binance-api-client/src/models/websocket/depth/OrderBookUpdate.ts

A wrapper which can be used to interact with Binance's API. Entirely developed in TypeScript.

import { PlacedOrder } from "../../order/PlacedOrder";

/**
 * Represents a single order book update.
 */
export class OrderBookUpdate {
    private _timestamp: Date;
    private _symbol: string;
    private _id: number;
    private _asks: PlacedOrder[];
    private _bids: PlacedOrder[];

    constructor(json: any) {
        this._timestamp = new Date(json.E);
        this._symbol = json.s;
        this._id = json.u;

        this._asks = [];
        for (const askJson of json.a) {
            this._asks.push(new PlacedOrder(askJson));
        }

        this._bids = [];
        for (const bidJson of json.b) {
            this._bids.push(new PlacedOrder(bidJson));
        }
    }

    get timestamp(): Date {
        return this._timestamp;
    }

    set timestamp(value: Date) {
        this._timestamp = value;
    }

    get symbol(): string {
        return this._symbol;
    }

    set symbol(value: string) {
        this._symbol = value;
    }

    get id(): number {
        return this._id;
    }

    set id(value: number) {
        this._id = value;
    }

    get asks(): PlacedOrder[] {
        return this._asks;
    }

    set asks(value: PlacedOrder[]) {
        this._asks = value;
    }

    get bids(): PlacedOrder[] {
        return this._bids;
    }

    set bids(value: PlacedOrder[]) {
        this._bids = value;
    }
}