In recent years, combining modern frontend based on React with the robust backend offered by .NET Core (C#) has become an increasingly popular choice for developing scalable web applications. This article gives you an overview of this technological combination and prepares you for developing a real project: a blog-type website built on solid principles.
🛠️ Why React + .NET Core?
Advantages of React:
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⚡ High performance: virtual DOM and efficient updates.
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♻️ Reusable components: UI is composed of declarative components.
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🌍 Vast ecosystem: millions of packages available (npm/yarn).
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👥 Community and support: used by large companies (Meta, Instagram, Airbnb, etc.).
Advantages of .NET Core:
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💪 Performance and scalability: .NET Core is cross-platform, fast, and efficient.
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🧱 Clean and testable architecture: supports DDD, CQRS, MediatR, etc.
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🔐 Built-in security: Identity, JWT authentication, authorization.
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🌐 Easy database integration: via Entity Framework Core.
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☁️ Cloud-ready (Azure friendly)
🧩 Communication between React and .NET Core
The React application handles:
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Client-side routing (SPA)
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UI, validation, interaction
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HTTP calls to API
The .NET Core application (Web API) handles:
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Business logic (DDD)
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Data access (EF Core, SQL)
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Authentication/authorization
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Server-side validations and error returning
🔄 The two parts communicate via HTTP (REST APIs), using libraries like axios on the frontend.
🧱 When is this stack useful?
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🔖 Content websites: blogs, magazines, landing pages
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🛒 eCommerce applications: fast frontend + robust backend
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🧾 Administrative applications: dashboards, custom CMSs
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🎓 Educational or internal applications: learning/testing spaces
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🧠 Projects that require clear separation between UI and logic
🗂️ Recommended project structure
The project will be divided as follows:
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Frontend (React + TypeScript) – independent, separate folder
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Backend (.NET Core Web API) – organized by DDD: Domain, Application, Infrastructure
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Database – SQL Server (or PostgreSQL)
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Communication – REST API with JWT Authentication
📌 What you will learn in this series
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How to apply DDD in a real application
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How to structure a backend application in clear layers
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How to build a modern frontend with React + TypeScript
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How to test both frontend and backend
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How to implement authentication with JWT and protect routes
🧭 What’s next
In the next article, we will create the basic structure of the application: a backend in .NET Core and a React frontend, organized in two separate projects, ready for development.
