Merge pull request nestjs#342 from leokraken/fix/graphqlexample

[Fix] Graphql example

Author: kamilmysliwiec

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

@@ -17,31 +17,13 @@ export class CatsResolvers {
   }
 
   @Query('cat')
-  async findOneById(id: number) {
-    return await this.catsService.findOneById(id);
+  async findOneById(obj, args, context, info): Promise<Cat> {
+    const { id } = args;
+    return await this.catsService.findOneById(+id);
   }
 
   @Mutation('createCat')
-  async create(cat: Cat) {
-    await this.catsService.create(cat);
-  }
-
-  @DelegateProperty('human')
-  findHumansById() {
-    return (mergeInfo: MergeInfo) => ({
-      fragment: `fragment CatFragment on Cat { humanId }`,
-      resolve(parent, args, context, info) {
-        const humanId = parent.id;
-        return mergeInfo.delegate(
-          'query',
-          'humanById',
-          {
-            id: humanId,
-          },
-          context,
-          info,
-        );
-      },
-    });
+  async create(obj, args: Cat, context, info): Promise<Cat> {
+    return await this.catsService.create(args);
   }
 }

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

@@ -5,8 +5,9 @@ import { Cat } from './interfaces/cat.interface';
 export class CatsService {
   private readonly cats: Cat[] = [{ id: 1, name: 'Cat', age: 5 }];
 
-  create(cat: Cat) {
+  create(cat: Cat): Cat{
     this.cats.push(cat);
+    return cat;
   }
 
   findAll(): Cat[] {

examples/12-graphql-apollo/src/cats/cats.types.graphql

@@ -13,4 +13,4 @@ type Cat {
   name: String
   age: Int
   humanId: Int
-}
+}