How to always pass browser cookies to all requests made inside of getServerSideProps?

[adrenaline681]

I have my authentication JWT stored in the users cookies. Currently I can pass the cookies to the Axios request doing something like this:

export async function getServerSideProps(context) {
    const cookies = context.req.headers.cookie
    const post = await API.fetchPost(cookies)
    return {props: {post}}
}

And my fetchPost function looks like this:

const API = axios.create({baseURL: 'https://example.com/', withCredentials: true})
export async function fetchPost(cookies) {
    const config =  cookies ? {headers: {'Cookie': cookies}} : {}
    const response = await API.get('posts/', config)
    return response.data
}

I want to avoid having to grab the cookies, forward them to the fetch function and into the axios config every time I have to make a request inside getServerSideProps.
How can I automatically pass the cookies from my browser to my backend API inside getServerSideProps?