refactor: use new nexus package

api/graphql/Post.ts

@@ -1,10 +1,35 @@
 import {
   extendType,
   intArg,
+  interfaceType,
   nonNull,
   objectType,
-  stringArg,
-} from '@nexus/schema'
+  stringArg
+} from 'nexus'
+
+export const Media = interfaceType({
+  name: 'Media',
+  resolveType(source) {
+    return 'director' in source ? 'Movie' : 'Song'
+  },
+  definition(t) {
+    t.string('url')
+  },
+})
+export const Movie = objectType({
+  name: 'Movie',
+  definition(t) {
+    t.implements('Media')
+    t.string('director')
+  },
+})
+export const Song = objectType({
+  name: 'Song',
+  definition(t) {
+    t.implements('Media')
+    t.string('album')
+  },
+})
 
 export const Post = objectType({
   name: 'Post',

api/schema.ts

@@ -1,20 +1,14 @@
-import { makeSchema } from '@nexus/schema'
+import { makeSchema } from 'nexus'
 import { join } from 'path'
 import * as types from './graphql'
 
 export const schema = makeSchema({
   types,
   outputs: {
     typegen: join(__dirname, '../node_modules/@types/nexus-typegen/index.d.ts'),
-    schema: join(__dirname, '../schema.graphql'),
   },
-  typegenAutoConfig: {
-    sources: [
-      {
-        source: join(__dirname, './context.ts'),
-        alias: 'ContextModule',
-      },
-    ],
-    contextType: 'ContextModule.Context',
+  contextType: {
+    module: join(__dirname, './context.ts'),
+    export: 'Context'
   },
 })

package.json

@@ -7,10 +7,10 @@
   "license": "MIT",
   "keywords": [],
   "dependencies": {
-    "@nexus/schema": "^0.19.2",
     "@prisma/client": "^2.12.1",
     "apollo-server": "^2.19.0",
     "graphql": "^15.4.0",
+    "nexus": "^1.0.0",
     "nexus-plugin-prisma": "0.10.0"
   },
   "devDependencies": {

schema.graphql

@@ -2,6 +2,15 @@
 ### Do not make changes to this file directly
 
 
+interface Media {
+  url: String
+}
+
+type Movie implements Media {
+  director: String
+  url: String
+}
+
 type Mutation {
   createDraft(body: String!, title: String!): Post
   publish(draftId: Int!): Post
@@ -18,3 +27,8 @@ type Query {
   drafts: [Post]
   posts: [Post]
 }
+
+type Song implements Media {
+  album: String
+  url: String
+}