deno_graphql.ts

#!/usr/bin/env deno run -q --no-check --cached-only

import SchemaBuilder from "https://esm.sh/@pothos/core@3.13.0";
import { graphql } from "https://esm.sh/graphql@16.5.0/";

const builder = new SchemaBuilder({});

type Meters = number;

type GiraffeShape = {
  name: string;
  age: number;
  height: Meters;
}

const Giraffe = builder.objectRef<GiraffeShape>('Giraffe');


builder.objectType(Giraffe, {
  description: 'Long necks, cool patterns, taller than you.',
  fields: (t) => ({
    name: t.exposeString('name'),
    age: t.exposeInt('age'),
    height: t.exposeFloat('height'),
  }),
});



builder.queryType({
  fields: (t) => ({
    giraffe: t.field({
      type: Giraffe,
      resolve: () => ({
        name: 'Giraffe',
        age: 1,
        height: 2,
      }),
    }),
  }),
});

const schema = builder.toSchema({});
if (import.meta.main) {
  const source = Deno.args[0] ?? `
  query {
    giraffe {
      name
      age
      height
    }
  }
  `;
  const output = await graphql({
    schema,
    source,
  });
  console.log(output);
}