TOAST UI Grid Pagination Using Callbacks

https://github.com/nhn/tui.grid/blob/master/packages/toast-ui.grid/docs/en/data-source.md

Using Callbacks

grid.on('beforeRequest', function(data) {
  // Before sending the request
}).on('response', function(data) {
  // When a response has been received regardless of success.
  const response = data.xhr.response;
  const responseObj = JSON.parse(response);
  if (responseObj.result) {
      ...
  }
}).on('successResponse', function(data) {
  // When the result is set to true
}).on('failResponse', function(data) {
  // When the result is set to false
}).on('errorResponse', function(data) {
  // When an error occurs
});