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.

This book provides comprehensive details of developing ultra-modern, responsive single-page applications (SPA) for quantitative finance using ASP.NET Core and Angular. It pays special attention to create distributed web SPA applications and reusable libraries that can be directly used to solve real-world problems in quantitative finance. The book contains: Overview of ASP.NET Core and Angular, which is necessary to create SPA for quantitative finance. Step-by-step approaches to create a variety of Angular compatible real-time stock charts and technical indicators using ECharts and TA-Lib. Introduction to access market data from online data sources using .NET Web API and Angular service, including EOD, intraday, real-time stock quotes, interest rates. Detailed procedures to price equity options and fixed-income instruments using QuantLib, including European/American/Barrier/Bermudan options, bonds, CDS, as well as related topics such as cash flows, term structures, yield curves, discount factors, and zero-coupon bonds. Detailed explanation to linear analysis and machine learning in finance, which covers linear regression, PCA, KNN, SVM, and neural networks. In-depth descriptions of trading strategy development and back-testing for crossover and z-score based trading signals.

Need to sell products or services online using your personal or commercial application? In this course, learn how to implement payment gateways in ASP.NET Core apps using two popular payment services: Stripe and Braintree. Using real-world examples, instructor Ervis Trupja explains what payment gateways are and why you'd want to use one versus creating your own payments system. Ervis then delves into how to use the Braintree payment gateway to process credit card and PayPal transactions, as well as how to leverage Stripe to offer subscription-based payments to users. Plus, he explains how to create a custom Stripe admin dashboard where you can easily manage your account.

If your web application's success depends on how quickly and easily users can make transactions, then PayPal is a solution you can't afford to overlook. This book helps you determine which PayPal option is best for your situation, and provides step-by-step instructions for implementing the payment method you choose—whether you're accepting money via the Web or mobile devices for products and services, donations, or anything else. You'll find sample code written primarily in PHP and Objective-C, as well as use cases for executing options with PayPal's API. By the end of this book, you'll have a clear understanding of PayPal and how you can get the most out of its powerful features, no matter how much API programming experience you have. Learn how to work with the PayPal API, and choose the right integration method for your project Explore PayPal’s Express Checkout option, including its unique workflow and four methods of operation Examine the Website Payment Pro method—with a focus on direct payments Consider Adaptive Payments and learn how to set permission levels for their use Use PayPal in your iOS or Android-based mobile app with the new Mobile Express Checkout method Test your PayPal implementation with the sandbox

Now in its 8th edition, Pro ASP.NET Core has been thoroughly updated for ASP.NET Core 3 and online for ASP.NET Core 5 and .NET 5.0. This comprehensive, full-color guide is the only book you need to learn ASP.NET Core development. Professional developers get ready to produce leaner applications for the ASP.NET Core platform. This edition puts ASP.NET Core 3 into context, and takes a deep dive into the tools and techniques required to build modern, extensible web applications. New features and capabilities such as MVC 3, Razor Pages, Blazor Server, and Blazor WebAssembly are covered, along with demonstrations of how they can be applied in practice. Following the same popular format and style found in previous editions, author Adam Freeman explains how to get the most out of ASP.NET Core 3. Starting with the nuts-and-bolts topics, he teaches readers about middleware components, built-in services, request model binding, and more. Moving along, he introduces increasingly more complex topics and advanced features, including endpoint routing and dependency injection. Written for professionals wanting to incorporate the latest functionality of ASP.NET Core 3 into their projects, this book also serves as a complete reference on ASP.NET Core. Beginners with some background in Microsoft web development will also greatly benefit from the in-depth coverage provided throughout. What You Will Learn: Build a solid foundation and skill set for working with the entire ASP.NET Core platformApply ASP.NET Core 3 and ASP.NET Core 5 features in your developer environment; plentiful reusable templatesSee how to create RESTful web services, web applications, and client-side applicationsLeverage existing knowledge to efficiently get up and running with new programming models Adam Freeman is an experienced IT professional who has held senior positions in a range of companies, most recently serving as chief technology officer and chief operating officer of a global bank. Now retired, he spends his time writing and long-distance running. “The Rolls-Royce of ASP.NET books, (or if you’re American, the Cadillac). Very thorough!” Les Jackson, MCSD, DotNet Playbook “The author’s instruction is direct, easy to understand and supplemented with clear code examples... Whether you are a beginner learning ASP.NET Core 3.1 app development, or an experienced professional ready to master advanced concepts, I consider this book a 'must have' for you!" Jeremy Likness, Senior Program Manager, Microsoft “...the best single resource for teaching MVC web apps using ASP.NET. “ Charles Carter, MSCS, MSwE, JD, Cloud Application Development Instructor, Microsoft Software and Systems Academy

