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Web API Development with ASP.NET Core 8

Web API Development with ASP.NET Core 8

By : Yan
4.5 (16)
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Web API Development with ASP.NET Core 8

Web API Development with ASP.NET Core 8

4.5 (16)
By: Yan

Overview of this book

Web API applications have become increasingly significant in recent years, fueled by the ever-accelerating pace of technological advancements. However, with this rapid evolution comes the need to create web API apps that are not only functional but also adaptable, maintainable, and scalable to meet the demands of users and businesses alike. This book draws from the author’s immense technical expertise and decades of experience in software development to help you address this challenge head-on, equipping you with the knowledge and skills required to develop web API apps from scratch. By providing a deeper understanding of the various protocols implemented by ASP.NET Core, including RESTful, SignalR (WebSocket), gRPC, and GraphQL, supplemented by practical examples and optimization techniques, such as using middleware, testing, caching, and logging, this book offers invaluable insights for both newcomers as well as seasoned developers to meet modern web development requirements. Additionally, you’ll discover how to use cloud platforms such as Azure and Azure DevOps to enhance the development and operational aspects of your application. By the end of this book, you’ll be fully prepared to undertake enterprise-grade web API projects with confidence, harnessing the latest advancements in ASP.NET Core 8 to drive innovation.
Table of Contents (20 chapters)
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Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Conventions used
Get in touch
Share Your Thoughts
Download a free PDF copy of this book
1
Chapter 1: Fundamentals of Web APIs
Chapter 1: Fundamentals of Web APIs
What is a web API?
What is a REST API?
Designing a REST-based API
RPC and GraphQL APIs
Real-time APIs
Summary
Free Chapter
2
Chapter 2: Getting Started with ASP.NET Core Web APIs
Chapter 2: Getting Started with ASP.NET Core Web APIs
Technical requirements
Setting up the development environment
Creating a simple REST web API project
Building and running the project
Understanding the MVC pattern
Dependency injection
Introduction to minimal APIs
Summary
3
Chapter 3: ASP.NET Core Fundamentals (Part 1)
Chapter 3: ASP.NET Core Fundamentals (Part 1)
Technical requirements
Routing
Configuration
Environments
Summary
4
Chapter 4: ASP.NET Core Fundamentals (Part 2)
Chapter 4: ASP.NET Core Fundamentals (Part 2)
Technical requirements
Logging
Middleware
Summary
5
Chapter 5: Data Access in ASP.NET Core (Part 1: Entity Framework Core Fundamentals)
Chapter 5: Data Access in ASP.NET Core (Part 1: Entity Framework Core Fundamentals)
Technical requirements
Why use ORM?
Configuring the DbContext class
Implementing CRUD controllers
Basic LINQ queries
Configuring the mapping between models and database
Summary
6
Chapter 6: Data Access in ASP.NET Core (Part 2 – Entity Relationships)
Chapter 6: Data Access in ASP.NET Core (Part 2 – Entity Relationships)
Technical requirements
Understanding one-to-many relationships
Understanding one-to-one relationships
Understanding many-to-many relationships
Understanding owned entities
Summary
7
Chapter 7: Data Access in ASP.NET Core (Part 3: Tips)
Chapter 7: Data Access in ASP.NET Core (Part 3: Tips)
Technical requirements
Understanding DbContext pooling
Understanding the difference between tracking versus no-tracking queries
Understanding the difference between IQueryable and IEnumerable
Client evaluation versus server evaluation
Using raw SQL queries
Using bulk operations
Understanding concurrency conflicts
Reverse engineering
Other ORM frameworks
Summary
8
Chapter 8: Security and Identity in ASP.NET Core
Chapter 8: Security and Identity in ASP.NET Core
Technical requirements
Getting started with authentication and authorization
Delving deeper into authorization
Managing users and roles
New Identity API endpoints in ASP.NET Core 8
Understanding OAuth 2.0 and OpenID Connect
Other security topics
Summary
9
Chapter 9: Testing in ASP.NET Core (Part 1 – Unit Testing)
Chapter 9: Testing in ASP.NET Core (Part 1 – Unit Testing)
Technical requirements
Introduction to testing in ASP.NET Core
Writing unit tests
Testing the database access layer
Summary
10
Chapter 10: Testing in ASP.NET Core (Part 2 – Integration Testing)
Chapter 10: Testing in ASP.NET Core (Part 2 – Integration Testing)
Technical requirements
Writing integration tests
Testing with authentication and authorization
Code coverage
Summary
11
Chapter 11: Getting Started with gRPC
Chapter 11: Getting Started with gRPC
Technical requirements
Recap of gRPC
Setting up a gRPC project
Creating protobuf messages
Creating a protobuf service
Consuming gRPC services in ASP.NET Core applications
Updating proto files
Summary
12
Chapter 12: Getting Started with GraphQL
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Chapter 12: Getting Started with GraphQL
Technical requirements
Recap of GraphQL
Setting up a GraphQL API using HotChocolate
Adding mutations
Using variables in queries
Defining a GraphQL schema
Retrieving related objects using resolvers
Using data loaders
Dependency injection
Interface and union types
Filtering, sorting, and pagination
Visualizing the GraphQL schema
Summary
Further reading
13
Chapter 13: Getting Started with SignalR
Chapter 13: Getting Started with SignalR
Technical requirements
Recap of real-time web APIs
Setting up SignalR
Building SignalR clients
Using authentication and authorization in SignalR
Managing users and groups
Sending messages from other services
Configuring SignalR hubs and clients
Summary
14
Chapter 14: CI/CD for ASP.NET Core Using Azure Pipelines and GitHub Actions
Chapter 14: CI/CD for ASP.NET Core Using Azure Pipelines and GitHub Actions
Technical requirements
Introduction to CI/CD
Containerizing ASP.NET Core applications using Docker
CI/CD using Azure DevOps and Azure Pipelines
GitHub Actions
Summary
15
Chapter 15: ASP.NET Core Web API Common Practices
Chapter 15: ASP.NET Core Web API Common Practices
Technical requirements
Common practices of ASP.NET web API development
Optimizing the performance by implementing caching
Using HttpClientFactory to manage HttpClient instances
Summary
16
Chapter 16: Error Handling, Monitoring, and Observability
Chapter 16: Error Handling, Monitoring, and Observability
Technical requirements
Error handling
Health checks
Monitoring and observability
Summary
17
Chapter 17: Cloud-Native Patterns
Chapter 17: Cloud-Native Patterns
Technical requirements
Domain-driven design
Clean architecture
Microservices
Web API design patterns
Summary
18
Index
Index
Why subscribe?
19
Other Books You May Enjoy
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Setting up a GraphQL API using HotChocolate

To begin with, you can download the code example named SchoolManagement for this chapter from the chapter12\start folder. This sample project has some basic code for an AppDbContext class and a Teacher class, as well as some seed data. The Teacher class has the following properties:

public class Teacher{
    public Guid Id { get; set; }
    public string FirstName { get; set; } = string.Empty;
    public string LastName { get; set; } = string.Empty;
    public string Email { get; set; } = string.Empty;
    public string? Phone { get; set; }
    public string? Bio { get; set; }
}

You can open the project in VS Code or VS 2022. We will integrate HotChocolate into the project to create a GraphQL API following these steps:

  1. Add the HotChocolate.AspNetCore NuGet package to the project. This package contains the ASP...

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