Can't connect to Mongo DB

Question

I created a spring boot app with application.properties containing this:

spring.data.mongodb.uri=mongodb://localhost:27017/product-service

I also added a new connection in my MongoDB Compass with this URI: mongodb://localhost:27017/product-service

But for some reason, I get NPE when I try to get something from the repo.

I did a little bit of research and did the following steps to fix the issue, but I couldn't solve it:

1. I verified that MongoDB is running by accesing the URI
2. I made sure that I created a database with this name "product-service" in MongoDB Compass.
3. When I enable MongoDB logging I see nothing related to mongo.

Here are the logs when I try to get something from the repository:

java.lang.NullPointerException: null
    at com.emanuel.productservice.controller.ProductController.getAllProducts(ProductController.java:29) ~[main/:na]

Here is my controller:

@RestController
@RequestMapping("api/product")
@RequiredArgsConstructor
public class ProductController {

    private ProductService productService;

    @GetMapping
    @ResponseStatus(HttpStatus.OK)
    public List<ProductResponse> getAllProducts(){
        return productService.getAllProducts();
    }

}

Here is my service:

@Service
@RequiredArgsConstructor
@Slf4j
public class ProductService {

    private final ProductRepo productRepo;

    public List<ProductResponse> getAllProducts() {
        List<Product> products = productRepo.findAll(); // here is the line where I get NPE
        return products.stream().map(this::mapToProductResponse).collect(Collectors.toList());
    }
}

Here is my repository:

public interface ProductRepo extends MongoRepository<Product, String> {

}

I have MongoDB Community Server version 6.0.4 (current) & Spring Boot 2.7.8. This is the dependency that I use in Gradle:

implementation 'org.springframework.boot:spring-boot-starter-data-mongodb