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C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals

By : Mark J. Price
4.4 (74)
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C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals

4.4 (74)
By: Mark J. Price

Overview of this book

This latest edition of the bestselling Packt series will give you a solid foundation to start building projects using modern C# and .NET with confidence. You'll learn about object-oriented programming; writing, testing, and debugging functions; and implementing interfaces. You'll take on .NET APIs for managing and querying data, working with the fi lesystem, and serialization. As you progress, you'll explore examples of cross-platform projects you can build and deploy, such as websites and services using ASP.NET Core. This latest edition integrates .NET 8 enhancements into its examples: type aliasing and primary constructors for concise and expressive code. You'll handle errors robustly through the new built-in guard clauses and explore a simplified implementation of caching in ASP.NET Core 8. If that's not enough, you'll also see how native ahead-of-time (AOT) compiler publish lets web services reduce memory use and run faster. You'll work with the seamless new HTTP editor in Visual Studio 2022 to enhance the testing and debugging process. You'll even get introduced to Blazor Full Stack with its new unified hosting model for unparalleled web development flexibility.
Table of Contents (18 chapters)
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17
Index

Documenting and testing web services

You can easily test a web service by making HTTP GET requests using a browser. To test other HTTP methods, we need a more advanced tool.

Testing GET requests using a browser

You will use Chrome to test the three implementations of a GET request—for all customers, for customers in a specified country, and for a single customer using their unique customer ID:

  1. Start the Northwind.WebApi web service project using the https launch profile.
  2. Start Chrome, navigate to https://localhost:5151/api/customers, and note the JSON document returned, containing all 91 customers in the Northwind database (unsorted), as shown in Figure 14.2:

Figure 14.2: Customers from the Northwind database as a JSON document

  1. Navigate to https://localhost:5151/api/customers?country=Germany and note the JSON document returned, containing only the customers in Germany.

    If you get an empty array returned, then make...

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