ASP.NET Core 9 Web API Cookbook

Name: ASP.NET Core 9 Web API Cookbook | Over 60 hands-on recipes for building and securing enterprise web APIs with REST, GraphQL, and more
Brand: Packt Publishing
Price: 28.99 EUR
Availability: OnlineOnly

Over 60 hands-on recipes for building and securing enterprise web APIs with REST, GraphQL, and more

Luke Avedon Garry Cabrera(Autor*in)

Packt Publishing

1. Auflage

Erschienen am 24. April 2025

344 Seiten

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978-1-83588-035-7 (ISBN)

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Beschreibung

Embrace the future of web API development with ASP.NET Core 9-from REST best practices to real-time SignalR, and from HybridCache to .NET Aspire deployment-through hands-on recipes and proven methodologies

Key Features

Master the lifecycle of ASP.NET Core web APIs by confidently building, testing, monitoring, and securing your applications
Explore advanced topics like GraphQL, SignalR, and microservices to create feature-rich APIs
Discover cloud deployment strategies to ensure your APIs are ready for modern infrastructure
Purchase of the print or Kindle book includes a free PDF eBook

Book Description

Discover what makes ASP.NET Core 9 a powerful and versatile framework for building modern web APIs that are both scalable and secure. This comprehensive, recipe-based guide leverages the authors' decade-long experience in software development to equip developers with the knowledge to create robust web API solutions using the framework's most powerful features.
Designed for intermediate to advanced .NET developers, this cookbook contains hands-on recipes that demonstrate how to efficiently build, optimize, and secure APIs using this cutting-edge technology. You'll master essential topics, such as creating RESTful APIs, implementing advanced data access strategies, securing your APIs, creating custom middleware, and enhancing your logging capabilities. The book goes beyond traditional API development by introducing GraphQL, SignalR, and gRPC, offering insights into how these technologies can extend the reach of your APIs. To prepare you for real-world challenges, the recipes cover testing methodologies, cloud deployment, legacy system integration, and advanced concepts like microservices and Hangfire.
By the end of this book, you'll gain the expertise needed to build and manage enterprise-grade web APIs with ASP.NET Core 9.

What you will learn

Implement HybridCache with stampede protection to replace distributed and in-memory caches
Perform unit, integration, and contract testing to ensure robustness and reliability
Optimize API performance using output and response caching with tag-based invalidation
Design custom middleware for rate limiting, centralized exception handling, health checks, and more
Streamline API troubleshooting using Serilog's structured logging and Seq's powerful log visualization for quick insights
Secure your APIs with authentication, authorization, and HTTPS enforcement

Who this book is for

This book is for intermediate to advanced developers-whether you're a .NET, backend, full-stack, or DevOps professional-looking to build and secure APIs with ASP.NET Core. It's also ideal for those experienced in Java or Go who want to transition to ASP.NET Core, or developers familiar with C# and .NET aiming to deepen their API skills. A working knowledge of web APIs and the .NET ecosystem is assumed, so you can jump straight into practical recipes

