nijuyr / bfx-challenge

bfx-challenge

Distributed Exchange

This is a simplified distributed exchange that uses a distributed hash table (DHT) to enable communication between nodes.

Features

• Each client has its own instance of the orderbook.
• Clients submit orders to their own instance of the orderbook, which is then distributed to other instances.
• If a client's order matches with another order, the remainder is added to the orderbook as well. Requirements
• Code written in Javascript
• Uses Grenache for communication between nodes
• Simple order matching engine
• Does not include a UI or HTTP API

Usage

Install the necessary libraries by running npm install --save grenache-nodejs-http grenache-nodejs-link Start the DHT by running grape --dp 20001 --aph 30001 --bn '127.0.0.1:20002' and grape --dp 20002 --aph 40001 --bn '127.0.0.1:20001' Start the server and client using the provided index.js file as an example

node src/server/index.js
node src/client/index.js

Limitations

• The implementation is time critical and uses FIFO transaction.

Testing

Run npm test to run the test cases that ensure the implemented functions are working correctly.

Additional Changes

• You can add additional validation and error handling.
• Add more advanced order matching algorithms.