block5.javascript

// Get environment variables
const YOUR_VONAGE_NUMBER = process.env.YOUR_VONAGE_NUMBER;
const YOUR_PHONE_NUMBER = process.env.YOUR_PHONE_NUMBER;

exports.helloWorld = (req, res) => {
    // Check if there's DTMF payload in the request body
    if (req.body.dtmf) {
        // (2.2) Connect call to the number in the DTMF payload
        res.json([{
                action: 'talk',
                text: 'Connecting'
            },
            {
                action: 'connect',
                from: YOUR_VONAGE_NUMBER,
                endpoint: [{
                    type: 'phone',
                    number: req.body.dtmf.digits
                }]
            }
        ])
    } else {
        // Check if you're the caller
        if (req.query.from === YOUR_PHONE_NUMBER) {
            // (2.1) Capture destination number via DTMF input
            res.json([{
                    action: 'talk',
                    text: 'Please enter a phone number in international format, omitting the leading plus sign. End with the pound key.'
                },
                {
                    action: 'input',
                    type: ['dtmf'],
                    dtmf: {
                        timeOut: 10,
                        maxDigits: 15,
                        submitOnHash: true
                    },
                    eventUrl: ["https://europe-west2-my-proxy-calling-project.cloudfunctions.net/proxy-call"]
                }
            ])
        } else {
            // (1) Connect caller to your phone number
            res.json([{
                    action: 'talk',
                    text: 'Please wait while we connect you'
                },
                {
                    action: 'connect',
                    from: YOUR_VONAGE_NUMBER,
                    endpoint: [{
                        type: 'phone',
                        number: YOUR_PHONE_NUMBER
                    }]
                }
            ])
        }
    }
};