Build Your First ASP.NET Core Web API (.NET 10) 🚀

In this tutorial, you’ll learn how to build a .NET 10 ASP.NET Core Web API from scratch using entity framework core, asp.net core web api, web api .net, swagger, scalar, etc.
We create a complete REST API with controllers, service classes, dependency injection, Entity Framework Core, SQL Server, and DTOs.

Entity Framework Core - Code First: https://youtu.be/-Wo7_KCOvxI
Swagger Setup: https://youtu.be/mk8m9w7tIgg
Scalar Setup: https://youtu.be/vjT2M_LMZMs

This step-by-step .NET tutorial covers everything from project setup to database integration, including API documentation with Swagger and Scalar. If you’re looking to understand how modern ASP.NET Core Web APIs/RESTful API are built in production, this video is for you.

🔧 What You’ll Learn in This Video
Project overview and structure in Visual Studio
Launch settings and application configuration
Understanding Program.cs in ASP.NET Core
Built-in Dependency Injection: AddScoped
Creating a Service layer (clean architecture)
Working with Controllers and Routing
Using HTTP files for API testing
API documentation with Scalar and Swagger
Creating models and DTOs
Using Entity Framework Core
Configuring SQL Server and connection strings
Running EF Core migrations
Building a clean and maintainable .NET Web API

Chapters:
00:00 Project Overview – What We’re Building
02:00 Launch Settings Explained
03:05 AppSettings & Configuration
05:25 Program.cs Deep Dive
06:57 Scalar Setup & Overview
08:23 Swagger Setup & Usage
11:12 Creating Web API Controller
18:45 HTTP File for API Testing
22:46 Entity Framework Core Setup
26:11 SQL Server Connection String
30:03 SQL Server & EF Core Migrations
34:03 Service Class & Business Logic Layer
36:26 Dependency Injection in ASP.NET Core
46:20 DTOs (Data Transfer Objects) Explained

Tags
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