#aggregation-pipeline articles

SKSanjeev Kumarsanjeevkumardotin.hashnode.devJul 18 · 2 min read

MongoDB aggregation pipeline

What is MongoDB? MongoDB is a NoSQL, document-oriented database that stores data in flexible, JSON-like documents instead of traditional rows and columns like in relational databases. What is an aggre

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LMLavkush Mauryalavkush-maurya-blogs.hashnode.devApr 7 · 4 min read

MongoDB Aggregation Pipeline: From Basics to Behind the Scenes

In this blog, you are going to understand the internals of the MongoDB aggregation pipeline. Most of us, when we first face this aggregation pipeline, get confused about why they use the $ sign inside

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VVirajblog.virajpatwardhan.inFeb 19 · 3 min read

How I Almost Built an Expensive Feature (And What Saved Me)

Building an edit profile page sounds straightforward until you realize just how much data you're dealing with. The Problem I Didn't See Coming A few months ago, I was tasked with building a profile edit feature. Simple enough, right? But when I start...

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SMsandeep mehtamongodb-aggregation-pipelines-power.hashnode.devSep 6, 2025 · 6 min read

How MongoDB Aggregation Pipelines Power Channel Profiles Like YouTube

Imagine you’re on YouTube, clicking a channel’s profile, and instantly seeing their subscriber count, who they’re subscribed to, and whether you’re subscribed. It feels seamless, right? But behind the scenes, there’s some serious database magic at wo...

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VSVedant Swamivedcodes.hashnode.devJul 30, 2025 · 16 min read

MongoDB Aggregation: The Secret Weapon for Data Transformation

Ever looked at your raw data and wished you could transform it, summarize it, and get meaningful insights out of it? That's exactly what MongoDB's Aggregation Pipelines are for! Think of it like an assembly line for your data, where each "station" (c...

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ASAnsh Sachanmongodb-aggregation-pipelines.hashnode.devJul 10, 2025 · 7 min read

MongoDB aggregation pipelines

What is aggregation pipelines in mongoDB ? The Aggregation pipeline is a very powerful tool in mongoDB it is used to process data through various operators and return computed results. MongoDB aggregates data through multiple steps and at the end it ...

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DADarshit Anjariadarshitanjaria.hashnode.devJul 10, 2025 · 4 min read

The MongoDB Stage Every Location-Based App Should Use

Hey devs! 👋 Want to find documents closest to a specific location in MongoDB? $geoNear is your best bet! 📍 It calculates distance and sorts results by proximity—ideal for maps, nearby searches, and geo-powered apps. Let’s dive in! 🌍 Ever wondered...

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IBIsmail Bin Mujeebbeyondthestack.hashnode.devJul 4, 2025 · 4 min read

You are handling timestamps incorrectly with MongoDB!

You're probably not even aware of it, but you use createdAt and updatedAt in your backend services all the time, right? But what if I told you that you're sending raw timestamps in your API responses like this: { "title": "You are handling timest...

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JVJayesh Vermajayeshverma.hashnode.devJun 9, 2025 · 4 min read

🔍 Understanding Key Backend Concepts in a Real Express + MongoDB API

When building backend APIs using Express.js and MongoDB, you’ll come across many concepts like route parameters, aggregation pipelines, and error handling. This article breaks down some essential backend topics using an example like getUserChannelPro...

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MSMd Sohail Ansarisohailblogs.hashnode.devMar 28, 2025 · 3 min read