176 lines
4.4 KiB
TypeScript
176 lines
4.4 KiB
TypeScript
import { checkHttpStatus, parseJSON } from 'api/utils';
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const SHAPESHIFT_BASE_URL = 'https://shapeshift.io';
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export const SHAPESHIFT_TOKEN_WHITELIST = [
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'OMG',
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'REP',
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'SNT',
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'SNGLS',
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'ZRX',
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'SWT',
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'ANT',
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'BAT',
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'BNT',
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'CVC',
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'DNT',
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'1ST',
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'GNO',
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'GNT',
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'EDG',
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'FUN',
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'RLC',
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'TRST',
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'GUP',
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'ETH'
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];
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export const SHAPESHIFT_WHITELIST = [...SHAPESHIFT_TOKEN_WHITELIST, 'ETC', 'BTC'];
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class ShapeshiftService {
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public whitelist = SHAPESHIFT_WHITELIST;
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private url = SHAPESHIFT_BASE_URL;
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private apiKey = '0ca1ccd50b708a3f8c02327f0caeeece06d3ddc1b0ac749a987b453ee0f4a29bdb5da2e53bc35e57fb4bb7ae1f43c93bb098c3c4716375fc1001c55d8c94c160';
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private postHeaders = {
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'Content-Type': 'application/json'
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};
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public checkStatus(address) {
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return fetch(`${this.url}/txStat/${address}`)
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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public sendAmount(withdrawal, originKind, destinationKind, destinationAmount) {
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const pair = `${originKind.toLowerCase()}_${destinationKind.toLowerCase()}`;
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return fetch(`${this.url}/sendamount`, {
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method: 'POST',
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body: JSON.stringify({
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amount: destinationAmount,
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pair,
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apiKey: this.apiKey,
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withdrawal
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}),
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headers: new Headers(this.postHeaders)
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})
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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public getCoins() {
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return fetch(`${this.url}/getcoins`)
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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public getAllRates = async () => {
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const marketInfo = await this.getMarketInfo();
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const pairRates = await this.getPairRates(marketInfo);
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const checkAvl = await this.checkAvl(pairRates);
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const mappedRates = this.mapMarketInfo(checkAvl);
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return mappedRates;
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};
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private getPairRates(marketInfo) {
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const filteredMarketInfo = marketInfo.filter(obj => {
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const { pair } = obj;
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const pairArr = pair.split('_');
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return this.whitelist.includes(pairArr[0]) && this.whitelist.includes(pairArr[1])
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? true
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: false;
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});
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const pairRates = filteredMarketInfo.map(p => {
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const { pair } = p;
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const singlePair = Promise.resolve(this.getSinglePairRate(pair));
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return { ...p, ...singlePair };
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});
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return pairRates;
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}
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private async checkAvl(pairRates) {
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const avlCoins = await this.getAvlCoins();
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const mapAvl = pairRates.map(p => {
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const { pair } = p;
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const pairArr = pair.split('_');
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if (pairArr[0] in avlCoins && pairArr[1] in avlCoins) {
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return {
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...p,
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...{
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[pairArr[0]]: {
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name: avlCoins[pairArr[0]].name,
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status: avlCoins[pairArr[0]].status,
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image: avlCoins[pairArr[0]].image
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},
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[pairArr[1]]: {
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name: avlCoins[pairArr[1]].name,
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status: avlCoins[pairArr[1]].status,
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image: avlCoins[pairArr[1]].image
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}
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}
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};
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}
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});
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return mapAvl;
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}
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private getAvlCoins() {
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return fetch(`${this.url}/getcoins`)
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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private getSinglePairRate(pair) {
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return fetch(`${this.url}/rate/${pair}`)
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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private getMarketInfo() {
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return fetch(`${this.url}/marketinfo`)
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.then(checkHttpStatus)
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.then(parseJSON);
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}
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private isWhitelisted(coin) {
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return this.whitelist.includes(coin);
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}
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private mapMarketInfo(marketInfo) {
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const tokenMap = {};
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marketInfo.forEach(m => {
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const originKind = m.pair.substring(0, 3);
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const destinationKind = m.pair.substring(4, 7);
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if (this.isWhitelisted(originKind) && this.isWhitelisted(destinationKind)) {
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const pairName = originKind + destinationKind;
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const { rate, limit, min } = m;
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tokenMap[pairName] = {
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id: pairName,
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options: [
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{
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id: originKind,
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status: m[originKind].status,
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image: m[originKind].image,
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name: m[originKind].name
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},
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{
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id: destinationKind,
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status: m[destinationKind].status,
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image: m[destinationKind].image,
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name: m[destinationKind].name
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}
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],
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rate,
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limit,
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min
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};
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}
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});
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return tokenMap;
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}
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}
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const shapeshift = new ShapeshiftService();
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export default shapeshift;
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