node.js - res.download error Request Aborted on large zip file express, fast-csv, zip

Question

I am using fast-csv to convert the data from mongodb to CSV format, and then save it to the products folder where all the banner images are also present. So I am zipping products folder with all the banner images and CSV file and return zip file with res.download as response on the API call.

The following code only contains the necessary part.

import * as csv from "fast-csv";
const ws = fs.createWriteStream("products/file.csv");

 csv
    .write(data, {
        headers: [
          "_id",
          "name",
          "description",
          "banner",
        ],
      })
      .on("finish", function () {
        // console.log("Write to csv successfully!");
      })
      .pipe(ws)
      .on("close", async function () {
        try {
          if (!fs.existsSync("tmp")) {
            fs.mkdirSync("tmp");
          }
          await zipDir("products", "tmp/zipfile.zip");
          res.download("tmp/zipfile.zip", "products.zip", async function (err) {
            if (err) {
              console.error(err);
            }
          });
        } catch (error) {
          console.error(error);
        }
      });

This code works when there are less products and zip file is small but fails for large zip file with error

Error: Request aborted
    at onaborted (/home/user/project/node_modules/express/lib/response.js:1025:15)
    at Immediate._onImmediate (/home/user/project/node_modules/express/lib/response.js:1067:9)
    at processImmediate (internal/timers.js:461:21) {
  code: 'ECONNABORTED'

question from:https://stackoverflow.com/questions/65898999/res-download-error-request-aborted-on-large-zip-file-express-fast-csv-zip

Answer 1

Waitting for answers