Weitere Details

Weitere Ausgaben

Inhalt

Cover
Title Page
Copyright and Credits
Dedication
Contributors
Table of Contents
Preface
Chapter 1: Practical Data Access in ASP.NET Core Web APIs
Technical requirements
Creating a mock database for EF Core with Bogus
Getting ready
How to do it.
How it works.
See also...
Using ProblemDetails to return more robust error information
Getting ready
How to do it.
How it works.
See also
Creating a categories endpoint using the new LINQ CountBy() method
Getting ready
How to do it.
How it works.
Implementing KeySet pagination
Getting ready
How to do it.
How it works.
See also
Configuring a CORS policy to expose pagination metadata
Getting ready
How to do it.
How it works.
Implementing efficient first- and last-page access with EF Core
Getting ready
How to do it.
How it works.
See also
Testing the API in PowerShell
Getting ready
How to do it.
How it works.
Using the new AggregateBy LINQ method to return the average price per category
Getting ready
How to do it.
How it works.
See also
Chapter 2: Mastering Resource Creation and Validation
Technical requirements
Model validation with data annotations
Getting ready
How to do it.
How it works.
Creating a custom validation attribute
Getting ready
How to do it.
How it works.
Implementing complex validation logic with IValidateObject
Getting ready
How to do It.
How it works.
Creating complex validation rules with FluentValidation
Getting ready
How to do it.
How it works.
See also
Updating resources with PUT and AutoMapper
Getting ready
How to do it.
How it works.
Managing cascade delete with AutoMapper
Getting ready
How to do it.
How it works.
Updating specific model fields with PATCH and JsonPatchDocument
Getting ready
How to do it.
How it works.
See also
Chapter 3: Securing Your Web API
Technical requirements
Rejecting HTTP requests with custom ProblemDetails middleware
Getting ready
How to do it.
How it works.
Setting up HTTPS on a custom domain - creating a self-signed certificate with PowerShell
Getting ready
How to do it.
How it works...
See also.
Setting up ASP.NET Core Identity
Getting ready.
How to do it.
How it works.
Using cookie authentication in ASP.NET Core Web API
Getting ready.
How to do it.
How it works.
JWT authentication with Identity
Getting ready.
How to do it.
How it works.
Implementing policy-based and role-based authentication
Getting ready.
How to do it.
How it works.
See also...
Learn more on Discord
Chapter 4: Creating Custom Middleware
Technical requirements
Building a health report for your API
Getting ready
How to do it.
How it works.
Adding health checks to OpenAPI using the new document transformers
Getting ready
How to do it.
How it works.
See also.
Creating a custom database performance health check
Getting ready
How to do it.
How it works.
Creating custom middleware for adding security headers
Getting ready
How to do it.
How it works.
Creating factory middleware for centralized data transformation
Getting ready
How to do it.
How it works.
Chapter 5: Creating Comprehensive Logging Solutions
Technical requirements
Logging all requests with Serilog and Seq
Getting ready
How to do it.
How it works.
Improving request logs with custom DiagnosticContext properties
Getting ready
How to do it.
How it works.
Logging controller and action method names
Getting ready
How to do it.
How it works.
See also
Unified request logging - combining ASP.NET Core's HttpLogging with Serilog and Seq
Getting ready
How to do it...
How it works.
Crafting Serilog log objects in ASP.NET Core controllers
Getting ready
How to do it.
How it works.
See also
Configuring Seq and Serilog with an API Key
Getting ready
How to do it.
How it works.
See also
Chapter 6: Real-Time Communication with SignalR
Technical requirements
Creating a real-time opinion poll in SignalR
Getting ready
How to do it.
How it works.
JWT authentication flow - identity from controller login to SignalR connection
Getting ready
How to do it.
How it works.
Invoking a hub method from an HTTP controller - announcing user login
Getting ready
How to do it.
How it works.
User customization with IUserIdProvider
Getting ready
How to do it.
How it works.
Sending direct messages via SignalR
Getting ready
How to do it.
How it works.
Implementing admin-controlled group management in SignalR
Getting ready
How to do it.
How it works.
Learn more on Discord
Chapter 7: Building Robust API Tests: a Guide to Unit and Integration Testing
Technical requirements
Unit testing an API service method with xUnit
Getting ready
How to do it.
How it works.
Unit testing with AutoFixture, NSubstitute, and FluentAssertions
Getting ready
How to do it.
How it works.
See also.
Organizing unit tests with a base service class
Getting ready
How to do it.
How it works.
Testing pagination with custom UrlHelper and NSubstitute
Getting ready
How to do it.
How it works.
Controller unit tests with custom fixtures
Getting ready
How to do it.
How it works.
Web API integration testing
Getting ready
How to do it.
How it works.
Authentication in integration testing
Getting ready
How to do it.
How it works.
See also.
Chapter 8: GraphQL: Designing Flexible and Efficient APIs
Technical requirements
Real-time updates via GraphQL subscriptions
Getting ready
How to do it.
How it works.
Mutations for modifying data in GraphQL
Getting ready
How to do it.
How it works.
Implementing efficient pagination in GraphQL
Getting ready
How to do it.
How it works.
Filtering and sorting with GraphQL
Getting ready
How to do it.
How it works.
Distributed GraphQL with Hot Chocolate Fusion
Getting ready
How to do it.
How it works.
Chapter 9: Deploying and Managing Your WebAPI in the Cloud
Technical requirements
Building with Azure - core service integration through geolocation
Getting ready.
How to do it.
How it works.
Azure Key Vault - securing configuration with custom health checks
Getting ready.
How to do it.
How it works.
Creating an API gateway with a YARP reverse proxy and a custom load-balancing policy
Getting ready.
How to do it.
How it works.
Migrating a distributed API to .NET Aspire for unified orchestration and monitoring
Getting ready.
How to do it.
How it works.
Integrating dockerized services with .NET Aspire - an example with Prometheus
Getting ready.
How to do it.
How it works.
Learn more on Discord
Chapter 10: The Craft of Caching
Technical requirements
Manual client-side response caching with HTTP headers
Getting ready
How to do it.
How it works.
Validating client-side cache with Last-Modified headers
Getting ready
How to do it.
How it works.
There's more.
Client-side ETag cache validation with the ResponseCache attribute
Getting ready
How to do it.
How it works.
See also
Output caching with Aspire Redis
Getting ready
How to do it.
How it works.
Server-side caching with IDistributedCache and Redis via .NET Aspire
Getting ready
How to do it...
How it works...
Using the new HybridCache library to simplify distributed caching
Getting ready
How to do it..
How it works.
See also
Chapter 11: Beyond the Core
Technical requirements
Microservice communication via gRPC and .NET Aspire
Getting ready
How to do it.
How it works.
Implementing bidirectional streaming with gRPC in .NET Aspire
Getting ready
How to do it.
How it works.
Implementing real-time updates with Dapr pub/sub in .NET Aspire
Getting ready
How to do it.
How it works.
Sharing state between services with Dapr state stores
Getting ready
How to do it.
How it works.
Index
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