From 96cdb827c8989564f40baae9fd795441240b6b7d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kamil=20My=C5=9Bliwiec?= <mail@kamilmysliwiec.com>
Date: Fri, 17 Jan 2025 11:10:58 +0100
Subject: [PATCH] sample: update graphql samples

---
 sample/12-graphql-schema-first/package.json   |  4 ++--
 sample/22-graphql-prisma/package.json         | 20 +++++++++----------
 .../22-graphql-prisma/src/graphql.schema.ts   |  2 +-
 .../src/posts/posts.resolvers.ts              |  8 ++++----
 .../src/prisma/prisma.service.ts              |  8 +-------
 sample/23-graphql-code-first/package.json     | 14 ++++++-------
 sample/23-graphql-code-first/schema.gql       |  2 +-
 .../src/recipes/recipes.resolver.ts           |  2 +-
 .../gateway/package.json                      | 17 ++++++++--------
 .../posts-application/package.json            | 10 +++++-----
 .../src/posts/posts.module.ts                 |  6 ++++--
 .../users-application/package.json            | 10 +++++-----
 .../src/users/users.module.ts                 |  6 ++++--
 .../gateway/package.json                      | 12 +++++------
 .../posts-application/package.json            | 12 +++++------
 .../posts-application/src/posts/posts.graphql |  1 +
 .../users-application/package.json            | 19 +++++++++---------
 sample/33-graphql-mercurius/package.json      |  6 +++---
 sample/33-graphql-mercurius/schema.gql        |  2 +-
 19 files changed, 81 insertions(+), 80 deletions(-)

diff --git a/sample/12-graphql-schema-first/package.json b/sample/12-graphql-schema-first/package.json
index bf081b8ab..23f81f593 100644
--- a/sample/12-graphql-schema-first/package.json
+++ b/sample/12-graphql-schema-first/package.json
@@ -21,10 +21,10 @@
   "dependencies": {
     "@apollo/server": "4.11.3",
     "@graphql-tools/utils": "10.7.2",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
     "class-transformer": "0.5.1",
     "class-validator": "0.14.1",
diff --git a/sample/22-graphql-prisma/package.json b/sample/22-graphql-prisma/package.json
index 2d6d4ab50..98df74126 100644
--- a/sample/22-graphql-prisma/package.json
+++ b/sample/22-graphql-prisma/package.json
@@ -21,16 +21,16 @@
   },
   "dependencies": {
     "@apollo/server": "4.11.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "@prisma/client": "4.16.2",
+    "@prisma/client": "6.2.1",
     "class-transformer": "0.5.1",
     "class-validator": "0.14.1",
-    "graphql": "16.8.1",
-    "graphql-subscriptions": "2.0.0",
+    "graphql": "16.10.0",
+    "graphql-subscriptions": "3.0.0",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
     "rxjs": "7.8.1"
@@ -41,11 +41,11 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
-    "@types/node": "22.10.6",
+    "@types/express": "5.0.0",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
-    "@typescript-eslint/eslint-plugin": "5.62.0",
-    "@typescript-eslint/parser": "5.62.0",
+    "@typescript-eslint/eslint-plugin": "8.20.0",
+    "@typescript-eslint/parser": "8.20.0",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
     "eslint-plugin-import": "2.31.0",
@@ -53,7 +53,7 @@
     "globals": "15.14.0",
     "jest": "29.7.0",
     "prettier": "3.4.2",
-    "prisma": "^4.15.0",
+    "prisma": "^6.2.1",
     "supertest": "7.0.0",
     "ts-jest": "29.2.5",
     "ts-loader": "9.5.2",
diff --git a/sample/22-graphql-prisma/src/graphql.schema.ts b/sample/22-graphql-prisma/src/graphql.schema.ts
index 38a134f7f..6f4a7dc5c 100755
--- a/sample/22-graphql-prisma/src/graphql.schema.ts
+++ b/sample/22-graphql-prisma/src/graphql.schema.ts
@@ -5,7 +5,7 @@
  */
 
 /* tslint:disable */
-/* eslint-disable */
+
 export class NewPost {
   title: string;
   text: string;
diff --git a/sample/22-graphql-prisma/src/posts/posts.resolvers.ts b/sample/22-graphql-prisma/src/posts/posts.resolvers.ts
index 5ecb8c28f..7516c1283 100755
--- a/sample/22-graphql-prisma/src/posts/posts.resolvers.ts
+++ b/sample/22-graphql-prisma/src/posts/posts.resolvers.ts
@@ -1,7 +1,7 @@
-import { Resolver, Query, Mutation, Args, Subscription } from '@nestjs/graphql';
-import { PostsService } from './posts.service';
-import { Post, NewPost, UpdatePost } from 'src/graphql.schema';
+import { Args, Mutation, Query, Resolver, Subscription } from '@nestjs/graphql';
 import { PubSub } from 'graphql-subscriptions';
+import { NewPost, Post, UpdatePost } from 'src/graphql.schema';
+import { PostsService } from './posts.service';
 
 const pubSub = new PubSub();
 
