sample(graphql) update graphql sample (add validation)

Author: kamilmysliwiec

sample/12-graphql-apollo/package-lock.json

@@ -11,11 +11,12 @@
   "dependencies": {
     "@nestjs/common": "^5.3.6",
     "@nestjs/core": "^5.3.6",
-    "@nestjs/graphql": "^5.2.0",
+    "@nestjs/graphql": "^5.3.0",
     "apollo-server-express": "2.0.4",
+    "class-transformer": "^0.1.9",
+    "class-validator": "^0.9.1",
     "graphql": "0.13.2",
     "graphql-subscriptions": "0.5.8",
-    "graphql-type-json": "0.2.1",
     "reflect-metadata": "0.1.12",
     "rxjs": "6.3.1",
     "typescript": "3.0.3"

sample/12-graphql-apollo/package.json

@@ -10,7 +10,7 @@ import { CatsModule } from './cats/cats.module';
       typePaths: ['./**/*.graphql'],
       installSubscriptionHandlers: true,
       definitions: {
-        path: join(process.cwd(), 'src/graphql.schema.d.ts'),
+        path: join(process.cwd(), 'src/graphql.schema.ts'),
         outputAs: 'class',
       },
     }),

sample/12-graphql-apollo/src/app.module.ts

@@ -4,7 +4,7 @@ type Query {
 }
 
 type Mutation {
-  createCat(name: String): Cat
+  createCat(createCatInput: CreateCatInput): Cat
 }
 
 type Subscription {
@@ -16,3 +16,8 @@ type Cat {
   name: String
   age: Int
 }
+
+input CreateCatInput {
+  name: String
+  age: Int
+}

sample/12-graphql-apollo/src/cats/cats.graphql

@@ -1,9 +1,10 @@
 import { ParseIntPipe, UseGuards } from '@nestjs/common';
 import { Args, Mutation, Query, Resolver, Subscription } from '@nestjs/graphql';
 import { PubSub } from 'graphql-subscriptions';
+import { Cat } from '../graphql.schema';
 import { CatsGuard } from './cats.guard';
 import { CatsService } from './cats.service';
-import { Cat } from './interfaces/cat.interface';
+import { CreateCatDto } from './dto/create-cat.dto';
 
 const pubSub = new PubSub();
 
@@ -26,7 +27,7 @@ export class CatsResolvers {
   }
 
   @Mutation('createCat')
-  async create(@Args() args: Cat): Promise<Cat> {
+  async create(@Args('createCatInput') args: CreateCatDto): Promise<Cat> {
     const createdCat = await this.catsService.create(args);
     pubSub.publish('catCreated', { catCreated: createdCat });
     return createdCat;

sample/12-graphql-apollo/src/cats/cats.resolvers.ts

@@ -1,5 +1,5 @@
 import { Injectable } from '@nestjs/common';
-import { Cat } from './interfaces/cat.interface';
+import { Cat } from '../graphql.schema';
 
 @Injectable()
 export class CatsService {

sample/12-graphql-apollo/src/cats/cats.service.ts

@@ -0,0 +1,7 @@
+import { Min } from 'class-validator';
+import { CreateCatInput } from '../../graphql.schema';
+
+export class CreateCatDto extends CreateCatInput {
+  @Min(1)
+  age: number;
+}

sample/12-graphql-apollo/src/cats/dto/create-cat.dto.ts

@@ -0,0 +1,26 @@
+export class CreateCatInput {
+    name?: string;
+    age?: number;
+}
+
+export class Cat {
+    id?: number;
+    name?: string;
+    age?: number;
+}
+
+export abstract class IMutation {
+    abstract createCat(createCatInput?: CreateCatInput): Cat | Promise<Cat>;
+}
+
+export abstract class IQuery {
+    abstract getCats(): Cat[] | Promise<Cat[]>;
+
+    abstract cat(id: string): Cat | Promise<Cat>;
+
+    abstract temp__(): boolean | Promise<boolean>;
+}
+
+export abstract class ISubscription {
+    abstract catCreated(): Cat | Promise<Cat>;
+}