I have made a working OTP Flow with Node.js and used the Verify API from Twilio for the SMS OTP. I tested it on Postman by adding and testing request everything from getting the OTP and verifying the OTP looks good.

Now I want to integrate this functionality in Dialogflow. I'm having problems doing it, and I cant seem to find any videos or documentation to help me. For just this phone number verification with a OTP for an intent that asks for the user's number. Then verifies that number after making the necessary API calls. I would like to ask for some help because i want to use this Twilio SMS verification functionality to verify phone numbers given through a chatbot. If you can refer me to some documentation or anything at all really that would help that will be fine. Thank you

This is just some part of the Node.js code I used to do this.

const client = require("twilio")(config.accountSID, config.authToken)

app.get('/login', (req, res) => {
    client
          .verify
          .services(config.serviceID)
          .verifications
          .create({
              to: `+${req.query.phonenumber}`,
              channel: req.query.channel,
          })
          .then((data) => {
              res.status(200).send(data)
          })
})

app.get('/verify', (req,res) => {
    client
          .verify
          .services(config.serviceID)
          .verificationChecks
          .create({
            to: `+${req.query.phonenumber}`,
            code: req.query.code,
          })
          .then((data) => {
              res.status(200).send(data)
          })
})