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Market Maker

Automatically make a market between XRP and any single issued currency.

ALPHA SOFTWARE

Thousands of developers and institutions need a simple and effective mechanism to make a market from their currency to XRP. Market Maker is a humble attempt at an elegant and reliable solution they crave.

Dependencies

  • Node.js

Installation

npm install -g market-maker

Configuration

All config settings are set via environment variables.

The following environment variables must be set, which provide the ripple secret key for the trading account, and setup the market parameters:

  • RIPPLE_MARKET_MAKER_KEY
  • RIPPLE_MARKET_CURRENCY
  • RIPPLE_MARKET_ISSUER
  • RIPPLE_MARKET_XRP_DEPTH
  • RIPPLE_MARKET_XRP_PRICE
  • RIPPLE_REST_URL

Processes

Market Maker is composed of two concurrent processes. The first watches the ripple ledger for trades on the market currency, and notes which adjustments must be made to reconstruct the desired market. The second actually performs updates to the ripple market ledger by placing new orders.

  • Monitoring the market order book
  • Modifying the market order book

Contributing

Architecure shall follow closely the Twelve-Factor App design principles.

To contribute a feature fork the project and add your feature under a feature flag in a feature branch. Feature flags can be enabled individually like so:

market-maker start --feature multi-market

Make a pull request from your fork's feature branch into the origin master branch with the feature disabled by default.

Pull requests must not be accepted without test coverage, and automated test builds must pass before merging any pull requests.

Build From Source

First install git and node.js, then run the build tasks:

git clone https://github.com/ripple/market-maker.git
cd market-maker
npm install
npm run build
npm run link

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Automatically provide liquidity between XRP and any single issued currency.

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