如何连接 Google Actions 和 Watson？

Question

I'm trying to connect Watson to Google Actions, my function is in firebase, and when I test only the connection with Watson, it works. But when I try to test it in Google console, it closes the project.

This is my code in Firebase Cloud Functions:

const {actionssdk} = require('actions-on-google');
const functions = require('firebase-functions');

const app = actionssdk({debug: true});
var AssistantV1 = require('watson-developer-cloud/assistant/v1');

app.intent('actions.intent.MAIN', (conv) => {
    conv.ask('Olá, como posso lhe ajudar?');
});


app.intent('actions.intent.TEXT', (conv, input) => {
    var AssistantV1 = require('watson-developer-cloud/assistant/v1');
    var assistant = new AssistantV1({
        username: '###############',
        password: '###############',
        url:'###############',
        version: '2018-07-10'
    });

    assistant.message(
    {
        workspace_id: '###############',
        input: { text: result },
        headers: {'Custom-Header': 'custom',
        'Accept-Language': 'custom'
        }
    },
    function(response) {
        conv.ask(response.output.text[0]);
    }
    );
});

exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);`

Answer 1

The issue is that assistant.message() takes a callback function as a parameter to handle the response, but the actions-on-google library expects you to return a Promise when you are dealing with async calls. You will need to wrap this async call in a Promise and then return this Promise to the aog library so it knows to wait for the callback to complete.

I haven't tested the code, but I suspect something like this should work:

return new Promise( (resolve, reject) => {
  assistant.message({
    workspace_id: '###############',
    input: { text: result },
    headers: {
      'Custom-Header': 'custom',
      'Accept-Language': 'custom'
    }
  },
  function(response) {
    conv.ask(response.output.text[0]);
    resolve();
  });

});