The goal is to receive an archive form the client, add a file, and upload it to Cloud Storage without creating a temporary file. The client and the server both use the archiver
library. The problem with the code below is that file2.txt
does not get added to the archive.
Client:
import archiver from "archiver";
const archive = archiver("zip", {
zlib: { level: 9 },
});
archive.append("string cheese!", { name: "file1.txt" });
await fetch(`/archive`, {
method: "POST",
body: archive,
});
Server:
import archiver from "archiver";
import { Storage } from "@google-cloud/storage";
import { Router } from "express";
const router = Router();
const storage = new Storage();
router.post("/", (req, res) => {
const archive = archiver("zip", {
zlib: { level: 9 },
});
const cloudFile = storage.bucket("archives").file("archive.zip");
req.pipe(archive, {
end: false,
});
archive.pipe(cloudFile.createWriteStream());
req.on("end", async () => {
archive.append("string cheese!", { name: "file2.txt" });
archive.finalize();
archive.end();
});
});
as i can see from the documentations they are using fs.createReadStream(file1) to reach out file system however you can achieve this if you get Buffer from the received data
const multer = require('multer')
const upload = multer()
router.post("/", upload.none(), function (req, res, next) {
// append a file from buffer
const buffer = req.files[0].buffer
archive.append(buffer, { name: 'file3.txt' });
})
also a tip if you working in serverless env most likely you don't have access to file system to read, write and clean but at some cases you have access to /temp directory it worth a quick search if this is the case
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