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Qqodorsqodors.hashnode.devJul 1 · 6 min read

Dependency Injection in .NET Is Easy to Get Wrong

Almost every weird intermittent bug I've dealt with in a .NET app traced back to one place: a service registered with the wrong lifetime in Program.cs. Not the logic inside the service. The single lin

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VSVlad Shulczvshulcz.hashnode.devJun 18 · 8 min read

How I made dependency injection in Python 130× faster: from reflection to compiling the graph

There's a stock argument against DI containers in Python: a container is just overhead, pass the dependency into the constructor yourself and stop overengineering. It sounds reasonable, and I believed

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CDCoding Dropletscodingdroplets.comJun 18 · 10 min read

TimeProvider in ASP.NET Core: Enterprise Decision Guide

Time-dependent code has always been one of the trickiest surfaces to test correctly in .NET applications. Before .NET 8, engineers typically wrote wrapper interfaces around DateTime.UtcNow, maintained

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CDCoding Dropletscodingdroplets.comJun 13 · 11 min read

AddDbContext vs AddDbContextPool vs AddDbContextFactory in ASP.NET Core: Which to Use in 2026?

Three Ways to Register DbContext — and Why the Choice Matters Every ASP.NET Core application that uses Entity Framework Core has to answer the same registration question at startup: AddDbContext, AddD

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AArivucodewitharivu.hashnode.devJun 10 · 4 min read

3 Dependency Injection Mistakes I Made in ASP.NET Core Projects

When I first started building ASP.NET Core applications, Dependency Injection (DI) felt like magic. Register a service, inject it into a constructor, and everything just worked. As my applications gre

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VSVlad Shulczvshulcz.hashnode.devJun 9 · 5 min read

Where should dependency wiring live in a Python app?

Python does not need a dependency injection container by default. For small applications, direct constructor calls are usually the best option: repo = UserRepository(settings.database_url) email = Ema

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CDCoding Dropletscodingdroplets.comJun 4 · 14 min read

7 Common ASP.NET Core Dependency Injection Mistakes (And How to Fix Them)

Dependency injection is baked into ASP.NET Core so deeply that most developers start using it before fully understanding it. That's fine — until production. When DI goes wrong, the failures are subtle

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VSVlad Shulczvshulcz.hashnode.devMay 26 · 6 min read

When Python manual wiring turns into copy-paste architecture

I usually avoid dependency injection containers in Python. Not because dependency injection is bad. Most of us already do it when we pass objects into constructors. I avoid containers because small Py

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CDCoding Dropletscodingdroplets.comMay 25 · 12 min read

ObjectDisposedException: Cannot Access a Disposed Context Instance in ASP.NET Core — Root Cause and Fix

The error ObjectDisposedException: Cannot access a disposed context instance is one of those production surprises that hits developers at the worst time — usually under load, during a scheduled job, o

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DDeepanjlibunnylearnscode.hashnode.devMay 20 · 1 min read

Day1

Did 2 leetcode problems- Sliding Window MaximumLearned about monotonic queues.. Implementation . Also learned even if algorithm is same, some things can still increase runtime.1. static int dq[100005]

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Trending tags this week

Dependency Injection in .NET Is Easy to Get Wrong

How I made dependency injection in Python 130× faster: from reflection to compiling the graph

TimeProvider in ASP.NET Core: Enterprise Decision Guide

AddDbContext vs AddDbContextPool vs AddDbContextFactory in ASP.NET Core: Which to Use in 2026?

3 Dependency Injection Mistakes I Made in ASP.NET Core Projects

Where should dependency wiring live in a Python app?

7 Common ASP.NET Core Dependency Injection Mistakes (And How to Fix Them)

When Python manual wiring turns into copy-paste architecture

ObjectDisposedException: Cannot Access a Disposed Context Instance in ASP.NET Core — Root Cause and Fix

Day1