@@ -38,6 +38,6 @@ export class PostsResolvers {
 
   @Subscription('postCreated')
   postCreated() {
-    return pubSub.asyncIterator('postCreated');
+    return pubSub.asyncIterableIterator('postCreated');
   }
 }
diff --git a/sample/22-graphql-prisma/src/prisma/prisma.service.ts b/sample/22-graphql-prisma/src/prisma/prisma.service.ts
index edf653202..359f950b7 100755
--- a/sample/22-graphql-prisma/src/prisma/prisma.service.ts
+++ b/sample/22-graphql-prisma/src/prisma/prisma.service.ts
@@ -1,4 +1,4 @@
-import { INestApplication, Injectable, OnModuleInit } from '@nestjs/common';
+import { Injectable, OnModuleInit } from '@nestjs/common';
 import { PrismaClient } from '@prisma/client';
 
 @Injectable()
@@ -6,10 +6,4 @@ export class PrismaService extends PrismaClient implements OnModuleInit {
   async onModuleInit() {
     await this.$connect();
   }
-
-  async enableShutdownHooks(app: INestApplication) {
-    this.$on('beforeExit', async () => {
-      await app.close();
-    });
-  }
 }
diff --git a/sample/23-graphql-code-first/package.json b/sample/23-graphql-code-first/package.json
index bcf962a29..e90dade65 100644
--- a/sample/23-graphql-code-first/package.json
+++ b/sample/23-graphql-code-first/package.json
@@ -20,16 +20,16 @@
   },
   "dependencies": {
     "@apollo/server": "4.11.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
     "class-transformer": "0.5.1",
     "class-validator": "0.14.1",
-    "graphql": "16.8.1",
-    "graphql-query-complexity": "0.12.0",
-    "graphql-subscriptions": "2.0.0",
+    "graphql": "16.10.0",
+    "graphql-query-complexity": "1.0.0",
+    "graphql-subscriptions": "3.0.0",
     "reflect-metadata": "0.2.2",
     "rxjs": "7.8.1"
   },
@@ -39,8 +39,8 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
-    "@types/node": "22.10.6",
+    "@types/express": "5.0.0",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
     "eslint": "9.18.0",
     "eslint-plugin-prettier": "5.2.2",
diff --git a/sample/23-graphql-code-first/schema.gql b/sample/23-graphql-code-first/schema.gql
index 7a46060d1..5d883904b 100644
--- a/sample/23-graphql-code-first/schema.gql
+++ b/sample/23-graphql-code-first/schema.gql
@@ -4,7 +4,7 @@
 
 directive @upper on FIELD_DEFINITION
 
-"""recipe """
+"""recipe"""
 type Recipe {
   id: ID!
   description: String
diff --git a/sample/23-graphql-code-first/src/recipes/recipes.resolver.ts b/sample/23-graphql-code-first/src/recipes/recipes.resolver.ts
index c4ec6a20f..4634934cb 100644
--- a/sample/23-graphql-code-first/src/recipes/recipes.resolver.ts
+++ b/sample/23-graphql-code-first/src/recipes/recipes.resolver.ts
@@ -42,6 +42,6 @@ export class RecipesResolver {
 
