https://github.com/launchdarkly/ruby-eventsource

Server-Sent Events client for Ruby
https://github.com/launchdarkly/ruby-eventsource

eventsource feature-flags feature-toggles launchdarkly launchdarkly-sdk launchdarkly-sdk-component managed-by-terraform ruby server-sent-events

Last synced: 3 months ago
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Server-Sent Events client for Ruby

• Host: GitHub
• URL: https://github.com/launchdarkly/ruby-eventsource
• Owner: launchdarkly
• License: other
• Created: 2019-01-03T02:56:56.000Z (over 7 years ago)
• Default Branch: main
• Last Pushed: 2026-01-16T15:01:40.000Z (3 months ago)
• Last Synced: 2026-01-17T05:09:52.579Z (3 months ago)
• Topics: eventsource, feature-flags, feature-toggles, launchdarkly, launchdarkly-sdk, launchdarkly-sdk-component, managed-by-terraform, ruby, server-sent-events
• Language: Ruby
• Homepage:
• Size: 130 KB
• Stars: 46
• Watchers: 41
• Forks: 20
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Codeowners: CODEOWNERS

Awesome Lists containing this project

README

          
LaunchDarkly SSE Client for Ruby

================================

[![Gem Version](https://badge.fury.io/rb/ld-eventsource.svg)](http://badge.fury.io/rb/ld-eventsource) 

[![Run CI](https://github.com/launchdarkly/ruby-eventsource/actions/workflows/ci.yml/badge.svg)](https://github.com/launchdarkly/ruby-eventsource/actions/workflows/ci.yml)

A client for the [Server-Sent Events](https://www.w3.org/TR/eventsource/) protocol. This implementation runs on a worker thread, and uses the [`http`](https://rubygems.org/gems/http) gem to manage a persistent connection. Its primary purpose is to support the [LaunchDarkly SDK for Ruby](https://github.com/launchdarkly/ruby-client), but it can be used independently.

Parts of this code are based on https://github.com/Tonkpils/celluloid-eventsource, but it does not use Celluloid.

Supported Ruby versions

-----------------------

This gem has a minimum Ruby version of 3.1.

Quick setup

-----------

1. Install the Ruby SDK with `gem`:

```shell

gem install ld-eventsource

```

2. Import the code:

```ruby

require 'ld-eventsource'

```

3. Create a new SSE client instance and register your event handler:

```ruby

sse_client = SSE::Client.new("http://hostname/resource/path") do |client|

  client.on_event do |event|

    puts "I received an event: #{event.type}, #{event.data}"

  end

end

```

For other options available with the `Client` constructor, see the [API documentation](https://www.rubydoc.info/gems/ld-eventsource).

Contributing

------------

We welcome questions, suggestions, and pull requests at our [Github repository](https://github.com/launchdarkly/ruby-eventsource). Pull requests should be done from a fork.