Mongoose : json value not updating

1

value is not updating

app.get("/api/exercise/log", (req, res) => {
  const userId = req.query.userId;
  console.log(userId);
  if (!userId) {
    res.send("enter user id");
  } else {
    userInfo.findById(userId, (err, data) => {
      if (err) {
        return err;
      } else {
        let a = data;
        a["etc"] = "etc";
        console.log(a);
        res.json(a);
      }
    });
  }
});
2

The above code cannot update sinnce you are just finding an item by id, use findAndUpdate instead… which takes a query i.e what to search and what to update

3

but I’m saving it in different variable

4

send me the link to your project
in the mean time, you could instead copy values in data to variable a like this:

let a = {...data}

that is if you want an object using the spread operator

5

I changed the code ,I’m using logProcessing function to give logs but its not working properly

6

fixed it , I was thinking log array was ["date1","date2"]
but it was [{date:date1},{date:date2}]

1 Like