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gera's Introduction

Gera

Build Status

Multiple rates generator for crypto changers and markets.

Осуществляет

  • Регулярный (ежесекундный) сбор и хранение курсов (ExternalRate) из внешних источников (RateSource)
  • Построение и хранение матрицы базовых курсов (CurrencyRate) для поддерживаемых валют из курсов внешних истичников (ExternalRate) на основе установленного метода расчета (CurrencyRateMode) автоматически или через кросс-курсы.
  • Построение и хранение матрицы конечных курсов (DirectionRate) для поддерживаемых платежных сервисов (PaymentSystem) с установленной комиссией (ExchangeRate)
  • Регулярная группировка базовых и конечных курсов в N-минутные отрезки со свечками для истории (CurrencyRateHistoryInterval и DirectionRateHistoryInterval)
  • Регулярная очистка матриц ежесекундных курсов (за сутки накапливается несколько гигабайт)

Installation

Add this line to your application's Gemfile:

gem 'gera'

And then execute:

$ bundle

Or install it yourself as:

$ gem install gera
rake gera:install:migrations

Configuration

Add ./config/initializers/gera.rb with this content:

Gera.configure do |config|
  config.cross_pairs = { kzt: :rub, eur: :rub }
end

Supported external sources of basic rates

  • EXMO, Russian Central Bank, Bitfinex, Manual

Supported currencies

  • RUB, USD, BTC, LTC, ETH, DSH, KZT, XRP, ETC, XMR, BCH, EUR, NEO, ZEC

Database

SQL tables diagram - https://github.com/finfex/gera/blob/master/doc/erd.pdf

TODO

  • move Authority to application level
  • Remove STI from RateSource

Contributing

  • Fork
  • Create Pull Request

License

The gem is available as open source under the terms of the GPLv3.

gera's People

Contributors

dapi avatar anaumov avatar dependabot[bot] avatar

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