Now in its tenth edition, this industry-leading guide to ASP.NET Core teaches everything you need to know to create easy, extensible, and cloud-native web applications. Inside Pro ASP.NET Core 7 you will learn how to: Configure the ASP.NET Core request pipeline to handle requests Create RESTful web services with MVC controllers Create HTML responses with Razor and Razor Pages Create richly interactive web applications with Blazor Access data using Entity Framework Core Authenticate requests using ASP.NET Core Identity Pro ASP.NET Core is an acclaimed bestseller, and a bible for .NET web developers. Tens of thousands of readers have benefited from its comprehensive coverage of ASP.NET’s key tools and techniques. Now in its tenth edition, this revised guide has been fully updated to .NET 7, with extensive chapters on Razor Pages, Blazor, and the MVC framework. It maintains the style and structure of popular previous editions, with content updated for ASP.NET Core’s latest evolution. About the technology ASP.NET Core 7 gives you everything you need to create awesome web apps in C#. This powerful framework handles anything you throw at it, from high-volume HTTP requests and RESTful web services, to efficient HTML and CSS round trips and WebAssembly for rich user interactions. About the book Pro ASP.NET Core 7 is the industry-leading guide to building web applications with ASP.NET Core. In it, you’ll build a realistic online store as you learn about web services, authentication and authorization, container deployment, and more. Author Adam Freeman’s comfortable style mentors you through advanced topics like RESTful web services, Razor Pages for HTML responses, and data access with Entity Framework Core. Engaging hands-on examples show you how each tool works in action. About the reader For web developers experienced with C# and the basics of .NET. About the author Adam Freeman has written over a dozen bestselling books on software development. He has held numerous senior IT positions, most recently as CTO and COO of a global bank. The technical editor on this book is Fabio Claudio Ferracchiati. Table of Contents 1 Putting ASP.NET Core in context Part 1 2 Getting started 3 Your first ASP.NET Core application 4 Using the development tools 5 Essential C# features 6 Testing ASP.NET Core applications 7 SportsStore: A real application 8 SportsStore: Navigation and cart 9 SportsStore: Completing the cart 10 SportsStore: Administration 11 SportsStore: Security and deployment Part 2 12 Understanding the ASP.NET Core platform 13 Using URL routing 14 Using dependency injection 15 Using the platform features, part 1 16 Using the platform features, part 2 17 Working with data Part 3 18 Creating the example project 19 Creating RESTful web services 20 Advanced web service features 21 Using controllers with views, part I 22 Using controllers with views, part II 23 Using Razor Pages 24 Using view components 25 Using tag helpers 26 Using the built-in tag helpers 27 Using the forms tag helpers 28 Using model binding 29 Using model validation 30 Using filters 31 Creating form applications Part 4 32 Creating the example project 33 Using Blazor Server, part 1 34 Using Blazor Server, part 2 35 Advanced Blazor features 36 Blazor forms and data 37 Using Blazor WebAssembly 38 Using ASP.NET Core Identity 39 Applying ASP.NET Core Identity

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