MongoDB
A 4 posts collection

GitYeller.com is my latest weekend project

It all started when Adonis told me that he was looking to contribute to some open source projects. He had a list of projects that he actively uses but he didn't want to always be checking their issues list for new issues that he could get his hands… »

MongoDB Aggregation: $lookup for JOINs

As of MongoDB 3.2, a new feature has been added that introduces a left outer join for the first time. is part of the MongoDB aggregation pipeline. It's a separate stage and the syntax is really simple: The above command will fetch every document… »

Mongoose objects and the IN operator

Today I lost a few hours trying to understand why a document that I was fetching through Mongoose, kept returning true against checking for a field with the operator, even though the document didn't contain that field. But still it would return true… »

Geospatial Query with MongoDB and Node.js

Hasn't been a long time when i started working with Wearetech.io and my first challenge was on. Sweet! If you want to learn more about Wearetech.io, check the site and our Github repo. Now on the fun part. We have a use case where an individual would… »

I am Kostas Bariotis, a web developer, a proud wanderer and a passionate doer. My mission is to write clean and efficient code, to solve problems on the Web and to learn something more. Read more about me or get in touch .