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websocket-driver implementation built over nio4r
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 Dependencies

Development

Runtime

>= 1.2.1, < 3.0
 Project Readme

NIO::WebSocket Build Status Dependency Status

Maintainability Test Coverage Gem Version

This gem ties websocket-driver, a transport agnostic WebSockets library, together with a nio4r driven socket implementation.

Installation

Add this line to your application's Gemfile:

gem 'nio4r-websocket'

And then execute:

bundle

Or install it yourself as:

gem install nio4r-websocket

Usage

YARD Documentation

The only usage patterns introduced by this module are in how to instantiate 'websocket-driver' objects. Please refer to their documentation at https://github.com/faye/websocket-driver-ruby#driver-api on how to use them.

Additionally, the WebSocket driver object will emit an :io_error event. In the case that the underlying IO object gets disconnected, or otherwise closed without completing the WebSocket::Driver#close mechanism, you will be notified via subscribing to :io_error like:

driver.on :io_error do
  # some cleanup logic
  # `driver.on :close` may or may not be called - likely not
end

Examples

require 'nio/websocket'

Client:

NIO::WebSocket.connect 'wss://example.com/' do |driver|
  driver.on :message do |event|
    puts event.data
  end
  ... other wireup code (refer to 'websocket-driver' documentation)
end

Server:

NIO::WebSocket.listen port:443, ssl_context: { key: openssl_pkey_rsa_obj, cert: x509_cert_obj } do |driver|
  driver.on :message do |event|
    puts event.data
  end
  ... other wireup code (refer to 'websocket-driver' documentation)
end

Note: The above server block (listen) is executed on a per-connection basis

Options

NIO::WebSocket.listen accepts port: and address: options. Port is required, but address is optional for if you care to bind to a specific IP address on your host.

Both listen and NIO::WebSocket.connect accept websocket_options: which is passed to the corresponding 'websocket-driver' calls. Additionally, ssl_context: is available if you care to enable and customize your SSL experience.

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/NexusSW/nio4r-websocket. Ensure that you sign off on all of your commits.

License

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