How to create a file inside a folder?

I have

fileUploadPath="d:/downloads"; 

and

entry.name='155ce0e4-d763-4153-909a-407dc4e328d0/63690689-e183-46ae-abbe-bb4ba5507f1a_MULTI_0_3/output/res2/res2.fcs';

when try to create res2.fcs file with following above path it shows gives me error, why it is not creating the folder structure?

code:

data.entries.forEach(entry => {
    console.log(entry.name);
    if (fs.existsSync(fileUploadPath)) {
        var sourceFilePath = fileUploadPath + '/' + entry.name;
        if (!fs.existsSync(sourceFilePath)) {
            fs.mkdir(sourceFilePath, {recursive: true }, (err) => {if (err) {
                    console.log("Failed :" + err);
                } else {
                    const fstream = fs.createWriteStream(require('path').format({dir: fileUploadPath, base: entry.name })); fstream.write('fileContent');
                    fstream.end();
                    fstream.on("finish", f => {
                        console.log(f)
                    });
                    fstream.on("error", e => {
                        console.log(e)
                    });
                }
            });
        } else {
            console.log('d');
        }
    } else {
        console.log('ssss')
    }
})

  

error:

[Error: ENOENT: no such file or directory, open 'D:downloads626a69d18d2468c5082fc6e1MULTI_1_2022-04-28_11-00-38outputres1res1.fcs'] {
  errno: -4058,
  code: 'ENOENT',
  syscall: 'open',
  path: 'D:\downloads\626a69d18d2468c5082fc6e1\MULTI__2022-04-28_11-00-38\output\res1\res1.fcs'

Answer

you’re passing file path to .mkdir instead of folder, so you should first create a folder, and then write the file

(as you’re creating a folder that has the same name as the file, you should’ve got EISDIR error, instead of this one, which also says the file write didn’t work)

use path.dirname to extract folder and pass it to .mkdir:

// require path module at the top of the script
const path = require('path');


fs.mkdir(path.dirname(sourceFilePath), { recursive: true }, (err) => {
//...