package Ġm ash up . side project . order pay . controller Ċ Ċ import Ġm ash up . side project . order pay . model . dto . i amp ort . Callback Dto Ċ import Ġorg . springframework . web . bind . annotation . PostMapping Ċ import Ġorg . springframework . web . bind . annotation . RestController Ċ Ċ @ RestController Ċ class ĠCallback Controller Ġ{ ĊĊĠĠĠ Ġ@ PostMapping ("/ i amp ort / callback ") ĊĠĠĠ Ġfun Ġcallback ( callback Dto : ĠCallback Dto ) Ġ{ ĊĊĠĠĠ Ġ} Ċ }