Question

我陷入了这段代码，我有一个将文件上传到Google云端硬盘的功能。效果很好！但是我想在文件上传完成后执行附加功能。我尝试使用.then和新的Promise，但不起作用

有我的代码（功能）：

var { google } = require("googleapis");
var drive = google.drive("v3");
var key = require("./private_key.json");
var path = require("path");
var fs = require("fs");

controller.uploadImage = (req, res) => {

var file_uploaded_to_drive = false;

var jwToken = new google.auth.JWT(
    key.client_email,
    null,
    key.private_key, ["https://www.googleapis.com/auth/drive"],
    null
);

jwToken.authorize((authErr) => {
    if (authErr) {
        console.log("error : " + authErr);
        return;
    } else {
        console.log("Authorization accorded");
    }
});

var file_name = 'Imagen No Subida....';

if (req.files) {
    var filePath = req.files.file.path;
    var fileSplit = filePath.split('\\');
    var fileName = fileSplit[2];
    var extSplit = fileName.split('\.');
    var fileExt = extSplit[1];

    if (fileExt == 'png' || fileExt == 'jpg' || fileExt == 'rar' || fileExt == 'mp3' || fileExt == 'mp4' || fileExt == 'wmv') {
        var folderId = "1HMTg8nv-FMf0N4BqNChF3LEW6EibK4FG";
        var fileMetadata = {
            'name': req.files.file.name,
            parents: [folderId]
        };
        var media = {
            mimeType: 'application/octet-stream',
            body: fs.createReadStream('../uploads/' + fileName)
        };
        drive.files.create({
            auth: jwToken,
            resource: fileMetadata,
            media: media,
            fields: 'id'
        }, function(err, file) {
            if (err) {
                console.error(err);
            } else {
                console.log('File Id: ', file.data.id);
                // ---- HERE THE FILE IS UPLOADED I THINK----
                return res.status(200).send({
                    files: req.files,
                    "codigo": file.data.id,
                });
                //AFTER THE UPLOAD I WANT TO EXECUTE SOMETHING LIKE THIS 
                // .then({
                //     console.log( 'Upload Complete')
                // });
            }
        });
    } else {
        fs.unlink(filePath, (err) => {
            return res.status(200).send({ message: 'La extensión no es valida' });
        });
    }
} else {
    return res.status(200).send({
        message: 'File doesn't uploaded'
    });
}
}

如果我将控制台放在代码的底部，则首先执行此操作，然后执行上载。有什么建议吗？

完成上传功能后如何执行此功能

0 个答案: