live-order-board-crypto-inc

Live order board

Live order board is Javascript/ typescript utility library that provides helper functions to place, cancel crypto orders. Also, you can get your all orders summary.

Live order board example.

Install

npm i live-order-board-crypto-inc

Place order

You can send order request to BUY or SELL crypto. E.g.

{
    userId: 'user 1',
    coinType: 'Bitcoin',
    orderQuantity: 100,
    pricePerCoin: '£40',
    orderType: 'Buy',
}

Orders summary

You can view top 10 orders in summary. Orders summary is organised using following assumptions:

1. Buy orders are organised in DESC order of pricePerCoin.
2. Sell orders are organised in ASC order of pricePerCoin.
3. Orders of same pricePerCoin and coinType are merged using orderQuantity for both buy & sell orders.

**NOTE: In requirement document it has been mentioned to merge orders using pricePerCoin. But, I've considered merging them using both pricePerCoin & coinType. This can be change by making simple change in createOrdersSummary function.

Usage

Place Order

import { placeOrder } from 'live-order-board-crypto-inc';

const orderId = placeOrder({
  userId: 'user 1',
  coinType: 'Bitcoin',
  orderQuantity: 100,
  pricePerCoin: '£40',
  orderType: 'Buy',
});

Cancel Order

import { cancelOrder } from 'live-order-board-crypto-inc';

cancelOrder('orderId');

Orders Summary

import { getOrdersSummary } from 'live-order-board-crypto-inc';

getOrdersSummary(count);

"count" is optional. Default order summary count is 10.