Why Meteor 3.5 Is the Most Important Release in Years
Every framework has a handful of releases that actually change its trajectory. For Meteor, 3.0 was one of them: it removed Fibers and rebuilt the fram…
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MinIO, MongoDB, PostgreSQL для хранения 25 лет истории стоимости акций
💾 MinIO, MongoDB, PostgreSQL для хранения 25 лет истории стоимости акций Когда строишь эмулятор для проверки торговой стратегии 20 акций на 25 лет ист…
Learn 7 common MongoDB query mistakes with simple find() examples, including $or, $in, nested fields, dates, and text search.
7 MongoDB Query Mistakes That Return the Wrong Results VisuaLeaf VisuaLeaf VisuaLeaf Follow Jul 14 7 MongoDB Query Mistakes That Return the Wrong Resu…
7 MongoDB Query Mistakes That Return the Wrong Results
MongoDB queries look simple. You type a field, give it a value, hit run, and you get your data back. But just because a query runs without throwing an…
How I Eliminated 19,494 Duplicate MongoDB Records (And What I'd Do Differently Today)
At a previous organization, I was handed ownership of a job platform serving 1,000+ users worldwide. Jobs on the platform could be scoped to a single …
Day 145 of Learning MERN Stack
Hello Dev Community! 👋 It is officially Day 145 of my software engineering marathon! Today, I locked down the definitive user document model layer for…
Building a Four-Tier Parallel RAG Pipeline with Gemini
The Problem When building BotForge, our AI no-code chatbot platform, we needed a retrieval system that could handle messy, real-world user queries — t…
Обновления GigaIDE за июнь 2026
Всем добрый день. В этой статье мы расскажем вам об июньских изменениях в Pro-функциональности GigaIDE, который можно найти на нашем маркетплейсе . Со…
Meteor 3.5 is out!
Meteor 3.5 is a broad release, and it earns the word. Its center of gravity is the reactive data layer (the part of your app that runs in production a…
Debugging a BSONVersionError in Mongoose: What It Actually Means and How I Fixed It
If you've been building backend services with Node.js and MongoDB long enough, you'll eventually run into an error that looks something like this: BSO…
Extended RUM in DocumentDB: B-tree-like ordered scans for flexible BSON in PostgreSQL
The main challenge in document databases is the flexible nature of fields: the same path can be a scalar, an array, nested, or missing. Despite this, …
I'm building my own Claude-based chatbot, powered by MongoDB
This tutorial was written by Néstor Daza . I use Claude every day. It's a great tool for my day-to-day work, helping with everything from research and…
Wait, MongoDB Does That Too?
Many MongoDB journeys start with “Let’s just store it as JSON for now.” Maybe it’s a product catalog with inconsistent attributes, data from multiple …
[Перевод] Spring Batch научился работать с MongoDB
Spring Batch - проект в рамках экосистемы Spring Framework, который, как правило не получает должного внимания. Тем не менее, это хорошее решение для …
$lookup join strategies: understanding the trade-offs with flexible documents
In a previous post , I explored how MongoDB chooses between nested loop, indexed loop, and hash join strategies for $lookup . Here, I examine what occ…
Moving from Migrate Mongo to Mongo Migrate Kit (mmk) Without Re Running Old Migrations
If you're using migrate-mongo and considering a switch, the biggest concern usually isn't features. It's this: "Will I have to re-run old migrations o…
MongoDB-backed ASP.NET Core Identity, without the EF Core detour
If you're already running MongoDB and you reach for ASP.NET Core Identity, the official story points you at Entity Framework Core. That's a fine answe…
MongoDB Indexes Finally Clicked for Me: Understanding Indexes, Compound Indexes & the Prefix Rule 🚀
While working on a MERN project, I came across these indexes: transactionSchema . index ({ user : 1 , date : - 1 }); transactionSchema . index ({ user…
Day 71 of Learning MERN Stack
Hello Dev Community! 👋 It is officially Day 71 of my unbroken 100-day full-stack engineering run! After mastering polymorphic multi-part storage confi…
Day 68 of Learning MERN Stack
Hello Dev Community! 👋 It is officially Day 68 of my full-stack MERN engineering sprint! Yesterday, I configured the polymorphic multi-part entry form…
Day 63 of Learning MERN Stack
Hello Dev Community! 👋 It is officially Day 63 of my continuous daily sprint toward mastering full-stack MERN software engineering! Yesterday, I confi…
# I Built a Full Stack Academic Management System for My College — Here's How
I Built a Full Stack Academic Management System for My College — Here's How For my B.Tech final year project, me and my team built Student Sphere — a …
MongoDB DR Drill Automation with Terraform, Python & Jenkins — How We Made Restores Boring
Backups Don't Save You. Restores Do. We ran a MongoDB restore drill last quarter. It failed — not the restore itself, but the confidence. Nobody in th…
I Built a MongoDB Migration Tool After One Bad Deploy
A few months ago I shipped a bad MongoDB migration. Classic mistake. I had run 3 migrations. The third one had a bug. I only wanted to rollback that m…
MongoDB Schema Validation: How JSON Schema Keeps Your Data Clean
The "schemaless" database has had JSON Schema validation since 2017. Here's what you're missing. "MongoDB is schemaless." "MongoDB is unorganized." "M…
Engineering Krishi-Route: A Real-Time Geospatial Logistics Engine (MERN + Leaflet)
Logistics is the silent killer of agricultural profit. In India, a farmer's margin is often destroyed not by the harvest itself, but by the sheer cost…
BSON and OSON: documents are designed to be nested, not flat
I like vendors benchmarks as they are often good illustrations of worst practice. Rather than focusing on real implementation trade-offs, they pick an…
$exists and non-sparse indexes in MongoDB and in other DocumentDB
In SQL databases, NULL represents an unknown value — not the absence of a value. When a value is simply non-applicable for a given entity, the correct…
MongoDB `$facet` Explained: One Query, Multiple Results
Sometimes one MongoDB aggregation needs to return more than one result. For example, from the same payments collection, you may want revenue by paymen…
How to Optimize MongoDB on Bare Metal Servers: SRE Playbook
The explosion of artificial intelligence retrieval applications has transformed the way enterprises deploy document databases. However, transitioning …