ASP.NET Core offers three powerful approaches—Razor Pages, MVC, and Minimal APIs. Each serves a specific purpose depending on the type of application you're building.

🧾 Razor Pages

Best for: Page-focused web apps with simple UI logic.

• Follows MVVM (Model-View-ViewModel) pattern.
• Each page has a .cshtml view and a PageModel class.
• Logic and UI are grouped together.

✅ Pros

• Simple and clean for page-based web apps.
• Beginner-friendly.
• Efficient for CRUD and form operations.

❌ Cons

• Less flexible for complex routing.
• Not ideal for APIs or highly dynamic UIs.

📁 Example Structure

/Pages
 ├── Index.cshtml
 └── Index.cshtml.cs

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🧱 MVC (Model-View-Controller)

Best for: Full-featured web apps with complex UI and routing.

• Uses MVC separation of concerns.
• Controllers handle logic, Views handle UI, Models handle data.
• Great for apps requiring multiple views and RESTful APIs.

✅ Pros

• Highly flexible and scalable.
• Supports REST APIs and UI in one project.
• Advanced routing and middleware support.

❌ Cons

• More boilerplate code.
• Requires deeper architectural understanding.

📁 Example Structure

/Controllers
 └── HomeController.cs
/Views
 └── Home
     └── Index.cshtml
/Models
 └── User.cs

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⚡ Minimal APIs

Best for: Lightweight services, microservices, serverless APIs.

• Introduced in .NET 6+.
• No controllers or views—everything is defined in Program.cs.
• Designed for quick development with minimal syntax.

✅ Pros

• Very fast to build and deploy.
• Minimal code and configuration.
• Perfect for REST endpoints and backend services.

❌ Cons

• Not suitable for complex UI applications.
• Can get messy if project grows large.

📁 Example

var app = WebApplication.Create();
app.MapGet("/hello", () => "Hello World!");
app.Run();

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🧭 Quick Comparison Table

Feature	Razor Pages	MVC	Minimal APIs
Pattern	MVVM	MVC	Functional
UI Support	Yes (.cshtml)	Yes (.cshtml)	No
API Support	Limited	Full	Full
Routing	Convention-based	Attribute & Convention	Explicit
Best Use Case	Simple web pages	Complex web apps	Lightweight APIs
Learning Curve	Low	Medium–High	Very Low

🧠 When to Use Each

Use Case	Razor Pages	MVC	Minimal APIs
Page-based UI	✅	✅	❌
RESTful API	❌	✅	✅
Rapid prototyping	✅	❌	✅
Complex routing and filters	❌	✅	❌ (limited)
Microservices or serverless	❌	❌	✅

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🎯 Final Tip

MVC = Best for full-featured web apps with UI + APIs.
Razor Pages = Best for simple, page-centric sites.
Minimal APIs = Best for fast, lightweight backend APIs and microservices.