ptb-be/middleware/isUnique.js

const response = require('../utils/responseHandler')

module.exports = (fromField, callback) => async(req, res, next) => {
  try {
    const data = await callback(fromField(req))
    if (data || data?.length) {
      return response.error(res, {
        message: `${fromField.toString().split('.').pop()} sudah ada`,
        code: 409
      })
    }
  } catch (e) {
    return response.error(res, {
      message: e.message,
      code: e.response.status || 500
    })
  }
  return next()
}