@RestController: Spring’s annotation to signal that this class doesn’t process templates but instead that all outputs are directly serialized to the HTML response

EmployeeRepository: We are injecting the repository we defined earlier in this section through constructor injection

@GetMapping: Maps HTTP GET /api/employees calls to this method

Flux: Indicates that this returns one (or more) Employee records

repository.findAll(): By using the prebuilt findAll method from Spring Data Commons’ ReactiveCrudRepository interface, we already have a method that will fetch all the data