Mongodb collection created through Spring Boot API POST isn't displayed in 'mongosh' shell

Question

I've created a Spring Boot REST API to create and store Books. This API has a POST createBook() and a GET getAll() request. Both requests are working fine, using the method GET http:localhost:8080/books I can see the list of books that I created. The problem is that I needed to execute a query to replace all books with price null to 0, so I was trying to perform that query in 'mongosh'. In the 'mongosh' shell I used the database that I created for this API but there are no collections inside it.

Note: For now I am not using any authentication.

BookService.java:

@RestController
@RequestMapping("/books")
public class BookController {

    // Wire the controller to the "BookRepository" for data access
    @Autowired
    private BookRepository bookRepository;

    @Autowired
    private BookService bookService;

    @GetMapping
    public ResponseEntity<List<Book>> getAllBooks() {
        List<Book> books = bookRepository.findAll();
        return ResponseEntity.ok(books);
    }

    // Other methods bellow...

BookRepository.java:

public interface BookRepository extends MongoRepository<Book, String> { }

application.properties:

spring.data.mongodb.uri=mongodb://localhost:27017/book_app_db

POSTMAN request:

GET localhost:8080/books

Response:

[
    {
        "id": "65b95dc2ddb7f820a72bff76",
        "title": "title1",
        "author": "author1",
        "isbn": "9765453734",
        "category": null,
        "price": "1"
    },
    {
        "id": "65b95e9bddb7f820a72bff77",
        "title": "title2",
        "author": "author2",
        "isbn": "9765355634",
        "category": null,
        "price": null
    },
    {
        "id": "65b95fc2ddb7f820a72bff78",
        "title": "title3",
        "author": "author3",
        "isbn": "97653567834",
        "category": null,
        "price": null
    },
    ...
]

mongosh (mongo shell):

C:\Users\ASUS>mongosh
Current Mongosh Log ID: 65c3a4aea4c573e16eb447ec
Connecting to:          mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.1.3
Using MongoDB:          7.0.5
Using Mongosh:          2.1.3

For mongosh info see: https://docs.mongodb.com/mongodb-shell/


   The server generated these startup warnings when booting
   2024-02-03T16:26:40.694+00:00: Access control is not enabled for the database. Read and write access to data and configuration is unrestricted


test> show databases
admin           40.00 KiB
book_app_db      8.00 KiB
config         108.00 KiB
local           72.00 KiB
test_database   72.00 KiB
test> use book_app_db
switched to db book_app_db
book_app_db> show collections

book_app_db>

I tried to use 'show collections' to see the book collection. I expected to see the collection books containing the same documents returned in the GET request.

I also tried to create a new database from 'mongosh' to verify if I could insert documents manually and if the find() was working and it did - I was able to create a table, a collection and documents and then display them using the find().