import { GraphQLInputObjectType } from "https://dotland.deno.dev/x/graphql_deno@v15.0.0/lib/type/definition.d.ts";

Input Object Type Definition

An input object defines a structured collection of fields which may be supplied to a field argument.

Using NonNull will ensure that a value must be provided by the query

Example:

const GeoPoint = new GraphQLInputObjectType({
  name: 'GeoPoint',
  fields: {
    lat: { type: new GraphQLNonNull(GraphQLFloat) },
    lon: { type: new GraphQLNonNull(GraphQLFloat) },
    alt: { type: GraphQLFloat, defaultValue: 0 },
  }
});