capsulize

nest-start/src/app.controller.ts

@@ -1,12 +1,17 @@
 import { Body, Controller, Get } from "@nestjs/common";
 import { AppService } from "./app.service";
+import { CatsService } from "./cats/cats.service";
 
 @Controller("")
 export class AppController {
-  constructor(private readonly appService: AppService) {}
+  constructor(
+    private readonly appService: AppService,
+    private readonly catsService: CatsService,
+  ) {}
 
   @Get()
   getHello(): string {
-    return this.appService.getHello();
+    // return this.appService.getHello();
+    return this.catsService.hiCatServiceProduct();
   }
 }

nest-start/src/cats/cats.module.ts

@@ -5,5 +5,6 @@ import { CatsService } from "./cats.service";
 @Module({
   controllers: [CatsController],
   providers: [CatsService],
+  exports: [CatsService],
 })
 export class CatsModule {}

nest-start/src/cats/cats.service.ts

@@ -1,4 +1,8 @@
 import { Injectable } from "@nestjs/common";
 
 @Injectable()
-export class CatsService {}
+export class CatsService {
+  hiCatServiceProduct() {
+    return "hello cat!";
+  }
+}