 1. Can share built-in API to other system 2. Decentralize 3 positions admin + agent + user 3. The system includes website + application demo : https://lottery.gpiops.com/Login?vendor=VN88&lang=vi-vn&game=sode&mode=Try