Support empty Query, Mutation, etc.

[RobertVillalba]

I have multiple files with each extending the Query type and a base file with an empty Query.

# base.graphqxl

import "things"

type Query

# things.graphqxl

extend type Query {
  getThings: [Thing!]!
}

...

When running the generator I get

Error: Could not parse GraphQXL spec:

 --> 9:1
  |
9 | type Mutation {}
  | ^---
  |
  = expected type_selection_set, implements, directive, or generic
make: *** [Makefile:16: generated/sensorman.gql] Error 1

[gabotechs]

The recommended way of doing this with GraphQXL would be to instead rely on the already existing composition mechanisms, for example:

# products.graphqxl

type _ProductsQuery {
  product(id: ID!): Product
  productByName(name: String!): Product
  allProducts: [Product!]!
}

# users.graphqxl

type _UsersQuery {
  user(id: ID!): User
  userByName(name: String!): User
  allUsers: [User!]!
}

# main.graphqxl

import 'products'
import 'users'

type Query {
  ..._ProductsQuery
  ..._UsersQuery
}

That way, it's very clear and explicit the order of the fields in the final Query type.

Take a look at this example

[RobertVillalba]

Ah that makes perfect sense thank you!