typeorm-paginator/src/utils/normalizeOrderBy.ts

TypeORM query builder pagination library.

import { OrderBy } from '../interfaces/paginator'

export function normalizeOrderBy<TEntity, TColumnNames extends Record<string, string>>(
  orderBy: OrderBy<TEntity & TColumnNames> | OrderBy<TEntity & TColumnNames>[]
): [string, boolean][] {
  const orders = [] as [string, boolean][]
  for (const order of Array.isArray(orderBy) ? orderBy : [orderBy]) {
    for (const [key, value] of Object.entries(order)) {
      orders.push([key, value as boolean])
    }
  }
  return orders
}