Fix requested changes on health check api

apps/backend/src/app.controller.ts

@@ -1,9 +1,17 @@
 import { Controller, Get } from '@nestjs/common';
 
+import { AppService } from './app.service';
+
 @Controller()
 export class AppController {
+  constructor(private readonly appService: AppService) {}
+
+  @Get()
+  getHello(): string {
+    return this.appService.getHello();
+  }
   @Get('/health')
   getHealth(): string {
-    return 'Service is up and running';
+    return this.appService.getHealth();
   }
 }

apps/backend/src/app.module.ts

@@ -2,9 +2,11 @@ import { Module } from '@nestjs/common';
 import { PrismaModule } from 'nestjs-prisma';
 
 import { AppController } from './app.controller';
+import { AppService } from './app.service';
 
 @Module({
   imports: [PrismaModule.forRoot({ isGlobal: true })],
   controllers: [AppController],
+  providers: [AppService],
 })
 export class AppModule {}

apps/backend/src/app.service.ts

@@ -0,0 +1,12 @@
+import { Injectable } from '@nestjs/common';
+
+@Injectable()
+export class AppService {
+  getHello(): string {
+    return 'Hello World!';
+  }
+
+  getHealth(): string {
+    return 'Service is up and running';
+  }
+}