Market Maker

Daemon to automatically make a market between your currency and XRP

Installation

npm install -g market-maker

Build from Source

npm run build

Run the Tests

npm test

USAGE

Configure the currencies you would like to support, the size of the market you would like to make, and a function to determine the market price.

/currencies/ btc.js ltc.js xag.js xau.js sgz.js

Each currency module should export a function that determines the rate, as well as a function that determines the price, and properties that determine the currency and wallet to use

Example:

//btc.js

exports.rate = function(resolve, reject) {
  // returns a Promise<Decimal>
}

exports.total = function(resolve, reject) {
  // total XRP you would like to sell at the rate
  // returns a Promise<Decimal>
}

exports.address = process.env.RIPPLE_ADDRESS;

exports.secret = process.env.RIPPLE_SECRET;

exports.currency = 'BTC';

exports.issuer = process.env.RIPPLE_ADDRESS;

Then run the market-maker start command specifying the currency to begin making a market

market-maker start currencies/btc

Which will spawn a new system process that monitors the ripple network for trades and automatically balances the order book for the specified currency.

Proposed Interface

Submitting an Offer

var offer = new Offer({
  account: 'r4fvGghXiSSEQxhfaY7kmqzxHvSoF8sUhy',
  buy: {
    amount  : 10,
    currency: 'XAG',
    issuer  : 'rP6AY2Azjy8oDQm5YEBKSDoEjC26nDbCXV'
  },
  sell: {
    amount  : 1000,
    currency: 'XRP'
  }
}) 

offer.submit({ secret: 'shHgHo7RdfggErwkAqFhDtScMKcHx' })
  .then(function(response) {
    console.log('SUCCESS', response)
  })
  .error(function(error) {
    console.log('ERROR', error)
  });