@shko.online/dataverse-odata/lib/esm/getOrderByFromParser.js

This package will help parse OData strings (only the Microsoft Dataverse subset). It can be used as a validator, or you can build some javascript library which consumes the output of this library.

import { atMostOnce } from './validators/atMostOnce';
import { hasContent } from './validators/hasContent';
const option = '$orderby';
const edmProperty = /\w{1-255}/gi;

/**
 * Parses the {@link ODataOrderBy.$orderby $orderby} query
 * @returns Returns `false` when the parse has an error
 */
export const getOrderByFromParser = (parser, result) => {
  let value = parser.getAll(option);
  if (value.length === 0) {
    return true;
  }
  if (!atMostOnce(option, value, result) || !hasContent(option, value, result)) {
    return false;
  }
  let $orderby = value[0].trimEnd();
  const orderByArray = [];
  for (let i = 0; i < $orderby.length; i++) {
    if (false /* syntax error */) {
      result.error = {
        code: '0x0',
        message: `Syntax error at position ${i} in '${$orderby}'.`
      };
      return false;
    }
  }
  orderByArray.forEach(orderBy => {
    if (!orderBy.column?.match(edmProperty)) {
      result.error = {
        code: '0x80060888',
        message: 'Order By Property must be of type EdmProperty'
      };
      return false;
    }
  });
  result.$orderby = orderByArray;
  return true;
};