Sinatra::Jsonp

JSONP output helper for Sinatra. Automatically detects callback params and returns proper JSONP output. If callback params where not detected it returns plain JSON. Works with jQuery jQuery.getJSON out of the box.

Installation

Gem install

gem install sinatra-jsonp

Gemfile

gem 'sinatra-jsonp'

Usage

Classic:

require "sinatra"
require "sinatra/jsonp"

get '/hello' do
  data = ["hello","hi","hallo"]
  JSONP data      # JSONP is an alias for jsonp method
end

# define your own callback as second string param
get '/hi' do
  data = ["hello","hi","hallo"]
  jsonp data, 'functionA'
end

# same with symbol param
get '/hallo' do
  data = ["hello","hi","hallo"]
  jsonp data, :functionB
end

Modular:

require "sinatra/base"
require "sinatra/jsonp"

class Foo < Sinatra::Base
  helpers Sinatra::Jsonp

  # Enable JSON pretty output
  #enable :json_pretty

  get '/' do
    data = ["hello","hi","hallo"]
    jsonp data
  end
end

Links

• jQuery
• Sinatra

License

MIT License. See LICENSE for details.