gql: field argument for input objects

[benneq]

I'm not sure whether this is a feature request, a bug report or a documentation issue.

I'm using apollo-server-express 2.0.2 with this code:

const { ApolloServer, gql } = require('apollo-server-express');

const typeDefs = gql`
    ...
`

const resolvers = {
    Query: { ... }
}

const app = express();
const server = new ApolloServer({ typeDefs, resolvers });
server.applyMiddleware({ app });

Now I was trying to use Field Arguments with an input object:

const typeDefs = gql`
    input GeoFilter {
        location: [Float]
        distance(unit: String): Float
    }
`

This results in an error:

GraphQLError: Syntax Error: Expected :, found (

When switching from input to type everything works:

const typeDefs = gql`
    type GeoFilter {
        location: [Float]
        distance(unit: String): Float
    }
`

I haven't found anything on the internet about using input with field arguments.

How does this work? Or what am I missing?

[sbrichardson]

Does this maybe help?

Dumbly assumes to return a GeoFilter, would probably return a list of locations etc. You wouldn't really pass an argument to the input, you would just pass another property, since input is basically an argument. It can be (input, another) or just add inside the input type

const typeDefs = gql`

  type GeoFilter {
    location: [Float]
    distance(unit: String): Float
  }

  input GeoFilterInput {
    location: [Float]
    distance: Float
  }

  extend type Query {
    createLocation(input: GeoFilterInput!): GeoFilter
    findLocation(input: GeoFilterInput!): GeoFilter
  }


query {
  findLocation(input: { location: [123, 123], distance: 25 }) {
    location
    distance(unit: 'km')
  }
}

// results

[benneq]

Thank you. I think it was a little too late in the night for me... I mixed up a few things.