User authentication with React

Hi,

How can I do Authentication Checks in a React application, like you would do for a node application?

How to do it with node: https://help.sap.com/viewer/65de2977205c403bbc107264b8eccf4b/Cloud/en-US/3a8e4372f8e74d05b4ed03a484865e08.html

Best regards,

Ricardo Carvalho