price-server

price-server

This component is reponsible for computing the exchange rate of LUNA to submit and makes it available through an HTTP endpoints.

Instructions

1. Install dependencies

npm install

2. Configure settings (see below)

# Copy sample config file
cp ./config/default-sample.js ./config/default.js
# make edits
vim ./config/default.js

3. Run server

# Price is available at `tcp://127.0.0.1:8532/latest`
npm run start

Configuration

You can find the sample configuration at: config/default.sample.js. Oracle Price Server expects your configuration file at config/default.js.

const fiatSymbols = [
  'USD/SDR',
  'USD/KRW',
  'USD/MNT',
  'USD/EUR',
  'USD/CNY',
  'USD/JPY',
  'USD/GBP',
  'USD/INR',
  'USD/CAD',
  'USD/CHF',
  'USD/HKD',
  'USD/AUD',
  'USD/SGD',
  'USD/THB',
  'USD/SEK',
  'USD/NOK',
  'USD/DKK',
]

module.exports = {
  port: 8532,
  sentry: '', // sentry dsn (https://sentry.io/ - error reporting service)
  slack: {
    // for incident alarm (e.g. exchange shutdown)
    channel: '#bot-test',
    url: '',
  },
  lunaProvider: {
    adjustTvwapSymbols: ['LUNA/USDT'],
    huobi: { symbols: ['LUNA/USDT'] },
    binance: { symbols: ['LUNA/USDT'] },
    kucoin: { symbols: ['LUNA/USDT'] },
  },
  cryptoProvider: {
    adjustTvwapSymbols: ['USDT/USD'],
    bitfinex: { symbols: ['USDT/USD'] },
    kraken: { symbols: ['USDT/USD'] },
  },
  fiatProvider: { // at least one fiatprovider should be set
    fallbackPriority: ['currencylayer', 'exchangerate', 'bandprotocol'],
    currencylayer: {
      symbols: fiatSymbols,
      interval: 60 * 1000,
      timeout: 5000,
      // https://currencylayer.com/product
      // recommend: business subscription(60second Updates): $79.99/month
      apiKey: '', // necessary
    },
    bandprotocol: {
      symbols: fiatSymbols.filter(v => !v.includes('DKK')),
      interval: 60 * 1000,
      timeout: 5000,
      // https://data.bandprotocol.com/
    },
    exchangerate: {
      symbols: fiatSymbols,
      interval: 60 * 1000,
      timeout: 5000,
      // https://exchangerate.host/
    },
    // fixer: {
    //   symbols: fiatSymbols,
    //   interval: 60 * 1000,
    //   timeout: 5000,
    //   // https://fixer.io/product
    //   // recommend: professional plus(60second Updates): $80/month
    //   apiKey: '', // necessary
    // },
    // alphavantage: {
    //   symbols: fiatSymbols,
    //   interval: 60 * 1000,
    //   timeout: 5000,
    //   // https://www.alphavantage.co/premium/
    //   // recommend: 120 API request per minute: $49.99/month
    //   apiKey: '', // necessary
    // },
  },
}

Key	Type	Description
port	number	Port number to expose the price server.
sentry	string	URL for sentry.io error reporting
slack	object	Slack webhook notification configuration
lunaProvider	object	Configuration for LUNA data provider. Current supported providers are bithumb, coinone, huobi, and binance.
cryptoProvider	object	Configuration for cryptocurrency data provider. Current supported providers are upbit, bithumb, binance, huobi, bitfinex, and kraken.
fiatProvider	object	Configuration for fiat currency data providers. Current supported providers are currencylayer, fixer, and alphavantage.