Dialogflow easy way for authorization

Does there exist an easy way to connect my Dialogflow agent to my node.js code? When I use this code with the correct projectID taken from the Dialogflow agent's settings page, I have the following error:

node.js

Error: Unexpected error while acquiring application default credentials: Could not load the default credentials. Browse to https://developers.google.com/accounts/docs/application-default-credentials for more information.

const sessionClient = new dialogflow.SessionsClient();
const sessionPath = sessionClient.sessionPath(projectId, sessionId);


I visited the page, but for what I want I think is quite confused (they quotes other API and a lot of setting), how can I resolve this?

I would like to do it taking informations from a file and loading all without installing losts of APIs or some other...

2 Answers
2

It is not very well documented, but the easiest way to authenticate is using the JSON file provided on your google cloud platform console.

const sessionClient = new dialogflow.SessionsClient(
keyFilename: '/path/to/google.json'
);
const sessionPath = sessionClient.sessionPath(projectId, sessionId);


IAM

I am writing the code, which worked for me. Please follow all the steps provided in Reference link 2 and for coding purpose you can use the snippet provided.

I have also added the sample JSON of Google Cloud Oauth

References:

//Downloaded JSON format


"type": "service_account",
"project_id": "mybot",
"private_key_id": "123456asd",
"private_key": "YOURKEY",
"client_email": "yourID@mybot.iam.gserviceaccount.com",
"client_id": "098091234",
"auth_uri": "https://accounts.google.com/o/oauth2/auth",
"token_uri": "https://oauth2.googleapis.com/token",
"auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
"client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/yourID%40mybot.iam.gserviceaccount.com"



//------*********************---------------------------
//
const projectId = 'mybot';

//https://dialogflow.com/docs/agents#settings
// generate session id (currently hard coded)
const sessionId = '981dbc33-7c54-5419-2cce-edf90efd2170';
const query = 'hello';
const languageCode = 'en-US';

// Instantiate a DialogFlow client.
const dialogflow = require('dialogflow');
let privateKey = 'YourKey';

// as per goolgle json
let clientEmail = "yourID@mybot.iam.gserviceaccount.com";
let config =
credentials:
private_key: privateKey,
client_email: clientEmail


const sessionClient = new dialogflow.SessionsClient(config);

// Define session path
const sessionPath = sessionClient.sessionPath(projectId, sessionId);

// The text query request.
const request =
session: sessionPath,
queryInput:
text:
text: query,
languageCode: languageCode,
,
,
;

// Send request and log result
sessionClient
.detectIntent(request)
.then(responses =>
console.log('Detected intent');
const result = responses[0].queryResult;
console.log(` Query: $result.queryText`);
console.log(` Response: $result.fulfillmentText`);
if (result.intent)
console.log(` Intent: $result.intent.displayName`);
else
console.log(` No intent matched.`);

)
.catch(err =>
console.error('ERROR:', err);
);

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