Railway IPC

Installation

Add this line to your Gemfile:

gem 'railway-ipc'

And then execute:

$ bundle

Usage

• Configure the RailwayIpc logger in an initializer:

# config/initializers/railway_ipc.rb

RailwayIpc.configure(STDOUT, Logger::INFO, MyFormatter)

• Load the rake tasks in your Rakefile

# Rakefile
require "railway_ipc"

• Create RabbitMQ connection credentials for Railway and set the environment variable:

RAILWAY_RABBITMQ_CONNECTION_URL=amqp://<railway_user>:<railway_password>@localhost:5672

• Load table migrations and migrate by executing:

bundle exec rake railway_ipc:generate:migrations
bundle exec rake db:migrate

Publish/Consume

Define your consumer, handler and publisher. See the docs here to learn more.

Then, run your consumers

bundle exec rake railway_ipc:consumers:start CONSUMERS=YourConsumer,YourOtherConsumer

You may also configure your consumers more granularly using:

./config/sneaker_worker_groups.yml

HighPriority:
    classes: YourConsumer,YourOtherConsumer
    workers: 5
LowPriority:
    classes: YourThirdConsumer
    workers: 1

bundle exec rake railway_ipc:consumers:spawn

By default, spawn will map to ./config/sneaker_worker_groups.yml but you can override it by using WORKER_GROUP_CONFIG.

See the Sneaker Documentation for more information.

Request/Response

Define your server, client and responder. Docs coming soon.

Then, run your servers:

bundle exec rake railway_ipc:servers:start SERVERS=YourConsumer,YourOtherConsumer

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/sophiedebenedetto/ipc. 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 RailwayIpc project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.