同时上传多张图片损坏

Question

尝试使用busboy上传多个文件，该文件可能很大。因此，我正在异步上传，我正在使用file.on('data')

当我以一定的延迟（> 3s）连续请求API时，该功能运行良好，如果我连续（无延迟）/并行/并行地请求API，则某些图像丢失或损坏。

app.post('/upload', function (req, res) {
    var busboy = new Busboy({ headers: req.headers });
    busboy.on('file', function (fieldname, file, filename, encoding, mimetype) {
        var writeStream = [];
        writeStream[fieldname] = fs.createWriteStream('./tmp/tmp' + Date.now());
        console.log('File [' + fieldname + ']: filename: ' + filename + ', encoding: ' + encoding + ', mimetype: ' + mimetype);
        file.on('data', function (data) {
            console.log('File [' + fieldname + '] got ' + data.length + ' bytes');
            writeStream[fieldname].write(data);
        });
        file.on('end', function () {
            console.log('File [' + fieldname + '] Finished');
            writeStream[fieldname].end();
        });
    });
    busboy.on('finish', function () {
        console.log('Upload complete');
        res.writeHead(200, { 'Connection': 'close' });
        res.end("That's all folks!");
    });
    return req.pipe(busboy);
});