Nodejs upload multiple images - create dir when doesnt exist

Question

Im using nodejs and multer to upload multiple images. Firsat check is if dir exist. If not will be created.

Error: When folder doesnt exist all images are passing the first condition fs.access by giving the message "Directory doesnt exist" but then dir is created so the second image gets an error "Directory exist".

var storage = multer.diskStorage({
  destination: (req, file, cb) => {
    const userId = encryptFolder(req.params["id"]);
    const dtrToCreate = "C:/Users/User/Pictures/" + userId;
    fs.access(dtrToCreate, (error) => {
      if (error) {
       console.log("Directory does not exist.", userId);
        fs.mkdirSync(dtrToCreate, (error, data) => {
          if (error) {
            throw error;
          }
        cb(null, "C:/Users/User/Pictures/"); 
        });

      } else {
        console.log("Directory exists.", userId);
        cb(null, "C:/Users/User/Pictures/");
      }
    });
  },

When directory exist images are uploaded sucessfully.

Answer 1

Working solution:

Since there are multiple files should be a recusrsive function to check if folder exist each time files passing.

  fs.mkdirSync(dtrToCreate, { recursive: true })
        return cb(null, dtrToCreate)