The problem DeCrypt solves

This web app allows real-time and live cryptocurrency tracking in INR.
The user can select his or her coins of interest and keep track of them without having to search in a stack of coins every time.

Challenges I ran into

Initially, we as a team wanted to have an API that would fetch the price of all the coins in real-time but making API requests every micro second wouldn't be feasible, that's when we got to know the concept of web streaming via web sockets. So we opened up a socket connection and started streaming the prices of the crypto currencies until the connection is closed by the user.