[英]Archive multiple files with Node and download it immediately
I'm trying to zip multiple files on a server and download it when user requests it.我正在尝试 zip 服务器上的多个文件,并在用户请求时下载它。 I am using adm-zip to zip files.
我正在对 zip 文件使用 adm-zip。
Files add perfectly fine and are zipped.文件添加得非常好并且被压缩。 zip.writeZip('') zipes files perfectly and saves them to local server.
zip.writeZip('') 完美压缩文件并将它们保存到本地服务器。 I am just unable to download them.
我只是无法下载它们。 Either way I think it would be better if I could send zip directly via buffer.
无论哪种方式,我认为如果我可以通过缓冲区直接发送 zip 会更好。
router.get(
"/download-zip/:season_id/:club_id",
passport.authenticate("jwt", { session: false }),
(req, res) => {
FileSubmission.find({
season: req.params.season_id,
club: req.params.club_id
}).then(files => {
const zip = new AdmZip();
files.forEach(file => {
// add local file
zip.addLocalFile(`uploads/club-uploads/${file.club}/${file.name}`);
});
res.download(zip.toBuffer(), "asd.zip");
});
}
);
On the front I am using react with actions and js-file-download library在前面,我正在使用对动作和 js-file-download 库做出反应
// Download ALL FILES by season ID and club ID
import fileDownload from "js-file-download";
export const downloadAllFiles = (season_id, club_id) => dispatch => {
axios
.get(`/api/files/download-zip/${season_id}/${club_id}`)
.then(response => {
fileDownload(response.data, `All Files- ${club_id}.zip`);
})
.catch(err => {
console.log(err);
dispatch({ type: GET_ERRORS, payload: err.response.data });
});
};
Ok, don't know why I got downvoted, but here's the answer on how I managed to create temporary archive, download it and delete it.好的,不知道为什么我被否决了,但这是我如何设法创建临时存档、下载并删除它的答案。
Here's back-end这里是后端
// Create a ZIP of files uploaded by a club
router.get(
"/download-zip/",
(req, res) => {
zip.addLocalFile(/*ADD THE FILES TO ZIP*/);
zip.writeZip(
`temp/zips/temp-file.zip`,
err => {
if (err) {
console.log(err);
}
res.download(
`uploads/club-zips/test-file.zip`,
function(err) {
if (!err) {
//delete file after it's been downloaded
fs.unlinkSync(
`uploads/club-zips/test-file-${req.params.club_id}.zip`
);
}
}
);
}
);
});
}
);
Here's what I use on front.这是我在前面使用的。 As I said I used package called js-file-download to download blobs
正如我所说,我使用名为 js-file-download 的 package 来下载 blob
export const downloadAllFiles = () => dispatch => {
axios
.get(`/api/files/download-zip/`, {
responseType: "arraybuffer"
})
.then(response => {
fileDownload(response.data, `all-files.zip`);
})
.catch(err => {
console.log(err);
});
};
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