Thank you for reaching out to the Zoom Developer Forum. Just to make sure that I understand, are you looking for a link to the Zoom Web Client or the Zoom Web SDK?
If you are referring to joining a meeting hosted in the Web Client, please see the following post:
When it comes to joining a meeting from the Web SDK, this would need to be handled by the router in the application that you created.
I hope that helps! Let me know if you have any questions.