Artsy::EventPublisher

Lightweight helper for publishing events to rabbitmq in a pattern consistent with Artsy's ecosystem.

Installation

Add following line to your Gemfile

gem "artsy-event_publisher"

Usage

Example initialization:

# config/initializers/artsy-event_publisher.rb
Artsy::EventPublisher.configure do |config|
  config.app_id = "my-app" # identifies RabbitMQ connection
  config.enabled = true # enable/disable publishing events
  config.rabbitmq_url = "amqp(s)://<user>:<pass>@<host>:<port>/<vhost>" # required
  config.logger = Rails.logger
end

Publishing a sample event:

Artsy::EventPublisher.publish(
  "auctions", # topic
  "bidder.pending_approval", # routing key
  verb: "pending_approval", # action occurring
  subject: {id: bidder.id.to_s, root_type: "Bidder", display: bidder.name}, # id and properties of the actor responsible for this event
  object: {id: sale.id.to_s, root_type: "Sale", display: sale.name}, # id and properties of the object being acted on (created, updated, etc.)
  properties: {url: "..."} # optional additional properties about this event or helpful for handling it
)

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests.

To install this gem on your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/artsy/artsy-event_publisher.

License

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