book

.NET in Action, Second Edition

Name: .NET in Action, Second Edition
Author: Dustin Metzgar
ISBN: 9781633439313

by Dustin Metzgar

July 2024

Intermediate to advanced

360 pages

9h 45m

English

Manning Publications

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Praise for the first edition
.NET in Action, Second Edition
Copyright
contents
front matter
forewordprefaceacknowledgmentsabout this bookWho should read this bookHow this book is organized: A road mapAbout the codeliveBook discussion forumabout the authorabout the cover illustration
Part 1. The basics
1 Why .NET?
1.1 What is .NET?1.2 Where is .NET used?1.2.1 .NET in gaming and 3D graphics1.2.2 Popular .NET open source projects1.3 When to use .NET1.4 What will I learn from this book?1.5 What is in the .NET runtime?1.5.1 Intermediate language1.5.2 JIT compilation1.5.3 Garbage collectionSummary
2 Building a console application
2.1 Creating new applications from templates2.2 Building and running2.3 Writing code2.4 Namespaces and conventions2.5 Global using statements2.6 Static using statements2.7 Handling more command-line arguments2.8 C# properties2.8.1 Reflection2.8.2 Interpolated strings2.8.3 Null operators2.8.4 Casting objects to typesSummary
3 Creating web ser vices and applications with ASP.NET Core
3.1 Web services3.1.1 Adding a service that responds with a collection of data3.1.2 Controlling the response3.2 Web applications3.2.1 Razor pages3.2.2 Code-behindSummary
Part 2. Data

4 File and network I/O
4.1 Reading and writing files4.1.1 Building a custom template4.1.2 Finding files in folders4.1.3 Finding text in a file4.1.4 Disposing the StreamReader with using4.1.5 Parsing command-line arguments4.2 Working with JSON4.2.1 Reading JSON documents4.2.2 Writing JSON documents4.2.3 JSON serialization4.3 Making HTTP requests4.4 Unblocking programs with asynchronous programmingSummary
5 Using Entity Framework Core with relational databases
5.1 Storing application data5.2 Building your first EF Core application5.2.1 Object-creation shorthand5.2.2 Cleaning up the compiler warnings5.2.3 Creating a relationship5.3 Accessing data asynchronously5.4 Using EF Core with ASP.NET Core5.4.1 Request methods5.5 Exposing your API via Swagger/OpenAPISummary
Part 3. Testing
6 Unit-testing fundamentals
6.1 Writing code that’s easier to test6.2 SOLID principles6.2.1 S: Single responsibility principle6.2.2 O: Open/closed principle6.2.3 L: Liskov substitution principle6.2.4 I: Interface segregation principle6.2.5 D: Dependency inversion principle6.3 An example test application: Sodoku6.4 Building your first xUnit test project6.5 Fact tests6.6 Theory tests6.6.1 Applying SOLID principles to SudokuSolver6.6.2 Testing for exceptions6.6.3 Theory testing with MemberDataSummary
7 Substituting dependencies in tests
7.1 Testing code that relies on the current time7.2 Testing code that uses Streams7.2.1 Memory stream7.2.2 File stream from copied files7.2.3 Manifest resource streams7.3 Finding easier ways to write large strings7.4 Replacing dependencies with fakes7.4.1 Considering an example repository design pattern7.4.2 Setting up the unit-test class7.4.3 Validating faked method calls7.4.4 Verifying the number and order of calls7.4.5 Throwing exceptions from fakesSummary
8 Integration testing
8.1 Applications with many dependencies8.2 Testing with an in-memory database8.3 Testing HTTP calls8.4 Broader integration tests8.5 Integration-testing ASP.NET Core APIsSummary
Part 4. Getting ready for release
9 Security
9.1 Securing applications9.2 Threat modeling9.3 Setting up HTTPS9.4 Checking for SQL injection vulnerability9.4.1 Adding an interceptor9.4.2 Configuring the connection string safely9.5 ASP.NET Core Identity9.5.1 Setting up Microsoft authentication9.5.2 Authenticating with Swagger UI9.6 AuthorizationSummary
10 Performance and profiling
10.1 Why test performance?10.2 Introduction to BenchmarkDotNet10.3 Profiles10.3.1 Capturing profiles with BenchmarkDotNet10.3.2 Analyzing profiles10.3.3 Using PerfView10.3.4 Understanding garbage collection10.4 Web performance testingSummary
11 Handling failures
11.1 Operating in the real world11.2 EF Core11.2.1 Database transactions11.2.2 Retrying on transient faults11.3 Polly11.3.1 Simulating HTTP errors11.3.2 Other Polly capabilitiesSummary
12 Building world-ready applications
12.1 Creating the sample application12.2 Getting resource strings12.3 Adding resource languages12.4 ASP.NET Core’s built-in culture support12.5 Internationalization12.5.1 Globalization12.5.2 Localizability review12.5.3 Testing right-to-left languages12.5.4 Other considerations for globalizationSummary
13 Working with containers
13.1 Why use containers?13.2 Container landscape13.3 Building a container image13.3.1 Using .NET 6 and earlier or custom Dockerfile13.3.2 Using .NET 7 and later13.4 Configuration13.4.1 Controlling the .NET environment13.4.2 Configuration order13.4.3 Hierarchical configuration13.4.4 Applying configuration in Docker Desktop13.4.5 Mapping configuration to objects13.5 SecretsSummary
Appendix A. .NET history
A.1 Adoption of .NET CoreA.2 .NET 5/6 and the late majorityA.3 A brief introduction to ASP.NET Core
Appendix B. Setting up your development environment
Appendix C. MAUI and Blazor
C.1 MAUIC.2 Blazor
Appendix D. The async state machine
Appendix E. Testing internal members
Appendix F. xUnit supplement
F.1 TraitsF.2 Collections
index

Content preview from .NET in Action, Second Edition

11 Handling failures

This chapter covers

Making transactional database updates
Retrying Entity Framework Core operations
Using Polly to retry operations

Code can fail for many reasons. Maybe a dependency isn’t responding, or something else has a lock on a resource you want. Your customers may have found an unexpected way to use your application or hit corner cases you didn’t anticipate. If we adopt a mindset that our code will fail, we can move to adopt strategies that handle failures well. In this chapter, we’ll look at common .NET tools and techniques that isolate problems, retry, and compensate.

11.1 Operating in the real world

Sometimes, it seems that the things we build today don’t last long. Even though it’s only 20 years old, my driveway ...

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.NET in Action, Second Edition

by Dustin Metzgar

11 Handling failures

11.1 Operating in the real world

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.