node.js - 如何从 cloudinary 访问上传功能之外的变量

Question

如何response.url在上传功能之外访问？

var cloudinaryUrl = null;
    if (req.files['imagefile']) {
        var imgUrl = req.files['imagefile'][0].path;
        cloudinary.uploader.upload(imgUrl, function (error, response) {
            cloudinaryUrl = response.url;
            console.log("cloudinaryURL>>", cloudinaryUrl); 
        });
        console.log("outside", cloudinaryUrl);
    }

函数外的输出upload为空。

标签： node.jscloudinary