Error 401 Invalid client_id or client_secret

API and Webhooks
1

Description
Trying to request access token for oauth 2.0 by POST to /oauth/token ends up here:
{
“reason”: “Invalid client_id or client_secret”,
“error”: “invalid_client”
}
I’ve checked client_id and client_secret again and again…
Posting with axios from a node js app. Tested it with Postman - same result

request-parameters: “grant_type=authorization_code&code=xxxxxxx&redirect_uri=https%3A%2F%2Fad92-86-56-238-188.ngrok.io%2Fzoom%2Fsetoauth%2Fgettokenfromzoom”,

The xxxxxx in the Authorization of headers is base64 encoded “client_id:client_secret” provided in the generated oauth2-app. redirect_uri is whitelisted

Which App Type (OAuth / Chatbot / JWT / Webhook)?
OAuth

Which Endpoint/s?
https://zoom.us/oauth/token

2

Hi @thomashummer ,

Happy to help. Can you please share the url from the page that’s giving you the invalid client_id or client_secret response?

I also noticed you’re using ngrok to authorize. Are you updating the white list link when you reboot your server/the link changes?

Thank you,
Gianni

3

Hi Gianni,
i tried it with ngrok because i had about 100 tries that didn’t work on production-server. Yes i update the whitelist.
My development url is: https://ad92-86-56-238-188.ngrok.io/zoom/setoauth?code=XXXXX
Production: https://logopaedie-ooe.at/zoom/setoauth?code=XXXX

Both systems running and whitelisted

4

Hi @thomashummer ,

Thank you! And to clarify,your Content-Type in the headers is application/x-www-form-urlencoded?

Send the link to this inquiry to developersupport@zoom.us and we can coordinate a time to meet so I can look at your set up on the Marketplace App Credentials page and in Postman.

Gianni