How can I share generated Storefront access token from admin to storefront?

Technical Q&A
1

My app is public. I registered an embed app and want to use Storefront GraphQL. On install I generate storefront token by

mutation {
  storefrontAccessTokenCreate(input: {
    title: "Pact Act"
  }) {
    storefrontAccessToken {
      accessToken
    }
    userErrors {
      field
      message
    }
  }
}

Then I save it in my app database. Question: how can I access this storefront token stored in my app database? I came up only with one idea: use fetch to my app to get this token and then use it further for next fetch. However this approach is too ugly in my opinion.