   @Subscription(returns => Recipe)
   recipeAdded() {
-    return pubSub.asyncIterator('recipeAdded');
+    return pubSub.asyncIterableIterator('recipeAdded');
   }
 }
diff --git a/sample/31-graphql-federation-code-first/gateway/package.json b/sample/31-graphql-federation-code-first/gateway/package.json
index 6362c4ee9..8e3ae2b04 100644
--- a/sample/31-graphql-federation-code-first/gateway/package.json
+++ b/sample/31-graphql-federation-code-first/gateway/package.json
@@ -21,12 +21,12 @@
   "dependencies": {
     "@apollo/gateway": "2.9.3",
     "@apollo/server": "4.11.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -34,18 +34,18 @@
     "ts-morph": "25.0.0"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "3.2.0",
+    "@eslint/js": "9.18.0",
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
-    "@typescript-eslint/eslint-plugin": "5.62.0",
-    "@typescript-eslint/parser": "5.62.0",
     "eslint": "9.18.0",
-    "eslint-config-prettier": "10.0.1",
     "eslint-plugin-prettier": "5.2.2",
+    "globals": "15.14.0",
     "jest": "29.7.0",
     "prettier": "3.4.2",
     "supertest": "7.0.0",
@@ -54,6 +54,7 @@
     "ts-node": "10.9.2",
     "tsconfig-paths": "4.2.0",
     "typescript": "5.7.3",
+    "typescript-eslint": "8.20.0",
     "webpack": "5.97.1"
   },
   "jest": {
diff --git a/sample/31-graphql-federation-code-first/posts-application/package.json b/sample/31-graphql-federation-code-first/posts-application/package.json
index fabae1979..d9b28b195 100644
--- a/sample/31-graphql-federation-code-first/posts-application/package.json
+++ b/sample/31-graphql-federation-code-first/posts-application/package.json
@@ -23,12 +23,12 @@
     "@apollo/gateway": "2.9.3",
     "@apollo/server": "4.11.3",
     "@apollo/subgraph": "2.9.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -41,9 +41,9 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
diff --git a/sample/31-graphql-federation-code-first/posts-application/src/posts/posts.module.ts b/sample/31-graphql-federation-code-first/posts-application/src/posts/posts.module.ts
index a3048ea0a..da2bfd70b 100644
--- a/sample/31-graphql-federation-code-first/posts-application/src/posts/posts.module.ts
+++ b/sample/31-graphql-federation-code-first/posts-application/src/posts/posts.module.ts
@@ -1,3 +1,4 @@
+import { ApolloServerPluginInlineTrace } from '@apollo/server/plugin/inlineTrace';
 import {
   ApolloFederationDriver,
   ApolloFederationDriverConfig,
@@ -8,13 +9,14 @@ import { User } from './models/user.model';
 import { PostsResolver } from './posts.resolver';
 import { PostsService } from './posts.service';
 import { UsersResolver } from './users.resolver';
-import { ApolloServerPluginInlineTrace } from '@apollo/server/plugin/inlineTrace';
 
 @Module({
   imports: [
     GraphQLModule.forRoot<ApolloFederationDriverConfig>({
       driver: ApolloFederationDriver,
-      autoSchemaFile: true,
+      autoSchemaFile: {
+        federation: 2,
+      },
       plugins: [ApolloServerPluginInlineTrace()],
       buildSchemaOptions: {
         orphanedTypes: [User],
diff --git a/sample/31-graphql-federation-code-first/users-application/package.json b/sample/31-graphql-federation-code-first/users-application/package.json
index 1272ffb2d..a89658e2a 100644
--- a/sample/31-graphql-federation-code-first/users-application/package.json
+++ b/sample/31-graphql-federation-code-first/users-application/package.json
@@ -22,12 +22,12 @@
     "@apollo/gateway": "2.9.3",
     "@apollo/server": "4.11.3",
     "@apollo/subgraph": "2.9.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -40,9 +40,9 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
diff --git a/sample/31-graphql-federation-code-first/users-application/src/users/users.module.ts b/sample/31-graphql-federation-code-first/users-application/src/users/users.module.ts
index 10c7a3b33..be992a5e9 100644
--- a/sample/31-graphql-federation-code-first/users-application/src/users/users.module.ts
+++ b/sample/31-graphql-federation-code-first/users-application/src/users/users.module.ts
@@ -1,3 +1,4 @@
+import { ApolloServerPluginInlineTrace } from '@apollo/server/plugin/inlineTrace';
 import {
   ApolloFederationDriver,
   ApolloFederationDriverConfig,
@@ -6,14 +7,15 @@ import { Module } from '@nestjs/common';
 import { GraphQLModule } from '@nestjs/graphql';
 import { UsersResolver } from './users.resolver';
 import { UsersService } from './users.service';
-import { ApolloServerPluginInlineTrace } from '@apollo/server/plugin/inlineTrace';
 
 @Module({
   providers: [UsersResolver, UsersService],
   imports: [
     GraphQLModule.forRoot<ApolloFederationDriverConfig>({
       driver: ApolloFederationDriver,
-      autoSchemaFile: true,
+      autoSchemaFile: {
+        federation: 2,
+      },
       plugins: [ApolloServerPluginInlineTrace()],
     }),
   ],
diff --git a/sample/32-graphql-federation-schema-first/gateway/package.json b/sample/32-graphql-federation-schema-first/gateway/package.json
index 4e2337d80..4bc7d8322 100644
--- a/sample/32-graphql-federation-schema-first/gateway/package.json
+++ b/sample/32-graphql-federation-schema-first/gateway/package.json
@@ -22,13 +22,13 @@
   },
   "dependencies": {
     "@apollo/gateway": "2.9.3",
-    "@apollo/server": "^4.7.4",
-    "@nestjs/apollo": "12.2.2",
+    "@apollo/server": "^4.11.3",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -41,9 +41,9 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
diff --git a/sample/32-graphql-federation-schema-first/posts-application/package.json b/sample/32-graphql-federation-schema-first/posts-application/package.json
index 3afadde99..1c27b9371 100644
--- a/sample/32-graphql-federation-schema-first/posts-application/package.json
+++ b/sample/32-graphql-federation-schema-first/posts-application/package.json
@@ -22,14 +22,14 @@
   },
   "dependencies": {
     "@apollo/gateway": "2.9.3",
-    "@apollo/server": "^4.7.4",
+    "@apollo/server": "^4.11.3",
     "@apollo/subgraph": "2.9.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -42,9 +42,9 @@
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
diff --git a/sample/32-graphql-federation-schema-first/posts-application/src/posts/posts.graphql b/sample/32-graphql-federation-schema-first/posts-application/src/posts/posts.graphql
index d92dd1aff..b408faf64 100644
--- a/sample/32-graphql-federation-schema-first/posts-application/src/posts/posts.graphql
+++ b/sample/32-graphql-federation-schema-first/posts-application/src/posts/posts.graphql
@@ -13,4 +13,5 @@ extend type User @key(fields: "id") {
 
