r.rb

# Simple SimpleNote client library
# Erik Kastner 2010-07-18

require 'rubygems'
require 'rest_client'
require 'base64'
require 'json'

class SimpleNote
  def initialize(email, password)
    @email = email
    @token = get_token(email, password)
  end
  
  def base
    "https://simple-note.appspot.com/api/"
  end
  
  def client
    @client ||= RestClient::Resource.new(base)
  end
  
  def get_token(email, password)
    data = Base64.encode64("password=#{password}&email=#{email}")
    client['login'].post(data)
  end
  
  def [](key)
    if key.kind_of?(Fixnum)
      Note.fetch(self, notes[key]["key"])
    elsif key.kind_of?(String)
      Note.fetch(self, key)
    elsif key.kind_of?(Regexp)
      search(key.source)
    end
  end
  
  def search(query)
    results = JSON.parse(client['search' + def_params(:query => query)].get)
    return nil if results["Response"]["totalRecords"] == 0
    results["Response"]["Results"].map {|r| Note.fetch(self, r["key"])}
  end
  
  def notes(force = false)
    @notes = nil if force
    @notes ||= JSON.parse(client['index' + def_params].get.to_s)
  end
  
  def new_note(note = nil)
    Note.new(self, note)
  end
  
  def get_note(key)
    client['note' + def_params(:key => key)].get
  end
  
  def put_note(note, key=nil)
    note = Base64.encode64(note)
    client['note' + def_params((key ? {:key => key} : {}))].post(note)
  end
  
  def del_note(key)
    client['delete' + def_params(:key => key)].get
  end
  
  def def_params(hash = {})
    params({:auth => @token, :email => @email}.merge(hash))
  end
  
  def params(hash)
    '?' + RestClient::Payload.generate(hash).to_s
  end
  
  class Note
    attr_accessor :key
    attr_accessor :note
    
    def self.fetch(simplenote, key)
      new(simplenote, simplenote.get_note(key), key)
    end
    
    def initialize(simplenote, note="", key=nil)
      @sn = simplenote
      @note = note
      @key = key
    end
    
    def save
      @key = @sn.put_note(@note, @key).to_s
    end
    
    def delete
      @sn.del_note(@key)
    end
    
    def to_s
      @note
    end
  end
end

if $0 == __FILE__
  simplenote = SimpleNote.new(email, password)
  my_note = simplenote[/my note/].first # Find a note
  my_note.note = my_note.to_s + "\nAnother line!"
  my_note.save
  
  new_note = simplenote.new_note
  new_note.note = "All around the mullberry bush"
  new_note.save
  
  first_note = simplenote[0]
  puts first_note
end