server/middlewares/validators/utils.ts

   1 import * as express from 'express'
   2 import { query, validationResult } from 'express-validator'
   3 import { logger } from '../../helpers/logger'
   4
   5 function areValidationErrors (req: express.Request, res: express.Response) {
   6   const errors = validationResult(req)
   7
   8   if (!errors.isEmpty()) {
   9     logger.warn('Incorrect request parameters', { path: req.originalUrl, err: errors.mapped() })
  10     res.status(400).json({ errors: errors.mapped() })
  11
  12     return true
  13   }
  14
  15   return false
  16 }
  17
  18 function checkSort (sortableColumns: string[]) {
  19   return [
  20     query('sort').optional().isIn(sortableColumns).withMessage('Should have correct sortable column'),
  21
  22     (req: express.Request, res: express.Response, next: express.NextFunction) => {
  23       logger.debug('Checking sort parameters', { parameters: req.query })
  24
  25       if (areValidationErrors(req, res)) return
  26
  27       return next()
  28     }
  29   ]
  30 }
  31
  32 function createSortableColumns (sortableColumns: string[]) {
  33   const sortableColumnDesc = sortableColumns.map(sortableColumn => '-' + sortableColumn)
  34
  35   return sortableColumns.concat(sortableColumnDesc)
  36 }
  37
  38 // ---------------------------------------------------------------------------
  39
  40 export {
  41   areValidationErrors,
  42   checkSort,
  43   createSortableColumns
  44 }