Make GraphQL Modules work without useGraphQLModules() plugin

[kensukesaito]

Describe the solution you'd like

import { createYoga } from 'graphql-yoga'
import { createApplication } from 'graphql-modules'

const application = createApplication({
  modules: [xxx, yyy, zzz]
})

// Current
const yoga = createYoga({
  plugins: [
    useGraphQLModules(application)
  ]
})

// Wish
const yoga = createYoga({
  schema: application.schema
})

Why

I would like to use @n1ru4l/graphql-public-schema-filter with GraphQL Modules.

[n1ru4l]

Hey @kensukesaito, you can use the following recipe for serving a public/private schema with graphql-modules and @n1ru4l/graphql-public-schema-filter.

https://codesandbox.io/s/bold-napier-iqcjgp?file=/src/main.ts

import { createYoga, Plugin } from "graphql-yoga";
import { createModule, gql, createApplication } from "graphql-modules";
import { useGraphQLModules } from "@envelop/graphql-modules";
import {
  buildPublicSchema,
  publicDirectiveSDL
} from "@n1ru4l/graphql-public-schema-filter";
import { parse } from "graphql";

const myModule = createModule({
  id: "my-module",
  dirname: __dirname,
  typeDefs: [
    gql`
      type Query {
        private: String!
        public: String! @public
      }
    `,
    parse(publicDirectiveSDL)
  ]
});

const application = createApplication({
  modules: [myModule]
});

const publicSchema = buildPublicSchema({
  schema: application.schema
});

const plugin: Plugin = {
 // set the filtered (public) schema based on headers
  onEnveloped(ctx) {
    const accessAs = ctx.context.request.headers.get("x-access-as");
    if (accessAs !== "private") {
      ctx.setSchema(publicSchema);
    }
  }
};

const yoga = createYoga({
  plugins: [useGraphQLModules(application), plugin]
});

[kensukesaito]

Thank you so much @n1ru4l for your solution and example code! Your help is huge. I'll try.