When you using HTTParty, you can replace the parser of the response.

Create the subclass of HTTParty::Parser and override the “json” method.

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require 'yajl'
class CustomYajlParser < HTTParty::Parser
  def json
    Yajl::Parser.parse(body)
  end
end

“body” attribute implements the HTTP response body, as JSON.

Then, use this parser in your class including HTTParty.

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class SampleClient
  include HTTParty
  base_uri 'twitter.com'
  parser CustomYajlParser
end
 
SampleClient.get '/statuses/public_timeline.json'

Yajl should be faster than pure ruby JSON lib.

Now you can customize parser, for example you can parse XML-based API by sax-machine directly and then return a object.

More more info:

• https://github.com/jnunemaker/httparty
• https://github.com/jnunemaker/httparty/blob/master/lib/httparty/parser.rb
• https://github.com/jnunemaker/httparty/blob/master/examples/custom_parsers.rb