🧩 Custom Scope & Scoped Objects in .NET Core – Explained with Analogies (Fresher Experienced Architect)

🎯 Introduction

In .NET Core’s Dependency Injection (DI), services can have lifetimes: Transient, Scoped, and Singleton.
The Scoped lifetime is special because it lives within a request (scope). Sometimes, developers need to create custom scopes manually.

👉 Full detailed article:
https://fullstackprep.dev/articles/webd/netcore/custom-scope-scoped-object-dotnet-core

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👶 Fresher Level: Analogy

Think of a shopping mall:

Transient → A disposable shopping bag (new every time).

Scoped → A shopping cart you use during one visit (scope).

Singleton → The mall building itself (shared across everyone).

Now, sometimes you may want to create a special VIP zone (custom scope) where you keep separate carts just for that section. That’s what custom scope is in DI.

👨‍💻 Experienced Level: Practical Usage

Scoped Services → Created once per HTTP request.

Custom Scope → You can create your own IServiceScope when working outside standard HTTP requests (e.g., background jobs, worker services).

Example
using (var scope = serviceProvider.CreateScope())
{
var myService = scope.ServiceProvider.GetRequiredService();
myService.Process();
}

👉 Detailed explanation here:
https://fullstackprep.dev/articles/webd/netcore/custom-scope-scoped-object-dotnet-core

🏗️ Architect Level: Enterprise Perspective

For architects, scoped lifetimes & custom scopes matter in:

Background Services → Each job/task can have its own scope.

Multi-Tenant Apps → Create tenant-specific scopes for isolation.

Resource Management → Avoids memory leaks by disposing scoped services properly.

Testing & DI Containers → Custom scopes allow simulating real HTTP request lifecycles in unit tests.

This ensures controlled lifetimes, cleaner architecture, and resource safety.

🚀 Closing Thoughts

Scoped services are like shopping carts during a visit — they exist only as long as you need them.
Custom scopes give developers more control in non-request scenarios, making DI more flexible.

👉 Read the full deep dive here:
https://fullstackprep.dev/articles/webd/netcore/custom-scope-scoped-object-dotnet-core

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