controller/callme_controller.rb

callme_controller.rb

# your Twilio authentication credentials
ACCOUNT_SID = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXX'
ACCOUNT_TOKEN = 'YYYYYYYYYYYYYYYYYYYYYYYYYYYY'

# version of the Twilio REST API to use
API_VERSION = '2010-04-01'

# base URL of this application
BASE_URL =  "localhost:3000" #production ex: "http://appname.heroku.com/callme"

# Outgoing Caller ID you have previously validated with Twilio
CALLER_ID = 'XXX-XXX-XXXX'

class CallmeController < ApplicationController
    
    def index
    end
    
    # Use the Twilio REST API to initiate an outgoing call
    def makecall
        if !params['number']
            redirect_to({ :action => '.', 'msg' => 'Invalid phone number' })
            return
        end
        
        # parameters sent to Twilio REST API
        d = {
            'From' => CALLER_ID,
            'To' => params['number'],
            'Url' => BASE_URL + '/hellomoto.xml',
        }
        begin
            account = Twilio::RestAccount.new(ACCOUNT_SID, ACCOUNT_TOKEN)
            resp = account.request(
                "/#{API_VERSION}/Accounts/#{ACCOUNT_SID}/Calls",
                'POST', d)
            resp.error! unless resp.kind_of? Net::HTTPSuccess
        rescue StandardError => bang
            redirect_to({ :action => '.', 'msg' => "Error #{ bang }" })
            return
        end
        
        redirect_to({ :action => '', 'msg' => "Calling #{ params['number'] }..." })
        
    end
    
    # TwiML response that says the hellomoto to the caller and presents a
    # short menu: 1. repeat the msg, 2. directions, 3. good bye
    def hellomoto
        @postto = BASE_URL + '/directions.xml'
        
        respond_to do |format|
            format.xml { @postto }
        end
    end

    # TwiML response that inspects the caller's menu choice:
    # - says good bye and hangs up if the caller pressed 3
    # - repeats the menu if caller pressed any other digit besides 2 or 3
    # - says the directions if they pressed 2 and redirect back to menu
    def directions
        if params['Digits'] == '3'
            redirect_to BASE_URL + "/goodbye.xml"
            return
        end
        
        if !params['Digits'] or params['Digits'] != '2'
            redirect_to BASE_URL + "/hellomoto.xml" 
            return
        end
        
        @redirectto = BASE_URL + '/hellomoto.xml',
        respond_to do |format|
            format.xml { @redirectto }
        end
    end
    
    # TwiML response saying the goodbye message. Twilio will detect no
    # further commands after the Say and hangup
    def goodbye
        respond_to do |format|
            format.xml
        end
    end
    
end