JSONPatcher

jsonpatcher provides a DSL to patch semantically wrong JSON

Installation

Add this line to your application's Gemfile:

gem 'jsonpatcher'

And then execute:

$ bundle

Or install it yourself as:

$ gem install jsonpatcher

Usage

require 'jsonpatcher'

# patch array
bad_json = '["1","2","3"]' # (elements should be Number)
patcher = JSONPatcher.new {
  array ->(element){ element.to_i }
}
p patcher.patch(bad_json) #=> [1, 2, 3]

# patch object
bad_json = '{"name":"shinpei","age":"28"}' # (age should be Number)
patcher = JSONPatcher.new {
  object {
    property :age, ->(v){ v.to_i }
  }
}
p patcher.patch(bad_json) # => '{"name":"shinpei","age":28}'

# patch array of objects
bad_json = '[{"name":"shinpei","age":"28"},{"name":"kosuge","age":"22"}]'
patcher = JSONPatcher.new {
  array {
    object {
      property :age, ->(v){ v.to_i }
    }
  }
}
p patcher.patch(bad_json) # => '[{"name":"shinpei","age":28},{"name":"kosuge","age":22}]'

# patch nested object
bad_json = '{"following":[{"name":"shinpei","age":"28"},{"name":"kosuge","age":"22"}]}'
patcher = JSONPatcher.new {
  object {
    property (:following) {
      array {
        object {
          property :age, ->(v){ v.to_i }
        }
      }
    }
  }
}
p patcher.patch(bad_json) # => '{"following":[{"name":"shinpei","age":28},{"name":"kosuge","age":22}]}'

Contributing

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