PaxfulEngine

A mountable Rails engine that saves completed trades from paxful marketplace and lets you do anything with it.

Add this line to your application's Gemfile:

gem 'paxful_engine-rails'

And then execute:

$ bundle
$ rails paxful_engine:install:migrations
$ rails db:migrate

Or install it yourself as:

$ gem install paxful_engine-rails

Create an initializer in your Rails application:

# config/initializers/paxful_engine-rails.rb

PaxfulEngine.configure do |c|
  c.paxful_key = "your paxful key"
  c.paxful_secret = "your paxful secret"
  c.on_sync_callback = "SyncCallback"
  c.on_failure_callback = "FailureCallback"
end

An object that responds to call that gets executed after a trade is (re)processed. It accepts a Trade as its only argument.

# example
class SyncCallback

  def self.call(trade)
    # do anything you want with this record
  end

end

An object that responds to call that gets executed when a trade cannot be created.

It accepts two arguments:

• exception
• payload

# example
class FailureCallback

  def self.call(e, payload)
    # log somewhere...
  end

end

Add this to your scheduler somewhere:

# sidekiq_cron.yml
refresh_paxful_order_book:
  cron: "*/2 * * * * Asia/Singapore" # runs every 2 minutes
  class: "PaxfulEngine::SyncOrderBookJob"

From the host app:

• Check list of trades at /paxful_engine/trades.
• Details per trade at /paxful_engine/trades/:id.

$ rails db:create db:migrate db:test:prepare

If you need to re-record cassettes, cp .env{,.local} and edit the values.

$ bundle exec rspec spec

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