NestedHashBuilder

This Ruby gem allows you to easily build nested Ruby Hashes.

Installation

Install the gem and add to the application's Gemfile by executing:

bundle add nested_hash_builder

If bundler is not being used to manage dependencies, install the gem by executing:

gem install nested_hash_builder

Usage

You can use the NestedHashBuilder::build method to easily create nested hashed with arrays etc.

require 'nested_hash_builder'

hash = NestedHashBuilder.build do |h|
  h.user do
    h.name "John"
    h.address do
      h.street "123 Main St"
      h.city "Anytown"
      h.zip "12345"
    end
    h["SOME:STRANGE:KEY"] = 2
    h["another-strange-key"] do
      h.foo "bar"
    end
    h.array!(:contacts) do |c|
      c << h.entry! do |e|
        e.email "john@example.com"
        e.phone "555-1234"
      end
      c << h.entry! do |e|
        e.email "foo@example.com"
        e.phone "222-1234"
      end
    end
  end
end

# The resulting hash looks like:
# {
#   user: {
#     name: "John",
#     address: {
#       street: "123 Main St",
#       city: "Anytown",
#       zip: "12345"
#     },
#     "SOME:STRANGE:KEY": 2,
#     "another-strange-key": {
#       foo: "bar",
#     },
#     contacts: [
#       {
#         email: "john@example.com",
#         phone: "555-1234"
#       },
#       {
#         email: "foo@example.com",
#         phone: "222-1234"
#       },
#     ],
#   }
# }

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test 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 the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/Verseth/nested_hash_builder.