Send parameters to webhook on dialogflow sdk v2

Question

I\'m trying to send some parameters to dialogflow (api.ai) such as username, email, etc but I couldn\'t figure it out. The problem is I cannot get/set any specific data (suc

Answer 1

Dialogflow's v2 API uses gRPC and has a few quirks, one of which you've run into. If you look at the samples for the Node.js library you can see how to workaround this. You'll need to impliment a jsonToStructProto method to convert your JavaScript object to a proto struct or just copy the structjson.js file in the sample in this gist. Below is a fully working example using the structjson.js file:

// Imports the Dialogflow library
const dialogflow = require('dialogflow');

// Import the JSON to gRPC struct converter
const structjson = require('./structjson.js');

// Instantiates a sessison client
const sessionClient = new dialogflow.SessionsClient();

// The path to identify the agent that owns the created intent.
const sessionPath = sessionClient.sessionPath(projectId, sessionId);

// The text query request.
const request = {
  session: sessionPath,
  queryInput: {
    event: {
      name: eventName,
      parameters: structjson.jsonToStructProto({foo: 'bar'}),
      languageCode: languageCode,
    },
  },
};

sessionClient
  .detectIntent(request)
  .then(responses => {
    console.log('Detected intent');
    logQueryResult(sessionClient, responses[0].queryResult);
  })
  .catch(err => {
    console.error('ERROR:', err);
  });