WEB API CRUB Operation using code first approach || SQL Server || visual studio || .Net full course

 WEB API CRUB Operation using code first approach || SQL Server || visual studio || .Net full course

Prerequisites: Visual Studio installed on your system. Basic knowledge of C# programming language. SQL Server installed or accessible. 

Step 1: Setting up the Project Open Visual Studio and create a new project. Select "ASP.NET Core Web Application" template. Choose a project name and location, then click "Create." In the next window, select "API" as the project template and ensure that "ASP.NET Core" and the desired .NET version are selected.

 Step 2: Setting up Entity Framework Core Install Entity Framework Core if not already installed. You can do this via NuGet Package Manager. mathematica Copy code Install-Package Microsoft.EntityFrameworkCore.SqlServer Install-Package Microsoft.EntityFrameworkCore.Tools Define your model classes. These will be the entities that map to your database tables. Define a DbContext class that inherits from DbContext provided by Entity Framework Core. This class will represent your database context and will include DbSet properties for each of your model classes. 

Step 3: Database Migration Create an initial migration to generate the database schema based on your model classes. sql Copy code Add-Migration InitialCreate Apply the migration to create the database. mathematica Copy code Update-Database.

 Step 4: Creating Web API Controllers Add a new folder for your controllers (e.g., Controllers). Create a new Web API controller for each of your model classes (e.g., ProductsController for a Product model). Implement CRUD operations in each controller using methods such as GET, POST, PUT, and DELETE. 

Step 5: Testing the API Run your application. Use tools like Postman or Swagger UI to test your API endpoints. Test each CRUD operation to ensure they are working as expected. 

Step 6: Advanced Topics Implementing validation: Use Data Annotations or Fluent API for model validation. Authentication and Authorization: Secure your API using JWT tokens or other authentication mechanisms. Error handling: Implement global error handling to provide meaningful error messages to clients. Optimistic Concurrency: Handle concurrency conflicts when multiple clients try to update the same resource simultaneously. Logging and Monitoring: Implement logging and monitoring to track API usage and diagnose issues. Additional Resources: Entity Framework Core Documentation ASP.NET Core Documentation Microsoft Learn provides comprehensive tutorials and courses on .NET development. Pluralsight and Udemy offer courses on ASP.NET Core development.