Legacy support of MongoDB for Node.js

CAST supports MongoDB via its com.castsoftware.nodejs extension. Details about the support provided for Node.js source code is discussed below.

WARNING: This documentation page is for com.castoftware.nodejs from 2.10.x - 2.12.x. If you need to view documentation for more recent releases see here.

Supported Libraries

The following libraries are supported:

MongoDB
Mongoose
Prisma

Objects

Icon	Description
	Node.js MongoDB connection
	Node.js unknown MongoDB connection
	Node.js MongoDB collection

Supported MongoDB

Supported links

Link Type	Source and destination of link	Supported APIs
useInsertLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	db.collection.insertMany
useUpdateLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	db.collection.findOneAndUpdate db.collection.findOneAndReplace db.collection.replaceOne db.collection.updateOne db.collection.updateMany
useDeleteLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	db.collection.findOneAndDelete db.collection.deleteOne db.collection.deleteMany db.collection.remove
useSelectLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	db.collection.find db.collection.findOne

Example

Taking the following codes:

var MongoClient = require('mongodb').MongoClient

var url = 'mongodb://localhost:27017/myproject';

var insertDocuments = function(db, callback) {
  var collection = db.collection('documents');
  collection.insertMany([
    {a : 1}, {a : 2}, {a : 3}
  ], function(err, result) {
    callback(result);
  });
}

var updateDocument = function(db, callback) {
  var collection = db.collection('documents');
  for (i = 0; i < 2; i += 1) {
	collection.updateOne({ a : 2 }
	  , { $set: { b : 1 } }, function(err, result) {
	  callback(result);
	});
  }
}

MongoClient.connect(url, function(err, db) {
  insertDocuments(db, function() {
    updateDocument(db, function() {
      db.close();
    });
  });
});

In this example, a ‘Node.js MongoDB connection’ and a ‘Node.js MongoDB collection’ objects are created. This extension creates a ‘useInsert’ link from function ‘insertDocuments’ to the collection ‘documents’ and a ‘useUpdate’ link from function ‘updateDocument’ to the collection ‘documents’:

Supported Mongoose

Supported links

Link Type	Source and destination of link	Supported APIs
useInsertLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	model.create model.insertMany
useUpdateLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	model.findByIdAndUpdate model.findOneAndUpdate model.findOneAndReplace model.replaceOne model.updateOne model.updateMany
useDeleteLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	model.deleteOne model.deleteMany model.findByIdAndDelete model.findOneAndDelete
useSelectLink	Between JavaScript Function (JavaScript Initialisation also) and Node.js MongoDB collection	model.exists model.find model.findOne model.findById model.where

Example

Taking the following codes:

var mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/analyzerlauncher', function(err) {
  if (err) { throw err; }
});

userModel = mongoose.model('users', userSchema);

function find(req,res) {
  userModel.findOne(req.params.id, function (err, authorize) {})
}

In this example, a ‘Node.js MongoDB connection’ and a ‘Node.js MongoDB collection’ objects are created. This extension creates a ‘useSelect’ link from function ‘find’ to the collection ‘users’:

Supported Prisma

See Prisma support for Node.js - MongoDB database.