Over a million developers have joined DZone.

Creating test data in MongoDB using node.js

· Performance Zone

Discover 50 of the latest mobile performance statistics with the Ultimate Guide to Digital Experience Monitoring, brought to you in partnership with Catchpoint.

I need to create a fairly large number of test documents in my MongoDB to test some functionality that will be retrieving pages of data, ordered by date.

Rather than doing this by hand, using the Node.js driver for MongoDB makes this pretty easy with only a few lines of code. This is a starting point, in my case I need to add some additional logic to increment a date value and create some other random values on each doc, but this is a rough outline of an approach:

Assuming Node.js already installed, install the MongoDB Node.js driver with:

npm install mongodb

The code to install multiple docs in one shot looks something like this: 

var MongoClient = require('mongodb').MongoClient,
  test = require('assert');
 
var ObjectId = require('mongodb').ObjectID;
 
MongoClient.connect('mongodb://localhost:27017/databasename', function(err, db) {
  test.equal(err, null);
 
  var col = db.collection('collectioname');
  var docs = [];
 
  //update this for how many docs to insert
 
  for(i=0; i<10; i++){
    docs[i] = {a:i}; // create doc here using json
  }
 
  col.insertMany(docs, function(err, r) {
    test.equal(err, null);
    console.log(r.insertedCount);
    db.close();
  });
});
Run the script with: 
node scriptname.js 

Additional info in the MongoDB Getting Started Guide  for node.js

Is your APM strategy broken? This ebook explores the latest in Gartner research to help you learn how to close the end-user experience gap in APM, brought to you in partnership with Catchpoint.

Topics:

Opinions expressed by DZone contributors are their own.

The best of DZone straight to your inbox.

SEE AN EXAMPLE
Please provide a valid email address.

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.
Subscribe

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}