This is a gem for working with JSON resources from a network source with indifferent and method based access.
Instead of overriding Hash implementation, this wraps a Hash with indifferent access (by symbol or string keys). This makes it fast at runtime, while still providing the necessary lookup method of choice.
There are two types ResouceStruct::StrictStruct and ResourceStruct::FlexStruct.
ResourceStruct::StrictStruct provides a way of wrapping a Hash such that accesses to invalid keys will raise an exception through the method lookup method; it also is immutable.
ResouceStruct::FlexStruct provides a way of wrapping a Hash such that it returns nil instead of raising an exception when the key is not present in the hash.
Add this line to your application's Gemfile:
gem 'resource-struct'And then execute:
$ bundle install
Or install it yourself as:
$ gem install resource-struct
struct = ResourceStruct::StrictStruct.new({ "foo" => 1, "bar" => [{ "baz" => 2 }, 3] })
struct.foo? # => true
struct.brr? # => false
struct.foo # => 1
struct.bar # => [StrictStruct<{ "baz" => 2 }>, 3]
struct.brr # => NoMethodError
struct[:foo] # => 1
struct[:brr] # => nil
struct[:bar, 0, :baz] # => 2
struct[:bar, 0, :brr] # => nilstruct = ResourceStruct::FlexStruct.new({ "foo" => 1, "bar" => [{ "baz" => 2 }, 3] })
struct.foo? # => true
struct.brr? # => false
struct.foo # => 1
struct.bar # => [FlexStruct<{ "baz" => 2 }>, 3]
struct.brr # => nil
struct[:foo] # => 1
struct[:brr] # => nil
struct[:bar, 0, :baz] # => 2
struct[:bar, 0, :brr] # => nilAfter 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 the created tag, and push the .gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/resource-struct.
The gem is available as open source under the terms of the MIT License.