 extend type Query {
   getPosts: [Post]
+  findPost(id: ID!): Post
 }
diff --git a/sample/32-graphql-federation-schema-first/users-application/package.json b/sample/32-graphql-federation-schema-first/users-application/package.json
index 07b56a0c2..80a5b1d62 100644
--- a/sample/32-graphql-federation-schema-first/users-application/package.json
+++ b/sample/32-graphql-federation-schema-first/users-application/package.json
@@ -21,14 +21,14 @@
   },
   "dependencies": {
     "@apollo/gateway": "2.9.3",
-    "@apollo/server": "^4.7.4",
+    "@apollo/server": "^4.11.3",
     "@apollo/subgraph": "2.9.3",
-    "@nestjs/apollo": "12.2.2",
+    "@nestjs/apollo": "13.0.0",
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
     "@nestjs/platform-express": "11.0.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "graphql-tools": "9.0.11",
     "reflect-metadata": "0.2.2",
     "rimraf": "6.0.1",
@@ -36,15 +36,15 @@
     "ts-morph": "25.0.0"
   },
   "devDependencies": {
+    "@eslint/eslintrc": "3.2.0",
+    "@eslint/js": "9.18.0",
     "@nestjs/cli": "10.4.9",
     "@nestjs/schematics": "10.2.3",
     "@nestjs/testing": "11.0.1",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.14",
-    "@types/node": "22.10.6",
+    "@types/node": "22.10.7",
     "@types/supertest": "6.0.2",
-    "@typescript-eslint/eslint-plugin": "5.62.0",
-    "@typescript-eslint/parser": "5.62.0",
     "eslint": "9.18.0",
     "eslint-config-prettier": "10.0.1",
     "eslint-plugin-prettier": "5.2.2",
@@ -55,7 +55,8 @@
     "ts-loader": "9.5.2",
     "ts-node": "10.9.2",
     "tsconfig-paths": "4.2.0",
-    "typescript": "5.7.3"
+    "typescript": "5.7.3",
+    "typescript-eslint": "8.20.0"
   },
   "jest": {
     "moduleFileExtensions": [
diff --git a/sample/33-graphql-mercurius/package.json b/sample/33-graphql-mercurius/package.json
index 9ddec8524..f8caaf723 100644
--- a/sample/33-graphql-mercurius/package.json
+++ b/sample/33-graphql-mercurius/package.json
@@ -21,12 +21,12 @@
   "dependencies": {
     "@nestjs/common": "11.0.1",
     "@nestjs/core": "11.0.1",
-    "@nestjs/graphql": "12.2.2",
-    "@nestjs/mercurius": "12.2.2",
+    "@nestjs/graphql": "13.0.0",
+    "@nestjs/mercurius": "13.0.0",
     "@nestjs/platform-fastify": "11.0.1",
     "class-transformer": "0.5.1",
     "class-validator": "0.14.1",
-    "graphql": "16.8.1",
+    "graphql": "16.10.0",
     "mercurius": "16.0.1",
     "reflect-metadata": "0.2.2",
     "rxjs": "7.8.1"
diff --git a/sample/33-graphql-mercurius/schema.gql b/sample/33-graphql-mercurius/schema.gql
index e11c56434..bf7b8131c 100644
--- a/sample/33-graphql-mercurius/schema.gql
+++ b/sample/33-graphql-mercurius/schema.gql
@@ -16,7 +16,7 @@ scalar Date
 
 type Query {
   recipe(id: String!): Recipe!
-  recipes(skip: Int = 0, take: Int = 25): [Recipe!]!
+  recipes(skip: Int! = 0, take: Int! = 25): [Recipe!]!
 }
 
 type Mutation {