Book Image

Learning ASP.NET Core 2.0

By : Jason De Oliveira, Michel Bruchet
Book Image

Learning ASP.NET Core 2.0

By: Jason De Oliveira, Michel Bruchet

Overview of this book

The ability to develop web applications that are highly efficient but also easy to maintain has become imperative to many businesses. ASP.NET Core 2.0 is an open source framework from Microsoft, which makes it easy to build cross-platform web applications that are modern and dynamic. This book will take you through all of the essential concepts in ASP.NET Core 2.0, so you can learn how to build powerful web applications. The book starts with a brief introduction to the ASP.NET Core framework and the improvements made in the latest release, ASP.NET Core 2.0. You will then build, test, and debug your first web application very quickly. Once you understand the basic structure of ASP.NET Core 2.0 web applications, you'll dive deeper into more complex concepts and scenarios. Moving on, we'll explain how to take advantage of widely used frameworks such as Model View Controller and Entity Framework Core 2 and you'll learn how to secure your applications. Finally, we'll show you how to deploy and monitor your applications using Azure, AWS, and Docker. After reading the book, you'll be able to develop efficient and robust web applications in ASP.NET Core 2.0 that have high levels of customer satisfaction and adoption.

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Table of Contents (19 chapters)
Title Page
Title Page
Credits
Credits
Foreword
Foreword
About the Authors
About the Authors
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
What is ASP.NET Core 2.0?
What is ASP.NET Core 2.0?
ASP.NET Core 2.0 features
Cross-platform support
Microservice architecture
Working with Docker and containers
Performance and scalability
Side-by-side deployments
Technology restrictions
When to choose ASP.NET Core 2.0
Summary
2
Setting Up the Environment
Setting Up the Environment
Visual Studio 2017 as a development environment
How to install Visual Studio 2017 Community Edition
Visual Studio Code as a development environment
How to install Visual Studio Code on Linux
Summary
3
Creating a Continuous Integration Pipeline in VSTS
Creating a Continuous Integration Pipeline in VSTS
Continuous integration, continuous deployment, and build and release pipelines
Organizing your work via work items
Using Git as a version control system
Creating a VSTS build pipeline
Creating a VSTS release pipeline
Summary
4
Basic Concepts of ASP.NET Core 2.0 - Part 1
Basic Concepts of ASP.NET Core 2.0 - Part 1
Building the Tic-Tac-Toe game
Targeting different .NET Framework versions in the .csproj files of your projects
Using the Microsoft.AspNetCore.All metapackage
Working with the Program class
Working with the Startup class
Giving your web pages a more modern look by using Bower and layout pages
Using dependency injection for encouraging loose coupling within your applications
Working with middlewares
Working with static files
Using routing, URL redirection, and URL rewriting
Adding error handling to your applications
Summary
5
Basic Concepts of ASP.NET Core 2.0 - Part 2
Basic Concepts of ASP.NET Core 2.0 - Part 2
Client-side development using JavaScript
Optimizing your web applications and using bundling and minification
Working with WebSockets for real-time communication scenarios
Taking advantage of session and user cache management
Applying globalization and localization for multi-lingual user interfaces
Configuring your applications and services
Using logging
Implementing advanced dependency injection concepts
Building once and running on multiple environments
Summary
6
Creating MVC Applications
Creating MVC Applications
Understanding the Model View Controller pattern
Creating dedicated layouts for multiple devices
Using View Pages, Partial Views, View Components, and Tag Helpers
Dividing web applications into multiple Areas
Applying advanced concepts
Summary
7
Creating Web API Applications
Creating Web API Applications
Applying Web API concepts and best practices
Summary
8
Accessing Data using Entity Framework Core 2
Accessing Data using Entity Framework Core 2
Getting started with Entity Framework Core 2
Summary
9
Securing ASP.NET Core 2.0 Applications
Securing ASP.NET Core 2.0 Applications
Implementing authentication
Summary
10
Hosting and Deploying ASP.NET Core 2.0 Applications
Hosting and Deploying ASP.NET Core 2.0 Applications
Hosting applications
Deploying applications in Amazon Web Services
Deploying applications in Microsoft Azure
Deploying applications into Docker containers
Summary
11
Managing and Supervising ASP.NET Core 2.0 Applications
Managing and Supervising ASP.NET Core 2.0 Applications
Logging in ASP.NET Core 2.0 applications
Monitoring ASP.NET Core 2.0 applications
Summary

Adding error handling to your applications

When developing applications, the question is not if errors and bugs will occur, but when they will occur. Building applications is a very complex task and it is nearly impossible to think about all of the cases that might occur during runtime. And even if you think you have thought about everything, then the environment is not behaving as expected, for example, a service is not available or processing a request is taking much more time than expected.

You have two solutions to this problem, which need to be applied at the same time—unit tests and error handling. Unit tests will assure the correct behavior during development time from an application point of view, while error handling helps you to be prepared during runtime for environmental issues. We are going to look at how to add efficient error handling to your ASP.NET Core 2.0 applications in this section.

By default, if there is no error handling at all and if an exception occurs, your application...

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