CODEWITHSUNDEEP
javascriptnode.jsmongodbmongoose
Lai32290
Lai32290

Reputation: 8548

How to limit property returned after save?

I'm trying to return the saved object as the request response, but I don't want whole object returned by Model.save() function, it's returning more information than I want, like _id, __v.

My request code is like this:

function insertUser(req, res) {
   const userName = req.Body.name;

      User.save({ name : userName })
         .then(r => {  
            res.send(r);
         });
}

It's returning fallowing JSON to me:

{
    _id: 590f529976aa6142d91870b7,
    name: 'blablabla'
    __v: 4
}

How can I set it to return only { name : 'blablabla' }?

Upvotes: 0

Views: 100

Answers (2)

Sergaros
Sergaros

Reputation: 831

You can write method for this:

Add this method in your user schema: With this method you can control what you return to the client

userSchema.methods.getPublicFields = function() {
  return {
    name: this.name
  };
};

and use it like this

User.save({ name : userName })
     .then(r => {  
        res.send(r.getPublicFields);
     });

Upvotes: 1

Simran
Simran

Reputation: 2810

// transform for sending as json
function omitPrivate(doc, obj) {
    delete obj.__v;
    delete obj.id;
    return obj;
}

// schema options
var options = { toJSON: { transform: omitPrivate } };

// schema
var schema = new Schema({
    name: { type: String, required: true },
}, options);

Upvotes: 0

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