Documentation of MongoDB Functions for NodeJS

Question

I'm confused. I tried to use the findAndModify function of a collection in NodeJS as it was stated in the official MongoDB documentation:

db.collection('myColl').findAndModify(
    {
        query: {
            itemId: ObjectID(itemId),
            requesterId: requesterId
        },
        remove: 1
    },
    function(err, found){ 
        console.log(err, found);
    });

It works fine in the console. But in NodeJS I retrieve an error. The error message told me, I have to provide at least one update or remove. There were some similar questions here on StackOverflow where one of the answers mentioned to use findAndRemove instead.

Okay, but as I searched for a documentation for findAndRemove I haven't found anything helpful. Also, my IDE (WebStorm) marks that method as deprecated. Through the autocomplete, I've also found the function findOneAndDelete which isn't marked as deprecated and seems to do what I want, but I cannot find anything about that function.

Since, I am quite new to NodeJS as well as MongoDB, this stuff is really confusing and I'm very disappointed of this documentation.

My question is: What is the background? Where can I find a useful documentation for the JavaScript API of MongoDB or how to use the MongoDB documentation correctly? Where can I get information on the above-mentioned method?

What mongodb module are you using? Can you provide the documentation you are reading? — michelem
– michelem, Commented Dec 10, 2015 at 11:48
have you included var ObjectID = require('mongodb').ObjectID ? — Shubham
– Shubham, Commented Dec 10, 2015 at 11:50
1. I'm using the native drivers of MongoDB (require('mongodb')) 2. Yes, I've included ObjectID — Green 绿色
– Green 绿色, Commented Dec 10, 2015 at 12:06

Nicola T. Curie · Accepted Answer · 2015-12-10 11:51:43Z

3

I assume you are using the node MongoDB driver.

You can find the documentation of the findAndModify function, aswell as Inserting and updating functions here:

https://mongodb.github.io/node-mongodb-native/markdown-docs/insert.html

answered Dec 10, 2015 at 11:51

Nicola T. Curie

964 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

michelem · Accepted Answer · 2015-12-10 11:53:25Z

3

There are many Node.js modules act to connect and manage a MongoDB server.

The native one is this: https://github.com/mongodb/node-mongodb-native

But you can use also the most popular one Mongoose: https://github.com/Automattic/mongoose

Said that I think your code is wrong it should be:

db.collection('myColl').findAndModify({
    itemId: ObjectID(itemId),
    requesterId: requesterId
}, null, null, {
    remove: 1
},
function(err, found) {
    console.log(err, found);
});

As stated in the doc: findAndModify(query, sort, doc, options, callback)

answered Dec 10, 2015 at 11:53

michelem

14.6k5 gold badges55 silver badges67 bronze badges

Comments

x_maras · Accepted Answer · 2015-12-10 11:59:15Z

0

db.collection('myColl').findAndModify(
   { itemId: ObjectID(itemId), requesterId: requesterId },
   {}, //Do an update here if you want
   { remove: true }, // Remove the doc
   function (err, doc) {
      // do things 
   }
);

https://mongodb.github.io/node-mongodb-native/markdown-docs/insert.html#example

answered Dec 10, 2015 at 11:59

x_maras

2,2171 gold badge26 silver badges35 bronze badges

Collectives™ on Stack Overflow

Documentation of MongoDB Functions for NodeJS

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related