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How do I correctly resume a session for a user?

I've just started learning next.js (TypeScript) and I've run into a problem.

I need to authorize a user to restore his session. The authorization key is a token that is stored in cookies. How to implement this task correctly?

At the moment, I have simply created a component in which I have embedded RootLayout, and in the component itself I am already executing an API request to search for a user by token, but with this approach I get various errors. Perhaps there are some other options?

'use client';
import { fetcher } from '@/helpers/fetcher';
import { useUserStore } from '@/store/user';
import { QueryCache, useQuery } from '@tanstack/react-query';
import { deleteCookie, getCookie } from 'cookies-next';
import { useEffect } from 'react';

export default function Auth() {
    const { user, setUser } = useUserStore();
    const rememberToken = getCookie('remember_token');
    if (user == null && rememberToken != null) {        
        const { isSuccess, data, } = useQuery({
            queryKey: ['loginToken'],
            queryFn: async () => await fetcher(process.env.API + '/auth/login', {
                method: 'POST',
                headers: {
                    Accept: 'application/json',
                    'Content-Type': 'application/json',
                },
                body: JSON.stringify({
                    remember_token: rememberToken,
                })
            }),
        })
        if (isSuccess && data != null) {
            const userData = data.user;
            setUser({
                id: userData.id,
                rememberToken: userData.remember_token,
                email: userData.email,
            }, true);
        } else deleteCookie('remember_token');
    }
    return <></>
}

P.s: The useUserStore was created using zustand to store global user information.

Via Active questions tagged javascript - Stack Overflow https://ift.tt/FqXm5gC
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