Contents

module ParcelApi
  class Client

    attr_accessor :client_id,
      :client_secret,
      :username,
      :password,
      :address,
      :auth_address

    def self.connection
      @connection ||= new.connection
    end

    def initialize
      @client_id     = client_id     || ENV['CLIENT_ID']
      @client_secret = client_secret || ENV['CLIENT_SECRET']
      @username      = username      || ENV['USERNAME']
      @password      = password      || ENV['PASSWORD']
      @address       = address       || 'https://api.nzpost.co.nz'
      @auth_address  = auth_address  || 'https://oauth.nzpost.co.nz/as/token.oauth2'
    end

    def connection
      Faraday.new(url: @address) do |conn|
        conn.authorization 'Bearer', token
        conn.headers['client_id'] = @client_id
        conn.request  :json
        conn.response :json, :content_type => /\bjson$/
        conn.use      FaradayMiddleware::RaiseHttpException
        conn.adapter  Faraday.default_adapter
      end
    end

    private

    def token
      params = {
        client_id:     @client_id,
        client_secret: @client_secret,
        username:      @username,
        password:      @password,
        grant_type:    'password',
      }

      auth_api = Faraday.new do |conn|
        conn.request  :url_encoded
        conn.response :json
        conn.use      FaradayMiddleware::RaiseHttpException
        conn.adapter  Faraday.default_adapter
      end
      response = auth_api.post @auth_address, params
      response.body['access_token']
    end

  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
parcel_api-0.4.1	lib/parcel_api/client.rb