project-codepen/src/actions/gql.js

const getGQL = url => 
    (query, variables) =>
        fetch(url , {
            method: 'POST',
            headers: {
                "content-type": "application/json",
                ...(localStorage.authToken ? { Authorization: "Bearer " + localStorage.authToken } : {})
            },
            body: JSON.stringify({query, variables})
        }).then(res => res.json())

export const gql = getGQL("/graphql");