config.js

import { withData } from 'next-apollo'
import { HttpLink } from 'apollo-link-http'

const config = {
  link: new HttpLink({
    uri: 'https://data.<cluster_name>.hasura-app.io/v1alpha1/graphql',
    headers: {
      'Authorization': `Bearer <token>`,
      'X-Hasura-Role': 'admin'
    },
  })
}

export default withData(config)