import crypto from 'crypto'; import path from 'path'; export function getFilename(req, file, cb) { crypto.pseudoRandomBytes(16, function (err, raw) { cb(err, err ? undefined : `${raw.toString('hex')}${path.extname(file.originalname)}`) }); } export const cloudFilenameGetter = storage => (req, file, cb) => { getFilename(req, file, (err, filename) => { if (err) { return cb(err); } cb(null, `${storage.path ? `${storage.path}/` : ''}${filename}`); }); }