Servent

Ruby Server-Sent Events client. A EventSource Ruby implementation based on the W3C specification.

Early Development [15/11/2017]

This is just a first public draft, a bunch of changes and lack of documentation is to be expected.

Installation

Add this line to your application's Gemfile:

gem 'servent'

Usage

# given that the http://example.org/event-source
# generates an event like the one below:
#
#   event: hello_world
#   id: 42
#   data: Omg! Hello World.

events = Queue.new

event_source = Servent::EventSource.new("http://example.org/event-source")
event_source.on_message do |message|
  events.push message
end
event_source.start

while (event = events.pop)
  puts "Event type: #{event.type}"
  puts "Event body: #{event.body}"

  # Will print:
  #
  #   ```
  #     Event type: hello_world
  #     Event body: Omg! Hello World.
  #   ```
  # And wait for the next event to arrive.
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto 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 tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/ricardovaleriano/servent. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

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

Code of Conduct

Everyone interacting in the Servent project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.