401 Unauthorized Auth0 - OpenID Client - NodeJs/ExpressJs with PassportJS

Hi everyone!
As commonly used to do like normal dev people, I started surfing around Auth0, ‘get started’ pages and consulting documentation.

I’ve followed up NPM Documentation about OpenID Client refering me the parameters needed to pass to instantiate Issuer -> Client and then Strategy for authentication.

You can see my github repo where I’m actually struggling with ‘tentative’ programming as the solution given in NPM is quite incomplete.

Do not mind about publicly revealing id and secret. I trust community.
At some point I was finally able to reach the phase where the application have to send back code and state from callback url after the login. I was able to login but not to exchange tokens as Logs says.

What am I doing wrong?
(below some logs)

Best regards and thanks in advice for tips and helps.

“date”: “2018-10-10T23:35:25.327Z”,
“type”: “s”,
“connection_id”: “”,
“client_id”: “l4VFVjxCyb7MNFFJFevaIo3u4M0sWxND”,
“client_name”: “Auth0 Management API (Test Application)”,
“ip”: “”,
“user_agent”: “Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36”,
“details”: {
“prompts”: ,
“completedAt”: 1539214525327,
“elapsedTime”: null
“hostname”: “jrumandal.eu.auth0.com”,
“user_id”: “auth0|5bbe690c5d822c430a98b397”,
“user_name”: “guest@guest.guest”,
“log_id”: “90020181010233525327961394437582863982146684401458610178”
Exchange token
“date”: “2018-10-10T22:12:38.954Z”,
“type”: “feacft”,
“description”: “Unauthorized”,
“connection_id”: “”,
“client_id”: null,
“client_name”: null,
“ip”: “”,
“user_agent”: “openid-client/2.4.3 (https://github.com/panva/node-openid-client)”,
“hostname”: “jrumandal.eu.auth0.com”,
“user_id”: “”,
“user_name”: “”,
“log_id”: “90020181010221238956752082701665369813482244016219095042”

Hey there!

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