Okta saml springboot as backend successfully on port 8088, need to connect with front end like react and make user session from frontend to backend, please help in achieving this function

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Hi,

I have okta saml springboot as backend successfully on port 8088, need to connect with front end like react and make user session from backend to frontend, frontend is running on port 8080 please help in achieving this functionality. help will be appricated.

Thanks,
Alok