Ruby の Tumblr API v2 ラッパー

tumblr4r.rb

require 'oauth'
require 'json'
require 'cgi'

class Tumblr4r
  def initialize(access_token)
    @access_token = access_token
  end

  def api_key
    {api_key: @access_token.consumer.key}
  end

  def self.api_settings
    # method name, path for API, authentication, http method
    "
      info         /v2/blog/%s/info             api_key
      avatar       /v2/blog/%s/avatar           none
      followers    /v2/blog/%s/followers        oauth
      posts        /v2/blog/%s/posts            api_key
      queue        /v2/blog/%s/posts/queue      oauth
      draft        /v2/blog/%s/posts/draft      oauth
      submission   /v2/blog/%s/posts/submission oauth
      create_post  /v2/blog/%s/post             oauth   post
      edit_post    /v2/blog/%s/post/edit        oauth   post
      reblog_post  /v2/blog/%s/post/reblog      oauth   post
      delete_post  /v2/blog/%s/post/delete      oauth   post
      dashboard    /v2/user/dashboard           oauth
      likes        /v2/user/likes               oauth
      following    /v2/user/following           oauth
      follow       /v2/user/follow              oauth   post
      unfollow     /v2/user/unfollow            oauth   post
    ".strip.split("\n").map {|l| l.strip.split(/\s+/)}
  end

  api_settings.each do |api|
    method_name, path, auth, http_method = *api
    http_method ||= 'get'
    if /%s/ =~ path
      define_method method_name do |*args|
        params = args.last.kind_of?(Hash) ? args.pop : {}
        params = api_key.merge params if auth == 'api_key'
        send http_method, path % args, params
      end
    else
      define_method method_name do |params = {}|
        send http_method, path, params
      end
    end
  end

  def get(path, params = {})
    parse_response(@access_token.get(path + '?' + parse_params(params)))
  end

  def post(path, params = {})
    parse_response(@access_token.post(path, stringify_params(params)))
  end

  def parse_params(params = {})
    params.map {|k, v| k.to_s + '=' + CGI.escape(v.to_s)}.join('&')
  end

  def stringify_params(params = {})
    params.inject({}) do |h, (k, v)|
      h[k.to_s] = v.to_s
      h
    end
  end

  def parse_response(res)
    JSON.parse(res.body)
  end
end