Callback to Promise

callbackToPromise.js

import {someApi} from "someApi"

const somePromiseFct = (params) => {
  return new Promise((resolve, reject) => {
    //... ex. callbackFct는 callback으로 data를 준다고 합니다
    someApi.callbackFct(params, (data, error) => {
       //... data를 처리
       if (error) return reject(error);
       resolve(data);
    })
}