.NET 5 Web API & Entity Framework Crash Course

Introduce the mvc pattern as the foundation and prepare to build a dotnet five web api by creating a contacts controller and model to implement crud operations.

Explore how the model, view, and controller interact in mvc pattern: the model stores data, the view presents it, and the controller performs create, update, and delete operations.

Create an API controller with read-write actions, derive from controller base, and enable API routing; return a mock contact list via a get method.

Discover how http methods map to crud operations in practice, focusing on get, post, put, and delete, including soft delete and code generation from entity framework.

Explore how the Http get attribute routes a single contact by id, using route parameters, a lambda with first or default, and returning the contact or 204 no content.

Use IActionResult to return http status codes such as 200 and 404, wrap a contact in the result, and provide a custom message when an id is not found.

Learn how http post and the from body attribute bind a contact object from the request body, then return the updated list and test with Postman using a json body.

Learn how to implement a put update in a .NET 5 Web API, updating a contact by id with body data, handling not found, and returning the updated list.

Implement the delete call by using the http delete attribute and returning an action result to display the updated contact list, handling not found cases for invalid IDs.

Master the model-view-controller pattern and http request methods for crud, create your first model and controller, then transition to persisting data with entity framework in dotnet five.

Connect your web API to a database table and persist data using Entity Framework with CRUD operations, using Code First migrations on SQL Server Express and asynchronous service calls.

Explore how object-relational mapping connects models to relational databases using Entity Framework, and learn how code-first migration creates and updates tables and relations.

Install the preview of Entity Framework Core with the dotnet CLI, including global tool installation, exact version, and core SQL Server and design packages, then restart Visual Studio if needed.

Add the initial create migration with dotnet ef migrations add initial create, then run dotnet ef database update to create the contacts table.

Build get implementations in a .NET 5 web api with entity framework and dependency injection, using the data context and dbset to fetch contacts asynchronously and test with postman.

Demonstrate creating new contacts via post requests, adding entries to the contacts table, saving changes for a 201 created response, and retrieving all contacts from the data context.

Use a PUT to update a contact by including the id in the URL and body, mark the entry as modified, and save changes, returning 204 or 404 as appropriate.

Find the contact by id, return not found if absent, remove the entry with entity framework, save changes, and present the list; implement a soft delete with the isdeleted flag.