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 import { HttpStatusCode } from '../../../shared/core-utils/miscs/http-error-codes'
   5
   6 function areValidationErrors (req: express.Request, res: express.Response) {
   7   const errors = validationResult(req)
   8
   9   if (!errors.isEmpty()) {
  10     logger.warn('Incorrect request parameters', { path: req.originalUrl, err: errors.mapped() })
  11     res.status(HttpStatusCode.BAD_REQUEST_400)
  12        .json({ errors: errors.mapped() })
  13
  14     return true
  15   }
  16
  17   return false
  18 }
  19
  20 function checkSort (sortableColumns: string[], tags: string[] = []) {
  21   return [
  22     query('sort').optional().isIn(sortableColumns).withMessage('Should have correct sortable column'),
  23
  24     (req: express.Request, res: express.Response, next: express.NextFunction) => {
  25       logger.debug('Checking sort parameters', { parameters: req.query, tags })
  26
  27       if (areValidationErrors(req, res)) return
  28
  29       return next()
  30     }
  31   ]
  32 }
  33
  34 function createSortableColumns (sortableColumns: string[]) {
  35   const sortableColumnDesc = sortableColumns.map(sortableColumn => '-' + sortableColumn)
  36
  37   return sortableColumns.concat(sortableColumnDesc)
  38 }
  39
  40 // ---------------------------------------------------------------------------
  41
  42 export {
  43   areValidationErrors,
  44   checkSort,
  45   createSortableColumns
  46 }