User.findById() throws a CastError

[connecteddeveloper]

The get route in the api (from chapter 10) throws an error when a user id is passed in the url in postman.

Here is the relevant code:

User.findById(req.params.user_id, function (err, user) {
if (err) res.send(err);

        res.json(user);
    });

{
"message": "Cast to ObjectId failed for value "54e17f7d44a911a16653b4b" at path "_id"",
"name": "CastError",
"type": "ObjectId",
"value": "54e17f7d44a911a16653b4b",
"path": "_id"
}

I've tried casting the value from req.params.user_id to an id using mongoose.Types.ObjectId(), but still no luck. This problem happened with the code from the repo as well as my own code.

[chris-sev]

Can you add an image of your POSTman?

Chris Sevilleja | scotch.io http://scotch.io/
@scotch_io http://twitter.com/scotch_io
@sevilayha http://twitter.com/sevilayha

On Wed, Feb 18, 2015 at 6:34 PM, connecteddeveloper <
[email protected]> wrote:

The get route in the api (from chapter 10) throws an error when a user id
is passed in the url in postman.

Here is the relevant code:

User.findById(req.params.user_id, function (err, user) {
if (err) res.send(err);

    res.json(user);
});

{
"message": "Cast to ObjectId failed for value "54e17f7d44a911a16653b4b"
at path "_id"",
"name": "CastError",
"type": "ObjectId",
"value": "54e17f7d44a911a16653b4b",
"path": "_id"
}

I've tried casting the value from req.params.user_id to an id using
mongoose.Types.ObjectId(), but still no luck. This problem happened with
the code from the repo as well as my own code.

—
Reply to this email directly or view it on GitHub
#21.

[connecteddeveloper]

[connecteddeveloper]

I got this to work using the find method and passing in the id instead:

var id = req.params.user_id;
    User.find({_id: id}, function(err, user) {

        if (err) return res.send(err);

        // return that user
        res.json(user);
    });

[ghost]

@connecteddeveloper I got this to work by adding return to the if statement.

  .get(function(req, res) {
    User.findById(req.params.user_id, function(err, user) {
      if (err) return res.send(err);

      // return that user
      res.json(user);
    });
  })

[josephkandi]

Mine works fine, i can retrieve the user without issues, it could have been version issues with Mongo maybe