public ActionResult <bool> IfISBNExists([FromRoute] string isbn) { if (!ModelState.IsValid) { return(BadRequest(ModelState)); } return(_bookService.IfISBNExists(isbn)); }
public ActionResult <bool> IfISBNExists([FromRoute] string isbn) { if (!ModelState.IsValid) { return(BadRequest(ModelState)); } return(_bookService.IfISBNExists(isbn)); }