file upload backup api to backup file on aws s3 in nodejs

Question

我想创建一个API，它将从用户获取文件或文件夹路径并将其上传到AWS s3我取得了进展，但是

当用户给出一个文件路径时，它在服务器中搜索文件路径，而不是在用户的pc中搜索

我知道我犯了一个错误，但我不知道如何从用户的pc连接API并访问系统文件

这里是post路由的代码

router.post("/create/:id", auth, async (req, res) => {
try {
let form = new multiparty.Form();
form.parse(req, async (err, fields, files) => {
console.log(fields);
console.log(files);
//check if user has access to project
const user_id = req.userId;
const project_id = req.params.id;
const user_access = await check_user_access_project(user_id, project_id);
const user = await User.findById(user_id);
const project = await Project.findById(project_id);
if (user_access === 1) {
//create version
const version = new Version({
project_id: project_id,
user_id: user_id,
versionName: fields.versionName[0],
version_description: fields.versionDescription[0],
version_file: [],
});
const version_data = await version.save();
console.log(version_data);
let version_id = version_data._id;
//sync folders to s3
const version_folder_path = fields.files_path[0];
let key = `${user.firstName}_${user_id}/${project.projectName}/${fields.versionName[0]}`;
const version_folder_list = await sync_folders(
version_folder_path,
key
);
console.log("version folder list", version_folder_list);
//update version with version folders
await Version.findByIdAndUpdate(
version_id,
{
$set: {
version_file: version_folder_list,
},
},
{ new: true }
);
//wait for version update
await version.save();
//send response
res.json({
success: true,
version: version_data,
});
} else {
res.status(401).json({
success: false,
message: "User does not have access to project",
});
}
});
} catch (error) {
res.status(400).json({ message: error.message });
}
});

文件夹同步代码

const sync_folders = async (folder_path, key) => {
function getFiles(dir, files_) {
files_ = files_ || [];
var files = fs.readdirSync(dir);
for (var i in files) {
var name = dir + "/" + files[i];
if (fs.statSync(name).isDirectory()) {
getFiles(name, files_);
} else {
files_.push(name);
}
}
return files_;
}
const files = getFiles(folder_path);
console.log(files);
const fileData = [];
for (let i = 0; i < files.length; i++) {
const file = files[i];
console.log(file);
const fileName = file.split("/").pop();
const fileType = file.split(".").pop();
const fileSize = fs.statSync(file).size;
const filePath = file;
const fileBuffer = fs.readFileSync(filePath);
//folder is last part of folder path (e.g. /folder1/folder2/folder3)
const folder = folder_path.split("/").pop();
console.log("folder: " + folder);
//split filepath
const filePath_ = filePath.split(folder).pop();
let filekey = key + "/" + folder + filePath_;
console.log("filekey: " + filekey);
const params = {
Bucket: bucket,
Key: filekey,
Body: fileBuffer,
ContentType: fileType,
ContentLength: fileSize,
};
const data = await s3.upload(params).promise();
console.log(data);
fileData.push(data);
}
console.log("file data", fileData);
console.log("files uploaded");
return fileData;
};

如果有朋友可以帮助我，我需要你的帮助

Answer 1

您需要在表单中发布项目，而不仅仅是将用户的目录路径放入，然后将结果上传到s3桶。

如果你是新手，这可能是一个好的开始:

https://www.w3schools.com/nodejs/nodejs_uploadfiles.asp