如何在 twiml.gather 中传递参数？

如何解决如何在 twiml.gather 中传递参数？

我刚开始使用 Twilio 和 Javascript。我正在使用 Twilio 的 Function 产品，并试图将参数从我的 voice-ivr 传递到我的 handle-user-input 函数。我试图通过在操作 URL 中传递参数来做到这一点，但这似乎不起作用。知道为什么它不起作用，或者是否有更好的方法在这两个函数之间传递参数？

这是我的 voice-ivr 文件：

exports.handler = function (context,event,callback,) {
  let twiml = new Twilio.twiml.VoiceResponse();
  const gather = twiml.gather({
    numDigits: 1,action: 'handle-user-input?room=0',hints: 'room 1,room 2',input: 'speech dtmf',});
  
  gather.say('Press 1 to go to Room 1 or 2 to go to Room 2.');
  twiml.say(`Sorry we Couldn't understand you`);
  twiml.redirect();
  callback(null,twiml);
};

还有我的 handle-user-input 文件：

function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi,function(m,key,value) {
        vars[key] = value;
    });
    return vars;
}

exports.handler = function (context,callback) {
  let UserInput = event.Digits || event.SpeechResult;
  let twiml = new Twilio.twiml.VoiceResponse();

  // No User Input
  if (!UserInput) {
    twiml.say('Sorry something went wrong. Please call again');
    return callback(null,twiml);
  }

  if (UserInput.length > 1) {
    if (UserInput.toLowerCase().includes('room 1')) {
      UserInput = '1';
    } else if (UserInput.toLowerCase().includes('room 2')) {
      UserInput = '2';
    }
  }
 
  var room_number = getUrlVars()["room"];
 
  // User Input is a digit: move to according room
  switch (room_number) {
    case 1:
      switch (UserInput) {
      case '1':
        twiml.say("Thank you. You will Now be forwarded to room 2.")
        twiml.redirect('room-2');
        break;
      case '2':
        twiml.say('Thank you. You will Now be forwarded to the home.');
        twiml.redirect('voice-ivr');
        break;
      default:
        twiml.say('We are sorry,we did not recognize your option. Please try again.');
        twiml.redirect('room-1');
      }
      break;
      
    case 2: 
      switch (UserInput) {
      case '1':
        twiml.say("Thank you. You will Now be forwarded to the home.")
        twiml.redirect('voice-ivr');
        break;
      default:
        twiml.say('We are sorry,we did not recognize your option. Please try again.');
        twiml.redirect('room-2');
      }
      break;
      
    default:
    twiml.say("Default case");
      switch (UserInput) {
      case '1':
        twiml.say("Thank you. You will Now be moved to Room 1.")
        twiml.redirect('room-1');
        break;
      case '2':
        twiml.say('You are Now entering Room 2.');
        twiml.redirect('room-2');
        break;
      default:
        twiml.say('We are sorry,we did not recognize your option. Please try again.');
        twiml.redirect('voice-ivr');
      }
  }

  callback(null,twiml);
  }

预先感谢您的帮助。

解决方法

URL 查询参数 ?room=0 被传递到事件对象中的 Twilio 函数（当 Gather 动词调用操作 URL 时），因此您可以使用 event.room 访问它。

此外，由于您没有使用 speech，您应该将其从 Gather 属性中删除。

您使用的是 Node.js，因此没有 Window 对象。