json2ruby

A ruby rool for generating POROs from JSON data. It is intended to generate ruby model classes/modules from existing JSON data, e.g. responses from an API.

The tool will 'fold down' objects with identical fields - i.e. if an object has exactly the same field names and types as another, it will assume they are the same type.

'Root' entities are named after the files that they are parsed from. Entities with no obvious name (items in an array, for instance) are named Unknown<x> where x increments from 1.

Installation

gem install json2ruby

Usage

json2ruby.rb [options] <file.json> [<file.json>....]

Option Flags	Default	Description
-o, --outputdir	./classes	The output directory for Ruby files
-m, --modulename		The Ruby module for files
-s, --superclass		The superclass for classes
-r, --require		Add ruby require to files
-i, --include		Add ruby include to files
-e, --extend		Add ruby extend to files
-M, --modules		Generate Ruby modules, not classes
-a, --attributemethod	attr_accessor	Use a custom attribute definition method
-c, --collectionmethod	attr_accessor	Use a custom collection definition method
-t, --types		Include type name in attribute definition call
-b, --baseless		Don't generate for the root object in each file
-f, --forceoverwrite		Overwrite Existing files
-N, --forcenumeric		Use Numeric instead of Integer/Float
-v, --verbose		Be verbose, List every operation/file

Example

Generate a simple set of POROs from an API response JSON file, be verbose:

./json2ruby.rb -v data.json

Generate a (very) basic set of apotonick/representable compatible representer modules:

./json2ruby.rb -r representable/json-i Representable::JSON -M -a property -c collection data.json 

Notes

The option -m, --modulename can take path module names in FirstModule::Submodule::SubSubModule format, which will produce classes like so:

module FirstModule
  module Submodule
    module SubSubModule
      class JSONObject
      ...
      end
    end
  end
end

The option -N, --forcenumeric can be useful to fold down identical types where an attribute which is a float happens to have an integer value, to avoid generating two identical types.

Documentation

Regenerate the documentation with 'rdoc':

rdoc

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request