Crypto Ticker

Overview

a TUI (Terminal User Interface) that displays 24 hour crypto tickers. Simply type a crypto symbol pair you are interest in and press either F2 to add, or F3 to remove its ticker from the table.

Ticker data is streamed via the Binance socket streams endpoint. Thus, supported symbol pairs directly correspond to the Binance WSS service. Please note that it may take several seconds for the stream to be added to the ticker table after pressing the F2 button.

Press F4 and F5 to scroll the ticker table when you have added more rows than your terminal window can render.

Application Details

This application is written in Haskell and makes use of the following concepts and libraries:

• Clock: For dealing with temporary data via the clock package.
• Concurrency: Multiple threads utilizing TChan and BChan primitives.
• JSON: Encoding and decoding JSON using the aeson package.
• Lenses: For accessing data in nested data structures.
• TUI: The terminal user interface is drawn with the brick library.
• Web sockets: Usage of the Wuss and Network.WebSockets modules.