Welcome to "Practical PayPal Integration in ASP.NET Core". This book will provide useful resources on PayPal Checkout and Subscriptions APIs and SDKs, as well as their applications in ASP.NET Core projects. I hope that this book will be useful for .NET programmers, software developers, and students of all skill levels, who are interested in integrating the PayPal REST APIs into their ASP.NET applications. You may often get confused with PayPal because there are so many frameworks and options to do the same thing. In fact, there are over 50 PayPal services, APIs, and SDKs out there – you just do not know which one is suitable for your applications. In this book, I will choose the latest PayPal products, services, APIs, and SDKs, and integrate them into your ASP.NET Core applications. Here are PayPal technologies that I plan to use: •PayPal Smart Payment Buttons – These new buttons, introduced in June 2018, provide a simplified and secure check out experience. They intelligently present the most relevant payment types to your shoppers automatically. •PayPal JavaScript SDK – This SDK integrates Smart Payment Buttons into your web site and renders them to a container DOM element. •PayPal Checkout .NET SDK – To simplify integrations, PayPal provides a .NET SDK for their Version 2 REST Payment API. Using the SDK over a direct integration allows the SDK to handle authentication on the server side for you. •PayPal Subscriptions API – I will implement a Subscriptions .NET SDK based on PayPal Version 1 Subscriptions REST API. This SDK allows you to easily integrate PayPal Subscriptions into .NET applications. In the first part of this book, I will explain how to use the PayPal Checkout .NET SDK to get start with the PayPal Version 2 Payments and Orders REST APIs. I will use various examples to demonstrate the procedures to complete a PayPal checkout transaction, including how to set up the development environment, how to integrate and render Smart Payment Buttons, how to create and manage orders, and how to capture and verify the transaction. In the second part of this book, I will switch to PayPal Subscriptions API. This API has not been ported to Version 2 yet, so we have to use Version 1 API for subscription. To make matters even worse, PayPal has never released a stable Subscriptions .NET SDK, which makes it difficult for .NET developers to integrate PayPal Subscriptions API into .NET and .NET Core applications. Therefore, I decide to implement a simple PayPal Subscriptions .NET SDK, which simply exposes various static methods that can be used to integrate PayPal Subscriptions API into .NET applications. I will use several examples to illustrate how to use this SDK to complete subscription transactions.

Embark on a Profound Journey to "Mastering ASP.NET" Web Development In a digital landscape driven by dynamic web applications, mastering the art of ASP.NET is essential for creating robust and interactive web solutions that engage users and empower businesses. "Mastering ASP.NET" is your ultimate guide to navigating the intricate world of web development using the powerful ASP.NET framework. Whether you're a seasoned developer or an aspiring coder, this book equips you with the knowledge and skills needed to excel in creating cutting-edge web applications. About the Book: "Mastering ASP.NET" takes you on a transformative journey through the intricacies of web development, from foundational concepts to advanced techniques. From front-end design to back-end functionality, this book covers it all. Each chapter is meticulously designed to provide both a deep understanding of the framework and practical applications in real-world scenarios. Key Features: · Foundational Understanding: Build a strong foundation by comprehending the core principles of ASP.NET, including MVC architecture, Razor syntax, and server controls. · Web Forms and MVC: Explore the different approaches to web development with ASP.NET, understanding the differences and choosing the best approach for your projects. · Data Binding and Models: Master data binding techniques, model binding, and working with data sources for creating dynamic and data-driven web applications. · User Interface Design: Dive into responsive design, CSS styling, client-side scripting, and creating visually appealing user interfaces. · Security and Authentication: Learn how to implement security measures, including user authentication, authorization, and protecting against common web vulnerabilities. · Web API and RESTful Services: Gain insights into building RESTful APIs, creating Web API controllers, and consuming APIs for seamless integration. · Entity Framework: Understand how to work with Entity Framework for data access and management, ensuring efficient database interactions. · Testing and Debugging: Explore strategies for testing and debugging ASP.NET applications, ensuring code quality and reliable performance. · Challenges and Trends: Discover challenges in web development, from cross-browser compatibility to scalability, and explore emerging trends shaping the future of ASP.NET development. Who This Book Is For: "Mastering ASP.NET" is designed for developers, programmers, web designers, students, and anyone passionate about web development. Whether you're aiming to enhance your skills or embark on a journey toward becoming an ASP.NET expert, this book provides the insights and tools to navigate the complexities of creating powerful web applications. © 2023 Cybellium Ltd. All rights reserved. www.cybellium.com

This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. Through four complete sprints, this book takes you through every step needed to build brand new cross-platform web apps with ASP.NET Core, and make them available on the Internet. You won't just master Microsoft's revolutionary open source ASP.NET Core technology: you'll learn how to integrate the immense power of MVC, Docker, Azure Web Apps, Visual Studio and Visual Studio Code, C#, JavaScript, TypeScript, and Entity Framework. Working through the authors' carefully designed sprints, you'll start with a blank canvas, move through software architecture and design, adjusting to user feedback, recovering from mistakes, builds, testing, deployment, maintenance, refactoring, and more. Along the way, you'll learn techniques for delivering state-of-the-art software to users more rapidly and repeatably than ever before.

