Created
May 30, 2018 09:23
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| const CoinMarketCapModel = require('../models/coin_market_cap'); | |
| const rp = require('request-promise'); | |
| const Promise = require('bluebird'); | |
| class CoinMarketCap { | |
| constructor(db) { | |
| this.coin_market_cap_model = CoinMarketCapModel(db); | |
| } | |
| setTicker(ticker) { | |
| this.ticker = ticker; | |
| } | |
| beginImport() { | |
| return this.coin_market_cap_model.sync().then(() => { return this._importData(); }); | |
| } | |
| _importData() { | |
| let options = { | |
| uri: 'https://api.coinmarketcap.com/v2/ticker/' + this.ticker, | |
| json: true | |
| }; | |
| return rp(options).then((data) => { return this._storeData.bind(this)(data); }) | |
| .catch((err) => { | |
| console.error(err); | |
| }) | |
| } | |
| _storeData(data) { | |
| let item = data.data; | |
| let quotes = item.quotes.USD; | |
| let timestamp = data.metadata.timestamp; | |
| return this.coin_market_cap_model.upsert({ | |
| coin_id: item.id, | |
| name: item.name, | |
| symbol: item.symbol, | |
| website_slug: item.website_slug, | |
| rank: item.rank, | |
| circulating_supply: item.circulating_supply, | |
| total_supply: item.total_supply, | |
| max_supply: item.max_supply, | |
| quote_usd_price: quotes.price, | |
| quote_usd_volume_24h: quotes.volume_24h, | |
| quote_usd_market_cap: quotes.market_cap, | |
| quote_usd_percent_change_1h: quotes.percent_change_1h, | |
| quote_usd_percent_change_24h: quotes.percent_change_24h, | |
| quote_usd_percent_change_7d: quotes.percent_change_7d, | |
| last_updated: item.last_updated, | |
| timestamp: timestamp | |
| }); | |
| } | |
| } | |
| module.exports = CoinMarketCap; |
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