我可以将 graphql 操场中的变量分配给突变的结果吗

Question

If I have a mutation with 2 fields:

type Mutation {
  createSimulation(
    name: String
    simulators: [AvailableSimulators!]!
    timeToLiveInMS: Int
  ): Simulation!
  create(
    simulationID: ID!
    simulator: AvailableSimulators!
    type: String!
    attributes: KeyValuePair
  ): CreateResult!
}

When I run the mutation in the graphql applo server playground, I need a value from the return of createSimulation in a call to create :

Can I somehow assign a variable that I can use in create ?

Answer 1

Not part of the GraphQL standard. Should handle this in the resolver in the backend. It will depend on the technology used, but in most of the technologies you can use results from previous resolvers or call resolvers manually.

Answer 2

No, you should send 2 requests to handle it. The client-side should request createSimulation first to get a response then request another request to create mutation with that UUID.