The Complete Guide To Build Rest Api's with Asp.Net and C#

Understand what an API is and how software interact; a booking example shows API as the messenger that takes requests and returns responses with RESTful APIs in ASP.NET and C#.

Create a web API project in visual studio by selecting the asp.net web application with the empty template, choosing the web api option, and naming it quartz api.

Explore the architecture of an asp.net web api project, from solution explorer components to routing, startup life cycle, and key folders like controllers, models, and app data.

Explore the core http verbs—get, post, put, and delete—and how they map to read, create, update, and delete in REST APIs, with Postman installation.

Create a first rest api in asp.net by modeling a quote and implementing get, post, put, and delete in a controller, tested with postman.

Explore the code first approach, where entity framework creates the database and tables from your classes, eliminating the need to design the database manually.

Learn how to install the entity framework in a web api project using NuGet, enabling database data access and real time capabilities.

Implement the code-first approach with entity framework by creating a codes db context, and a quotes db set, then use a web api controller to perform CRUD operations.

Add and configure a connection string in web.config for the DbContext, specify the server and initial catalog, and verify data via a get request after seeding.

Learn how to handle get requests in asp.net and c#, implementing an overloaded get method to return all codes or a code by ID, using the db context and find.

Post a code object in the request body, add it with the db context, and save changes to create a database record. Verify with postman and a get request.

Learn to implement the put request in an ASP.NET API by locating a record with the first or default method, updating title, author, description, and saving changes via db context.

Handle delete requests by locating a quote by id, removing it with the db context, and saving changes. Validate with postman and verify deletion in the local sql database.

Learn how HTTP status codes serve as standard server responses to diagnose why web resources fail to load, and how to add status codes to your ASP.NET web API.

Learn to implement status codes in a asp.net rest api by returning IHttpActionResult, using ok, created, bad request, not found, and statusCode for other codes.

Content negotiation in ASP.NET Web API enables clients to request XML or JSON via the accept header, with media type formatters handling serialization and default JSON when unspecified.

Remove the XML formatter in the Web API config to return JSON by default, demonstrate Accept header behavior in browser and Postman, and enable indented JSON output with serializer settings.

Understand why code first migrations are needed when updating a model, and apply them to add a new string property named type without losing data, avoiding migration errors.

Enable code-first migrations in a Web API via the package manager console, add migrations, and update the database, with up and down methods for schema changes and created at fields.

Explore model validation in ASP.NET MVC and ASP.NET Web API to ensure only valid data enters the database; backend developers enforce correct data formats like phone numbers.

Apply data annotation validations in ASP.NET Web API to enforce required fields and string length, update models, perform model state checks, and ensure safe, valid post and put operations.

Learn how ASP.Net Web API maps http verbs to controller methods by default, and use http get/post/put/delete attributes to create custom method names and avoid errors.

Explore attribute routing in ASP.NET Web API by adding HTTP GET and route attributes to differentiate methods, override conventional routing with Web API config, and map api/codes and api/codes/test/{id} requests.

Learn sorting and filtering in ASP.NET Web APIs, using an AliExpress style price sort and date-based ordering, and see how to implement sorting in the course API in next module.

Implement sorting in the web api get method using a sort parameter and IQueryable to order by the createdat date property in ascending or descending.

Learn to implement paging in web APIs, slicing large data into chunks for diverse devices, with scroll and button pagination examples, focusing on back-end development.

Implement paging in web APIs by using skip and take with a sorted query, add http get routing, and apply default page number and page size for chunked data delivery.

Explore search functionality in web APIs and learn to implement a dropdown style search similar to Google and Facebook search bars using ASP.NET and C# REST APIs.

Implement backend search by filtering codes through a type query string, returning items whose type starts with the query value via a get endpoint with attribute routing.

Learn how to secure web APIs with token-based authentication and authorization, validating user identities and enforcing roles and permissions for resource access.

Create a new ASP.NET web API project with individual account authentication to secure the API using OAuth 2, store user profiles in SQL Server, leveraging built-in templates.

Registering users in the web api uses the account controller and a register binding model with email, password, and confirm password to create a new user with hashed password.

Learn to obtain and use access tokens via a post request to the token endpoint, configure grant types (password) in OAuth 2.0, and secure api calls with bearer tokens.

Create a rest api for courses with asp.net and c# by applying authentication and authorization, configuring db context and migrations, and using postman with access tokens for all crud operations.

Explore how caching stores frequently requested data in local memory to reduce api calls and boost performance, with browser and mobile caches using a 60-second ttl.

Install a NuGet package for web caching in asp.net, apply the output cache attribute to the get endpoint, and configure client and server timespans for caching in the web api.

Implement client side caching with a 60-second timespan, so browser stores get results for 60 seconds and data remains after server stop; note the need for server side caching next.

Understand server side caching by configuring a 60-second timespan. Observe that only one request reaches the server every 60 seconds, and subsequent requests load data from the cache.