BottledServices

Ok, thats a drastic exaggeration, but now I have your attention lets get down to it.
bottled_services are here to make your life easier, its that simple. Using services keeps our code cleaner, DRYer, and reusable. With this gem creating and using services is now as easy and pain-free as can be thanks to the bottled_services generator and the BottledService Class from which all bottled services are children of, all you need to worry about is adding your business logic, let bottled_services handle the rest.

This Readme explains the use of BottledServices up to version 0.1.3, currently 1.0.0.alpha is the latest version and contains breaking changes, the Readme will be updated along with the release of 1.0.0

Add this line to your application's Gemfile:

gem 'bottled_services'

And then execute:

$ bundle

Or install it yourself as:

$ gem install bottled_services

Service Objects can be generated using the bottled_service generator:

$ rails g bottled_service ExampleService first_attribute:String second_attribute:Array

This will then create a service object that can accept two type-strict attributes, this service can then be called and executed by calling the class call method:

ExampleService.call(first_attribute: 'This is a string.', second_attribute: ['This', 'is', 'an', 'Array'])

or :

ExampleService.call(some_valid_params)

Bottled Services provide the ability to create strict-type attributes, however this is not a must, and in the case of wanting to use type agnostic attributes, just leave out the type from the command:

$ rails g bottled_service TypeAgnosticService first_attribute second_attribute

When using the generator with types, the attribute arguments will generate something like the following in your service object:

att :first_attribute, String
att :second_attribute, Array

This tells the bottled service which attributes are acceptable, and the type for it. So when not using the generator, or when adding attributes later on, just add another line as you like to declare it. And to allow any type, just leave out the type:

att :third_attribute

Afterwards just add the logic to your new service's call method, and its ready to go:

def call
  puts "My first attribute: #{@first_attribute}"
end

Bonus!

When you generate the service you will notice in the auto-generated call method there is a yield statement:

def call
  # Do something...
  yield if block_given?
end

Bottled Services can accept blocks for those rare times when you want to run the service logic, but need a little something extra that you don't want to have to put in your controller logic, or have to write another service for, just pass the block in when initiating with the class call method, and it will be available to yield from your service instances call method:

ExampleService.call(some_valid_params){|first_att, second_att| puts "All the atts! #{first_att}, #{second_att}" }

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/John-Hayes-Reed/bottled_services. 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.

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