Stitching two different schemas from two different sources

[dbismut]

Hey, thanks for this fabulous lib.

I have a question that may show my ignorance in GraphQL, but I can't really find a solid answer for it.

I have a CMS (Contentful) with entries that link to a Shopify product. When I fetch the Contentful entry, it returns the id of the product in Shopify.

Ideally, what I'd love to do is:

query {
  ContentfulEntry {
     shopifyProduct { # resolves to the Shopify API
        name #comes from Shopify API
        description #comes from Shopify API
    }
  }
}

In Gatsby, I'm able to create a resolver like this one:

createResolvers({
  ContentfulEntry: {
    shopifyProduct: {
      type: 'ShopifyProduct',
      async resolve(source, args, context, info) {
	return await context.nodeModel.findOne({
          type: 'ShopifyProduct',
          query: {
            filter: { shopifyId: { eq: source.shopifyId } }
          }
        })
      }
    }
  }
})

I tried to create two clients, one for Contentful and one for Shopify and adding a custom resolver with the same logic, but unfortunately it seems like urql resolvers can't be async.

I've found a very similar usecase using Apollo and I was curious to know if the same was possible with urql.

Thanks a lot.