Dialogflow Node SDK permission fail (dialogflow.sessions.detectIntent) - node.js

Question

I got a problem with Node DialogFlow API integration.
I can not have the necessary permissions to make calls to the API, although I have followed all possible documentation.
Here is my Agent Service Account from Dialogflow admin :
Then the Service Account roles :
The "Client de l'API Dialogflow" role detail, where we can see "dialogflow.sessions.detectIntent" :
And finally, the Node error after downloading the JSON file corresponding to the Service Account :
Am I missing something ?
I tried to generate other JSON files, create other Service Accounts, nothing worked...
The Node script is simple, just pasted from the official tutorial :
const projectId = 'newagent-9e77e '; //https://dialogflow.com/docs/agents#settings
const sessionId = 'quickstart-session-id';
const query = 'bonjour';
const languageCode = 'fr-FR';
// Instantiate a DialogFlow client.
const dialogflow = require('dialogflow');
const sessionClient = new dialogflow.SessionsClient();
// 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);
});
Thanks !

Answer 1

The problem was on space on the "projectId" constant.
Shame on me.