server/middlewares/validators/pagination.ts

   1 import * as express from 'express'
   2 import { query } from 'express-validator'
   3 import { logger } from '../../helpers/logger'
   4 import { areValidationErrors } from './utils'
   5 import { PAGINATION } from '@server/initializers/constants'
   6
   7 const paginationValidator = paginationValidatorBuilder()
   8
   9 function paginationValidatorBuilder (tags: string[] = []) {
  10   return [
  11     query('start')
  12       .optional()
  13       .isInt({ min: 0 }).withMessage('Should have a number start'),
  14     query('count')
  15       .optional()
  16       .isInt({ min: 0, max: PAGINATION.GLOBAL.COUNT.MAX }).withMessage(`Should have a number count (max: ${PAGINATION.GLOBAL.COUNT.MAX})`),
  17
  18     (req: express.Request, res: express.Response, next: express.NextFunction) => {
  19       logger.debug('Checking pagination parameters', { parameters: req.query, tags })
  20
  21       if (areValidationErrors(req, res)) return
  22
  23       return next()
  24     }
  25   ]
  26 }
  27
  28 // ---------------------------------------------------------------------------
  29
  30 export {
  31   paginationValidator,
  32   paginationValidatorBuilder
  33 }