A pluggable, configurable rate limiting middleware for Rails APIs with Redis backend, Slack alerts, and endpoint exclusions.

Add this line to your application's Gemfile:

gem 'rails_api_guard'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install rails_api_guard

rails generate rails_api_guard:install

Add this to application.rb if not used generator

config.middleware.use RailsApiGuard::Middleware::RateLimiter

Edit config/initializers/rails_api_guard.rb to set request limits, expiry time, Slack alerts, and excluded endpoint patterns.

RailsApiGuard can optionally send Slack alerts whenever a request exceeds the defined rate limit threshold.

To enable Slack alerts, set your Slack webhook URL in the initializer:

# config/initializers/rails_api_guard.rb
RailsApiGuard.configure do |config|
  config.slack_webhook_url = ENV["SLACK_WEBHOOK_URL"]
end

## Contributing
Contribution directions are yet to add.

## License
The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).