Hi Anwar,
Take a closer look at the API documentation for BigBlueButton
Specifically the excellent APIMate, which lets you create BigBlueButton API calls within a single page app (SPA). See
Note: you do want to have a server component to your application to generate the checksum for API calls (the shared secret stays on your server and is never transmitted to your SPA); otherwise, anyone using your SPA would be able to extract the shared secret from the page and then generate API calls outside your application to your server.
Regards,... Fred