Collaborative-Online-Judge-System
• Implemented a web-based collaborative code editor which supports multiple user editing simultaneously (ACE, Socket.io, Redis);
• Designed and developed a single-page web application for coding problems (Angular2, Auth0, Node.js, MongoDB);
• Built a user-code executor service which can build and execute user’s code (Docker, Flask);
• Refactored and Improved system throughput by decoupling services using RESTful API and loading balancing by Nginx (REST API, Nginx).
How a request was sent from frontend to backend and back to browser
- DataService(FrontEnd) call a http Request
- for example getProblems()
- api Request send to server.js
- Server.js send request to RestRouter to find a right ProblemService
- Problem help to get data from ProblemSchema
- ProblemModel search the data from Database and send back to RestRouter
- RestRouter get the problems data and chagne it to a JSON file
- Send it back to DataService
- Since problem-list have subscripted, the chagne will call to frontend angular cli
- By data binding with html, frontend contents change
