InvoiceController.java

@RestController
@RequestMapping("/{tenantId}/invoice")
public class InvoiceController {
    
    @Autowired
    private InvoiceRepository invoiceRepository;

    @RequestMapping(method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
    public List<Invoice> invoices() {
       return Lists.newArrayList(invoiceRepository.findAll());
    }

}