Collaborative Online Judge System

Source code Go to the application


Collaborative online judge system(COJ) is a web-based code editor which is designed to allow multiple users to work on a single problem by establising the communicaton between different sessions with The solution is executed by a code execution engine based on a docker. The frontend is based on Angular. The restful API is relied on Nodejs framework. The execution environment is based on docker container. The user system is using Auth0. It also has web components in the front end to add problems to passed to the restful API, in turn saves to database which based on a web based MongoDB mlab.


Collaborative coding between different sessions

Obserable search bar

Auth0 login system

Code Execution

MongoDB noSQL database