debug nestjs node js backend service

prerequisites

before you start, ensure you have the following installed:

- nestjs cli
- a code editor (like visual studio code)

step 1: setting up a nestjs project

if you don't have a nestjs project set up yet, you can create a new one using the nest cli.

```bash
npm i -g @nestjs/cli
nest new my-nest-app
cd my-nest-app
npm run start:dev
```

step 2: adding a sample service and controller

for demonstration purposes, let's create a simple service and a controller.

create a service

```bash
nest generate service sample
```

```typescript

@injectable()
export class sampleservice {
gethello(): string {
// intentional error for debugging
const greeting: string = 'hello world!';
return greeting;
}
}
```

create a controller

```bash
nest generate controller sample
```

edit the controller:

```typescript

@controller('sample')
export class samplecontroller {
constructor(private readonly sampleservice: sampleservice) {}

@get()
gethello(): string {
}
}
```

step 3: using console logging

step 4: using ...

#NestJS #NodeJS #windows
in backend system
backend in python
backend in web development
in backend developer
backend in next js
in backend meaning
backend in java
backend in c++
in backend
in backend which language is used
in debug mode
in debug console
debugging in java
debugging in python
debugging in programming
debugging in c
debugging in software engineering
debugger in javascript