Create fast, scalable, and high-performance applications with C# and ASP.NET Core About This Book Get first-principle coverage of the latest ASP.NET Core MVC Find out how to bring together the capabilities and features of both Angular 2 and ASP.NET Core Discover common areas you might encounter performance problems with and areas you don't need to worry about Who This Book Is For This book is for developers who want to learn to build web applications using ASP.NET Core, those who want to make a career building web applications using Microsoft technology, and those who are working on other web frameworks and want to learn ASP.NET Core. What You Will Learn Get to know the concepts of ASP.NET MVC Create a Controller with action methods Build a view using several features of the Razor View engine Construct a Model for ASP.NET Core MVC application Find out how the features of ASP.NET Core and Angular 2 perfectly complement each other Handle requests and actions using server-side and client-side Routing Create a Data Model using Entity Framework Core Learn how to use Angular 2 components and master directives Improve performance at the network level and I/O level, and how to optimize the application as a whole Monitor performance as part of Continuous Integration and regression testing In Detail ASP.NET Core is the new, open source, and cross-platform, web-application framework from Microsoft. ASP.NET Core MVC helps you build robust web applications using the Model-View-Controller design. This guide will help you in building applications that can be deployed on non-Windows platforms such as Linux. Starting with an overview of the MVC pattern, you will quickly dive into the aspects that you need to know to get started with ASP.NET. You will learn about the core architecture of model, view, and control. Integrating your application with Bootstrap, validating user input, interacting with databases, and deploying your application are some of the things that you will learn to execute with this fast-paced guide. You will test your knowledge as you build a fully working sample application using the skills you've learned throughout the book. Moving forward, this guide will teach you to combine the impressive capabilities of ASP.NET Core and Angular 2. Not only will you learn how Angular 2 can complement your .NET skills and toolkit, you'll also learn everything you need to build a complete, dynamic single-page application. Find out how to get your data model in place and manage an API, before styling and designing your frontend for an exceptional user experience. You will find out how to optimize your application for SEO, identify and secure vulnerabilities, and how to successfully deploy and maintain your application. From here, you will delve into the latest frameworks and software design patterns to improve your application performance. The course offers premium, highly practical content on the recently released ASP.NET Core, and includes material from the following Packt books: Learning ASP.NET Core MVC Programming, ASP.NET Core and Angular 2, and ASP.NET Core 1.0 High Performance. Style and approach This learning path takes a first-principles approach to help you understand and implement ASP.NET MVC solutions.

Backend design like you've never seen it before – a guide to building SOLID ASP.NET Core web apps that stand the test of time. Featuring more Minimal APIs, more testing, a new e-commerce project, and the modular monolith! Purchase of the print or Kindle book includes a free PDF eBook. Key Features Learn multiple ways to organize your application code and become a more flexible ASP.NET Core developer Explore hands-on design patterns, learn architectural principles, and how to sidestep anti-patterns Refactor code toward modern application design, such as feature-based vertical slice and clean architecture Book DescriptionThis unique ASP.NET Core book will fill in the gaps in your REST API and backend designs. Learn how to build robust, maintainable, and flexible apps using Gang of Four (GoF) design patterns and modern architectural principles. This new edition is updated for .NET 8 and focuses exclusively on the backend, with new content on REST APIs, the REPR pattern, and building modular monoliths. You’ll start by covering foundational concepts like REST, the SOLID principles, Minimal APIs, dependency injection in .NET, and other ASP.NET Core 8 mechanisms. Then, you’ll learn to develop components using design patterns, including many from the GoF. Finally, you’ll explore organizing your application code with patterns that vary from layers to feature-oriented vertical slice designs, covering CQS and a deep dive into microservices along the way. A brand-new e-commerce project at the end of the book will tie it all together. This how-to guide will teach you how to assemble your own APIs from building blocks, to suit whatever real-world requirements you may have.What you will learn Apply the SOLID principles for building flexible and maintainable software Test your apps effectively with automated tests, including black-box testing Embark on mastering ASP.NET Core dependency injection Work with GoF design patterns including strategy, decorator, facade, and composite Design REST APIs using Minimal APIs and ASP.NET Core MVC Discover layering and the tenets of clean architecture Use feature-oriented techniques as an alternative to layering Explore microservices, CQS, REPR, vertical slice architecture, and many more patterns Who this book is for This book is for intermediate-level ASP.NET Core developers who want to improve their C# app code structure and API design skills. ASP.NET developers who want to modernize their knowledge and enhance their technical architecture skills will also like this book. It’s also a good refresher for those in software design roles with more experience looking to update their expertise. A good knowledge of C# programming and a basic understanding of web concepts is necessary to get the most out of this book, though some refreshers are included along the way.

Develop web API applications using design patterns, advanced customization, and cutting-edge technologies, such as SignalR, gRPC, and GraphQL, while leveraging powerful cloud platforms and tools to accelerate development Key Features Gain proficiency in building modern ASP.NET Core web API applications Develop the skills to effectively test, debug, and secure your web API applications Streamline development workflows and boost productivity with cloud computing platforms and industry-standard CI/CD tools Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionWeb 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.What you will learn Build a strong foundation in web API fundamentals Explore the ASP.NET Core 8 framework and other industry-standard libraries and tools for high-performance, scalable web APIs Apply essential software design patterns such as MVC, dependency injection, and the repository pattern Use Entity Framework Core for database operations and complex query creation Implement robust security measures to protect against malicious attacks and data breaches Deploy your application to the cloud using Azure and leverage Azure DevOps to implement CI/CD Who this book is for This book is for developers who want to learn how to build web APIs with ASP.NET Core and create flexible, maintainable, scalable applications with .NET platform. Basic knowledge of C#, .NET, and Git will assist with understanding the concepts more easily.