Is it possible to build GraphQL query where the second part of the query depends on the result of the first one?

Question

I have a setup where I run a query on the frontend through the router (Apollo Federation Gateway) to two separate services exposing GQL endpoints - serviceA has findItems and serviceB has parseName.

Now I want to run the following query in one go:

query findMyItemDescriptionNameAndParse {
  findItems(id: 1) {
    description {
      name
    }
  }
  parseName(input: $name) {
     parsedName {
        name
     }
  }
}

Can Apollo pass the variables internally or I just have to split the query into two for such case?

Thank you.

Answer 1

Short answer: no. You'd have to run the two queries in sequence. What's preferable however is to define a different query that returns both the name and parsedName that you're looking for. Even better would be to extend the description to include a parsedName field and just write a resolver for that then you'd never need to run sequential queries.