ASP.NET Core Web API JWT Authentication | SQL Server Database First Approach | Step-by-Step Tutorial

Опубликовано: 04 Август 2026
на канале: Satyarth Programming Hub
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In this comprehensive ASP.NET Core Web API tutorial, you'll learn how to implement JWT (JSON Web Token) Authentication using SQL Server Database First Approach with Entity Framework Core.

This step-by-step guide covers both the theory and practical implementation of JWT Authentication, helping you secure your Web APIs the right way.

📌 What you'll learn:
✔ What is JWT Authentication?
✔ Authentication vs Authorization
✔ JWT Token Structure Explained
✔ SQL Server Database First Approach
✔ Entity Framework Core Scaffolding
✔ User Login API Implementation
✔ Generating JWT Tokens
✔ Configuring JWT Authentication Middleware
✔ Protecting API Endpoints using [Authorize]
✔ Testing APIs with Postman
✔ Best Practices and Common Mistakes

Whether you're preparing for interviews, building real-world APIs, or learning ASP.NET Core Web API development, this tutorial will help you understand JWT Authentication from fundamentals to implementation.

🔥 Perfect for:
• ASP.NET Core Developers
• .NET Beginners and Intermediate Developers
• Web API Developers
• Software Engineering Interview Preparation
• Developers working with Existing SQL Server Databases

Source Code and Resources:
🌐 Website: https://satyarthprogramminghub.com
💻 GitHub: https://github.com/satyarthprogrammin...

#aspnetcore #webapi #jwt #authentication #authorization #dotnet #entityframeworkcore #sqlserver #databasefirst #csharp #programming #softwaredevelopment

Source Code ------------------------------
https://github.com/satyarthprogrammin...

NuGet Packages -----------------------
Install-Package Microsoft.EntityFrameworkCore.SqlServer
Install-Package Microsoft.EntityFrameworkCore.Tools
Install-Package Microsoft.AspNetCore.Authentication.JwtBearer
Install-Package BCrypt.Net-Next

Scaffold Command --------------------------
Scaffold-DbContext "Server=YourServer;Database=YourDB;Trusted_Connection=True;TrustServerCertificate=True;"
Microsoft.EntityFrameworkCore.SqlServer -OutDir Infrastructure/Data/Entities -Context MyDbContext -Force -v

Chapters:

00:00 - Introduction & Overview (Code-First vs. Database-First)
01:13 - Understanding the Database Schema (Users & Roles Tables)
01:54 - Creating the ASP.NET Core Web API Project
03:08 - Configuring the Connection String in appsettings.json
04:09 - Generating Models with Scaffold-DbContext (Database-First)
06:20 - Installing Required NuGet Packages (EF Core, JWT, BCrypt)
08:50 - Running the Scaffolding Command & Exploring Generated Models
11:58 - Reviewing the Navigation Properties & Relationships
14:00 - Configuring JWT Settings in appsettings.json
16:02 - Implementing the Repository Pattern (IUserRepository)
21:04 - Implementing the Auth Service & Login Logic
25:52 - JWT Token Generation Logic Explained
32:46 - Password Hashing & Verification with BCrypt
34:14 - Creating the Auth Controller (Login Endpoint)
37:46 - Creating a Protected Controller with Role-Based Access
41:06 - Configuring Program.cs (DI, Authentication, & Authorization)
48:43 - Testing the API with Postman (Success & Error Scenarios)
51:46 - Verifying Role-Based Access (Admin vs. User)
53:53 - Conclusion & Next Steps