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import * as crypto from 'crypto';
import CryptoCoin from '../util/CrytoCoin';
import Order from '../util/Order';
import { OrderTypeEnum } from '../enums';
import Account from '../util/Account';
import { Currency } from '../enums/index';
import ExchangeInterface from '../Interfaces/ExchangeInterface';
import Ticker from '../util/Ticker';
const BASE_URL = 'https://bitssa.com/api/v2'
export default class Bitsaa implements ExchangeInterface {
privateApi: AxiosInstance
publicApi: AxiosInstance
baseUrl: string
apiKey: string
secretKey: string
constructor(obj?: Object) {
if (obj) {
const objKeys = Object.keys(obj)
for (const key of objKeys) {
this[key] = obj[key]
}
}
this.baseUrl = BASE_URL
this.privateApi = axios.create({
baseURL: this.baseUrl
})
this.publicApi = axios.create({
baseURL: this.baseUrl
})
this.privateApi.interceptors.request.use(
config => this.axiosInterceptor(config),
error => Promise.reject(error)
);
}
static getExtraParams(url: string):object {
const index = url.indexOf('?')
const result = { url }
if (index !== -1) {
const newUrl = url.substr(index + 1)
result.url = result.url.substr(0, index)
const params = newUrl.split('&')
}
return result
}
axiosInterceptor(config: any) {
const nounce = new Date().getTime()
let params = ''
let queryParamsList = [`access_key=${this.apiKey}`, `tonce=${nounce}`]
let { url } = config
const index = url.indexOf('?')
// Get query parameters from url and add it into array
if (index !== -1) {
params = url.substr(index + 1)
url = url.substr(0, index)
queryParamsList = queryParamsList.concat(params.split('&'))
}
// sorting all query params in alphabateical order
// since bitsaa require params in alphabatical order
queryParamsList.sort((a, b) => a.charCodeAt(0) - b.charCodeAt(0))
const queryParams = queryParamsList.join('&')
const text = `${config.method.toUpperCase()}|/api/v2${url}|${queryParams}`
const hash = crypto.createHmac('sha256', this.secretKey).update(text).digest('hex');
const newConfig = config
newConfig.url = `${url}?${queryParams}&signature=${hash}`
// console.log(config);
// if(nounce !== 2) throw new Error("")
return newConfig
}
async getBalance(cryptocoin?:CryptoCoin): Promise<Account> {
const url = '/members/me.json'
const res = await this.privateApi.get(url)
const account = new Account({
exchangeName: this.getExchangeName()
})
for (const accObj of res.data.accounts) {
account.setBalance(accObj.currency, Number(accObj.balance))
}
return account
}
async getMyOrders(cryptocoin?: CryptoCoin): Promise<any> {
const url = '/orders.json?market=dkdbtc'
const res = await this.privateApi.get(url)
return res.data
}
async cancelMyAllOrders(cryptocoin?: CryptoCoin): Promise<any> {
if (!cryptocoin) {
const url = '/orders/clear.json'
const res = await this.privateApi.post(url)
return null;
}
const ordersList = await this.getMyOrders(cryptocoin)
return Promise.all(ordersList.map(order => this.cancelMyOrder(order.id, cryptocoin)))
}
async cancelMyOrder(id: any, cryptocoin: CryptoCoin): Promise<any> {
const url = `/order/delete.json?id=${id}`
const res = await this.privateApi.post(url)
return res.data
}
static getMarket(cryptocoin: CryptoCoin):string {
switch (cryptocoin.priCoin) {
case 'dkd':
return 'dkdbtc'
default:
}
throw new Error('invalid cryptocoin')
}
async putOrder(order: Order):Promise<Order> {
let url = '/orders.json?'
url += `market=${Bitsaa.getMarket(order.cryptocoin)}`
url += `&price=${order.price}`
url += `&side=${Bitsaa.getOrderType(order.type)}`
url += `&volume=${order.volume}`
try {
const res = await this.privateApi.post(url)
if (res.data) {
const newOrder = order
newOrder.id = res.data.id
return newOrder
}
throw new Error('unable to put order ')
} catch (error) {
throw new Error(error)
}
}
static getOrderType(type: OrderTypeEnum):string {
switch (type) {
case OrderTypeEnum.BUY: return 'buy'
case OrderTypeEnum.SELL: return 'sell'
default:
}
throw new Error('Invalid Type')
}
async getBuyOrders(cryptocoin: CryptoCoin): Promise<Order[]> {
const url = `order_book.json?market=${Bitsaa.getMarket(cryptocoin)}&asks_limit=1`
const ordersList: Order[] = []
const res = await this.publicApi.get(url)
for (const orderObj of res.data.bids) {
ordersList.push(new Order({
type : OrderTypeEnum.BUY,
volume: orderObj.volume,
price : orderObj.price,
cryptocoin
}))
}
return ordersList
}
async getSellOrders(cryptocoin: CryptoCoin): Promise<Order[]> {
const url = `order_book.json?market=${Bitsaa.getMarket(cryptocoin)}&bids_limit=1`
const ordersList: Order[] = []
const res = await this.publicApi.get(url)
for (const orderObj of res.data.asks) {
ordersList.push(new Order({
type : OrderTypeEnum.SELL,
volume: orderObj.volume,
price : orderObj.price,
cryptocoin
}))
}
return ordersList
}
async getOrders(cryptocoin: CryptoCoin, limit:number = 10):
Promise<{ buyOrderList: Order[], sellOrderList: Order[] }> {
const url = `order_book.json?market=${Bitsaa.getMarket(cryptocoin)}&asks_limit=${limit}&bids_limit=${limit}`
const res = await this.publicApi.get(url)
const buyOrderList: Order[] = []
const sellOrderList: Order[] = []
for (const orderObj of res.data.asks) {
sellOrderList.push(new Order({
type : OrderTypeEnum.SELL,
volume: Number(orderObj.volume),
price : Number(orderObj.price),
cryptocoin
}))
}
// console.log(JSON.stringify(sellOrderList));
for (const orderObj of res.data.bids) {
buyOrderList.push(new Order({
type : OrderTypeEnum.BUY,
volume: Number(orderObj.volume),
price : Number(orderObj.price),
cryptocoin
}))
}
return { buyOrderList, sellOrderList }
}
getTicker(cryptocoin?: CryptoCoin, withVolume: boolean = false): Promise<Ticker> {
if (!withVolume) {
return this.publicApi
.get(`/tickers/${Bitsaa.getMarket(cryptocoin)}.json`)
.then((response) => {
const result = response.data.ticker
const ticker = new Ticker({
ask: Number(result.sell),
bid: Number(result.buy),
cryptocoin
})
return ticker
}).catch((err) => {
console.log(err);
return new Ticker({})
})
}
return this.getOrders(cryptocoin, 1).then((data) => {
const { buyOrderList, sellOrderList } = data
const buyOrder = buyOrderList[0]
const sellOrder = sellOrderList[0]
const ticker = new Ticker({
ask : sellOrder.price,
bid : buyOrder.price,
askVolume: sellOrder.volume,
bidVolume: buyOrder.volume,
cryptocoin
})
return ticker
})
}
toString() {
return 'Exchange Name: Bitsaa'
}
getExchangeName(): string {
return 'bitsaa'
}
}
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