如何使用 dialogflow-nodejs-client-v2 将 Dialogflow API v2 与 MS BotFramework 集成

Question

I am building a bot using MS BotFramework functions and I am trying to use Dialogflow with MS BotFramework but I am failing with setting up configuration. dialogflow-nodejs-client-v2 library requires that GOOGLE_APPLICATION_CREDENTIALS environment variable is set. Which I believe I set :

I've also manually uploaded conf file into the, what I believe is the working directory

Yet bot is still failing. I tried various paths as value of a variable including absolute path : D:\\home\\site\\wwwroot\\messages\\test-0691d01dae88.json

still with no luck.

Error I am getting is very cryptic :

Exception while executing function: Functions.messages. mscorlib: One or more errors occurred. Error: package.json does not exist at D:\home\site\wwwroot\package.json
at Object.module.exports.exports.find (D:\home\site\wwwroot\.funcpack\index.js:272715:15)
at Object.module.exports.exports.status.OK (D:\home\site\wwwroot\.funcpack\index.js:51739:12)
at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30)
at Object.<anonymous> (D:\home\site\wwwroot\.funcpack\index.js:271412:12)
at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30)
at Object.module.exports.module.exports (D:\home\site\wwwroot\.funcpack\index.js:84837:27)
at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30)
at Object.<anonymous> (D:\home\site\wwwroot\.funcpack\index.js:260961:14)
at __webpack_require__ (D:\home\site\wwwroot\.funcpack\index.js:21:30)
at new GrpcClient (D:\home\site\wwwroot\.funcpack\index.js:132359:25).

It suggest package.json is missing but this error only occurs if I try to use dialog flow to be specific I require recognizer.js file in index.js.

var apiairecognizer_v2 = require('./recognizer');

It's content is :

"use strict";
const dialogflow = require('dialogflow').v2beta1;
const uuid = require('uuid');
// next line causes error 
const sessionClient = new dialogflow.SessionsClient();

var ApiAiRecognizer = function(){
};

ApiAiRecognizer.prototype.recognize = function (context, done){
}

module.exports = ApiAiRecognizer;

Commenting out sessionClient line will make bot work.

Any idea how to configure Dialogflow v2 with MS BotFramework functions?

thanks

Answer 1

Error seems straight forward for any node.js application. You are using statement:

var apiairecognizer_v2 = require('./recognizer');

So application is expecting package.json file for installing packages like:

{
  "name": "abc",
  "devDependencies": {
     "dialogflow":"^0.6.0",
     "uuid":"^3.3.2",
     "recognizer":"^0.0.2"
  }
}

it is used for installing package by npm.

Error is that it is expecting package.json with all referenced & dependent packages there in location D:\\home\\site\\wwwroot\\package.json

You can either manually add that or try going to that folder if node is installed & npm is used, try

npm install --save recognizer 

or

npm install --save-dev recognizer

it will save latest package in package.json.

It seems you are already getting two packages dialogflow & uuid resolved using npm without error so issue is missing recognizer entry in package.json. Try adding package in package.json there.