old_contents: 'use strict';
  
  const fs     = require('fs');
  const path   = require('path');
  const mkdirp = require('mkdirp');
  const async  = require('async');
  
  module.exports = function(params) {
    const file            = params.file;
    const files           = params.files;
    const parentDirectory = params.parentDirectory
    const dirname         = params.dirname;
    const rootPath        = path.resolve(__dirname).split('/node_modules')[0];
    var filesInformations = [];
  
    return new Promise((resolve, reject) => {
  
      if (files) {
        const filesUploaded = files.filter(file => file.originalFilename !== '');
  
        async.each(filesUploaded, saveFile, err => {
          if (err) {
            console.error(error)
            reject(err);
          }
          else {
            resolve(filesInformations);
          }
        });
      }
      else {
        saveFile(file, () => {
          resolve(filesInformations[0]);
        });
      }
    });
  
    function saveFile(file, cb) {
      const filePath     = file.path;
      const ext          = path.extname(file.originalFilename);
      const fileName     = `${file.fieldName}-${Date.now()}${ext}`;
      const dirPath      = path.join(rootPath, `uploads/${parentDirectory}/${dirname}`);
      const fileDestPath = path.join(rootPath, `uploads/${parentDirectory}/${dirname}/${fileName}`);
  
      mkdirp(dirPath, err => {
        if (err) {
          console.error(err);
        }
        else {
          const stream$ = fs.createReadStream(filePath).pipe(fs.createWriteStream(fileDestPath));
  
          stream$.on('finish', () => {
            filesInformations.push({
              fileName,
              path: fileDestPath,
            });
            cb();
          });
        }
      });
    }
  
  };
  
  
  
new_contents: 'use strict';
  
  const fs     = require('fs');
  const path   = require('path');
  const mkdirp = require('mkdirp');
  const async  = require('async');
  
  module.exports = function(params) {
    const file            = params.file;
    const files           = params.files;
    const parentDirectory = params.parentDirectory
    const dirname         = params.dirname;
    const rootPath        = process.cwd();
    var filesInformations = [];
  
    return new Promise((resolve, reject) => {
  
      if (files) {
        const filesUploaded = files.filter(file => file.originalFilename !== '');
  
        async.each(filesUploaded, saveFile, err => {
          if (err) {
            console.error(error)
            reject(err);
          }
          else {
            resolve(filesInformations);
          }
        });
      }
      else {
        saveFile(file, () => {
          resolve(filesInformations[0]);
        });
      }
    });
  
    function saveFile(file, cb) {
      const filePath     = file.path;
      const ext          = path.extname(file.originalFilename);
      const fileName     = `${file.fieldName}-${Date.now()}${ext}`;
      const dirPath      = path.join(rootPath, `uploads/${parentDirectory}/${dirname}`);
      const fileDestPath = path.join(rootPath, `uploads/${parentDirectory}/${dirname}/${fileName}`);
  
      mkdirp(dirPath, err => {
        if (err) {
          console.error(err);
        }
        else {
          const stream$ = fs.createReadStream(filePath).pipe(fs.createWriteStream(fileDestPath));
  
          stream$.on('finish', () => {
            filesInformations.push({
              fileName,
              path: fileDestPath,
            });
            cb();
          });
        }
      });
    }
  
  };
  
  
  
subject: Fix root path