fix(sample): sample 12 type generation fails due to wrong path

ts-morph package added
graphql.schema.ts update with generate-typings script

Author: Jakob Nielsen

…hql-schema-first/src/generate-typings.ts …graphql-schema-first/generate-typings.tssample/12-graphql-schema-first/src/generate-typings.ts renamed to sample/12-graphql-schema-first/generate-typings.ts sample/12-graphql-schema-first/src/generate-typings.ts renamed to sample/12-graphql-schema-first/generate-typings.ts

@@ -50,6 +50,7 @@
     "supertest": "6.1.6",
     "ts-jest": "27.0.7",
     "ts-loader": "9.2.6",
+    "ts-morph": "^12.2.0",
     "ts-node": "10.4.0",
     "tsconfig-paths": "3.11.0",
     "typescript": "4.4.2"

sample/12-graphql-schema-first/package-lock.json

@@ -1,39 +1,43 @@
-/** ------------------------------------------------------
+
+/*
+ * -------------------------------------------------------
  * THIS FILE WAS AUTOMATICALLY GENERATED (DO NOT MODIFY)
  * -------------------------------------------------------
  */
 
 /* tslint:disable */
 /* eslint-disable */
 export class CreateCatInput {
-  name?: string;
-  age?: number;
+    name?: Nullable<string>;
+    age?: Nullable<number>;
 }
 
 export abstract class IQuery {
-  abstract cats(): Cat[] | Promise<Cat[]>;
+    abstract cats(): Nullable<Nullable<Cat>[]> | Promise<Nullable<Nullable<Cat>[]>>;
 
-  abstract cat(id: string): Cat | Promise<Cat>;
+    abstract cat(id: string): Nullable<Cat> | Promise<Nullable<Cat>>;
 }
 
 export abstract class IMutation {
-  abstract createCat(createCatInput?: CreateCatInput): Cat | Promise<Cat>;
+    abstract createCat(createCatInput?: Nullable<CreateCatInput>): Nullable<Cat> | Promise<Nullable<Cat>>;
 }
 
 export abstract class ISubscription {
-  abstract catCreated(): Cat | Promise<Cat>;
+    abstract catCreated(): Nullable<Cat> | Promise<Nullable<Cat>>;
 }
 
 export class Owner {
-  id: number;
-  name: string;
-  age?: number;
-  cats?: Cat[];
+    id: number;
+    name: string;
+    age?: Nullable<number>;
+    cats?: Nullable<Cat[]>;
 }
 
 export class Cat {
-  id?: number;
-  name?: string;
-  age?: number;
-  owner?: Owner;
+    id?: Nullable<number>;
+    name?: Nullable<string>;
+    age?: Nullable<number>;
+    owner?: Nullable<Owner>;
 }
+
+type Nullable<T> = T | null;