js
import "https://cdn.jsdelivr.net/gh/supertokens/supertokens-website/bundle/bundle.js"

supertokens.init(
    {
        apiDomain: "http://localhost:8000",
        apiBasePath: "/auth",
    onHandleEvent: (context) => {
        if (context.action === "UNAUTHORISED") {
            // called when the user doesn't have a valid session but made a request that requires one
            // NOTE: This event can fire multiple times


            if (context.sessionExpiredOrRevoked) {
                // the sessionExpiredOrRevoked property is set to true if the current call cleared the session from storage
                // this happens only once, even if multiple tabs sharing the same session are open, making it useful for analytics purposes
                fetch("auth/session/refresh", {method: "POST"}).then(r =>{
                    if (r.status === 200) {
                        console.log("Session refreshed")
                    } else {
                        console.log("Session refresh failed")
                    }
                })
            }
        }
    }
});