Node.js Cloudinary多重上载中的作用域问题

我有一个上传多个文件到cloudinary的路径，如果上传循环中的I console.log（assetUpload）数组显示上传图片的url。但当我将URL作为响应发送回客户端时，数组是空的。我认为这是某种范围问题

router.route('/update/')
  .post(
    multiUpload
    ,
    async(req, res)=> {
    try {
      // console.log(req.body);
      var assetUploaded = [];
      let {signature, companyLogo, profilePicture} = req.files;
      let assets = [signature, companyLogo,profilePicture ];
      // console.log(assets[0])
      await assets.forEach ((asset) => {
        cloudinary.v2.uploader.upload(
          asset[0].path, (error, result) => {
            error ? res.status(400).json({message :error.message}) :
            // assetUploaded.push(result.secure_url)
            assetUploaded.push(
              {
              name:asset[0].fieldname,
              url: result.secure_url
            }
            )
            console.log(assetUploaded)
          }
        )
      })
      res.status(200).json({
        message : `user updated successfully`,
        urls : assetUploaded
    })
    } catch (err) {
      // console.log(err)
      res.status(400).json({message: 'Error occured ' +err.message})
    }
  })