Environs
A simple wrapper around the ENV hash that by default raises an error when value requested is not set.
Installation
Add this line to your application's Gemfile:
gem 'environs'
And then execute:
$ bundle
Or install it yourself as:
$ gem install environs
Usage
This gem provides an Env
class that dynamically retrieves environment variables based on the name of the method called on the Env
class object. Method names are converted to SCREAMING_SNAKE_CASE
, e.g. Env.foo_bar
tries to retrieve ENV['FOO_BAR']
. If a non-nil value is not returned for the key, then an error is raised. Nil values can be allowed by passing a Hash with the allow_nil
key set to true.
require 'environs'
ENV['FOO'] = nil
Env.foo
# => 'MissingEnvVarError "The FOO environment variable is not set."'
Env.foo(allow_nil: true)
# => nil
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request