我正在尝试使用multer-s3将图像上传到AWS S3。一切正常(即上传视频,图像和文件),但它不完整。我不知道如何跟踪上传的进度或百分比。
我的multer代码被视为像这样的中间件
const multer = require('multer');
const AWS = require('aws-sdk');
const multerS3 = require('multer-s3');
var s3 = new AWS.S3();
const s3Storage = multerS3({
s3 : s3,
bucket : 'app-bucket',
acl : 'public-read',
key : function (req, file, callback) {
callback(null, file.originalname);
}
});
module.exports.s3Upload = multer({ storage: s3Storage });
然后我会将中间件附加到我的路线上:
router.route('/image/upload').get(uploadController.getUploadImageController)
.post(middleware.s3Upload.single('myImage'),
uploadController.postUploadPhotoToAlbumController );
然后在我的控制器上,是一个简单的发布请求,它将保存数据库的路径:
module.exports.postUploadPhotoToAlbumController = (req, res) => {
let query = Images.findById({ _id: req.params.id });
query.exec((err, images) => {
if(err){
return res.status(500).send({success: false, error: err, message: 'Something went wrong.'});
} if(!images){
return res.status(200).send({success: false, message: 'That image does not exist to your album.'});
}
images.image = !!req.file ? AwsS3PublicURL.setAwsPublicUrlSingle(req) : null;
images.save(err => {
if(err){
return res.status(500).send({success:false, error: err, message: 'Something went wrong.'});
}
req.flash('message', 'Your image was successfully uploaded.');
res.redirect('/album/photos');
});
});
}
AwsS3PublicURL.setAwsPublicUrlSingle是我的一条路径 AmazonS3Bucket将公开发布。
我的问题是我不知道如何正确跟踪上传的进度或进度百分比,并在前端或控制台中显示。如果有人知道答案,请提前感谢您。