server/helpers/utils.ts

   1 import * as express from 'express'
   2
   3 import { pseudoRandomBytes } from 'crypto'
   4
   5 import { logger } from './logger'
   6
   7 function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
   8   res.type('json').status(400).end()
   9 }
  10
  11 function generateRandomString (size: number, callback: (err: Error, randomString?: string) => void) {
  12   pseudoRandomBytes(size, function (err, raw) {
  13     if (err) return callback(err)
  14
  15     callback(null, raw.toString('hex'))
  16   })
  17 }
  18
  19 function createEmptyCallback () {
  20   return function (err) {
  21     if (err) logger.error('Error in empty callback.', { error: err })
  22   }
  23 }
  24
  25 function getFormatedObjects (objects: any[], objectsTotal: number) {
  26   const formatedObjects = []
  27
  28   objects.forEach(function (object) {
  29     formatedObjects.push(object.toFormatedJSON())
  30   })
  31
  32   return {
  33     total: objectsTotal,
  34     data: formatedObjects
  35   }
  36 }
  37
  38 // ---------------------------------------------------------------------------
  39
  40 export {
  41   badRequest,
  42   createEmptyCallback,
  43   generateRandomString,
  44   getFormatedObjects
  45 }