ASP.NET Core 10 Web API CRUD Operations Using Entity Framework Core and SQL Server – Complete Guide (2026)
A product API is a useful first database-backed project: create an item, look it up, change its price, and remove it. The important part is making those operations predictable—validating requests, saving changes asynchronously, and returning the right HTTP status. This guide builds ASP.NET Core 10 Web API CRUD operations using Entity Framework Core and SQL Server . You will create a controller-based inventory API, generate a SQL Server database with migrations, and test every endpoint in Postman. How do you build CRUD operations in ASP.NET Core 10? Create an entity and DbContext, install the EF Core SQL Server provider, register the context with dependency injection, and map controller actions to GET, POST, PUT, and DELETE. Use request DTOs for validation, await database operations, and apply migrations to create the schema. Scope: this is a local learning application with no authentication. It demonstrates complete CRUD wiring, not a production inventory system. Add authorization...