server/helpers/utils.ts

   1 import * as express from 'express'
   2
   3 import { pseudoRandomBytes } from 'crypto'
   4 import { join } from 'path'
   5
   6 import { logger } from './logger'
   7
   8 function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
   9   res.type('json').status(400).end()
  10 }
  11
  12 function generateRandomString (size: number, callback: (err: Error, randomString?: string) => void) {
  13   pseudoRandomBytes(size, function (err, raw) {
  14     if (err) return callback(err)
  15
  16     callback(null, raw.toString('hex'))
  17   })
  18 }
  19
  20 function createEmptyCallback () {
  21   return function (err) {
  22     if (err) logger.error('Error in empty callback.', { error: err })
  23   }
  24 }
  25
  26 function isTestInstance () {
  27   return process.env.NODE_ENV === 'test'
  28 }
  29
  30 function getFormatedObjects (objects: any[], objectsTotal: number) {
  31   const formatedObjects = []
  32
  33   objects.forEach(function (object) {
  34     formatedObjects.push(object.toFormatedJSON())
  35   })
  36
  37   return {
  38     total: objectsTotal,
  39     data: formatedObjects
  40   }
  41 }
  42
  43 function root () {
  44   // We are in /dist/helpers/utils.js
  45   return join(__dirname, '..', '..', '..')
  46 }
  47
  48 // ---------------------------------------------------------------------------
  49
  50 export {
  51   badRequest,
  52   createEmptyCallback,
  53   generateRandomString,
  54   isTestInstance,
  55   getFormatedObjects,
  56   root
  57 }