Hands-On Microservices with Kotlin

Answering an UPDATE request

Much like the DELETE request, when we update a customer, we should take care if the resource exists, and again we will not need to return anybody for this request; however, if we modified the resource, we should return a 202 ACCEPTED.

Let's modify the update method:

@PutMapping(value = "/customer/{id}")fun updateCustomer(@PathVariable id: Int, @RequestBody customer: Customer): ResponseEntity<Unit> {  var status = HttpStatus.NOT_FOUND  if (customerService.getCustomer(id) != null) {    customerService.updateCustomer(id, customer)    status = HttpStatus.ACCEPTED  }  return ResponseEntity(Unit, status)}

With this method, we have to complete our status responses, but there is one thing more that we could clear up.