Create Web API in ASP.NET Core | GET POST PUT DELETE (CRUD with List)

In this video, you will build a Web API in ASP.NET Core and implement GET, POST, PUT, and DELETE methods using an in-memory List (no database). This is a beginner-friendly, practical REST API tutorial where you will learn how to create endpoints, test them, and understand how API CRUD works step by step. 🔥 What You’ll Learn in This Video ✔ What is a Web API in ASP.NET Core ✔ Creating REST API endpoints ✔ GET: Return list + single item by id ✔ POST: Add new data into List ✔ PUT: Update existing data ✔ DELETE: Remove data by id ✔ Returning proper JSON responses ✔ Basic validation + status codes (conceptual) ✔ Testing API endpoints (Postman / browser) 💡 Why Use In-Memory List? Using List helps you understand CRUD logic quickly before connecting a real database. In upcoming videos, we will connect the API with SQL/EF Core and consume it using AJAX. 🛠 Technologies Used ✔ ASP.NET Core ✔ Web API / REST ✔ HTTP Methods (GET, POST, PUT, DELETE) ✔ JSON ✔ C# List (In-Memory Data) 🚀 Who Is This Video For? ✔ Beginners learning APIs ✔ ASP.NET Core developers ✔ Students building real-world projects ✔ Anyone who wants REST API fundamentals 📢 Playlist: ASP.NET Core MVC Complete Course 2025 – From Zero to Hero (Project Based) #WebAPI #AspNetCore #RESTAPI #DotNet #CRUD