Book Image

Hands-On Network Programming with C# and .NET Core

By : Sean Burns
Book Image

Hands-On Network Programming with C# and .NET Core

By: Sean Burns

Overview of this book

The C# language and the .NET Core application framework provide the tools and patterns required to make the discipline of network programming as intuitive and enjoyable as any other aspect of C# programming. With the help of this book, you will discover how the C# language and the .NET Core framework make this possible. The book begins by introducing the core concepts of network programming, and what distinguishes this field of programming from other disciplines. After this, you will gain insights into concepts such as transport protocols, sockets and ports, and remote data streams, which will provide you with a holistic understanding of how network software fits into larger distributed systems. The book will also explore the intricacies of how network software is implemented in a more explicit context, by covering sockets, connection strategies such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP), asynchronous processing, and threads. You will then be able to work through code examples for TCP servers, web APIs served over HTTP, and a Secure Shell (SSH) client. By the end of this book, you will have a good understanding of the Open Systems Interconnection (OSI) network stack, the various communication protocols for that stack, and the skills that are essential to implement those protocols using the C# programming language and the .NET Core framework.
Table of Contents (26 chapters)
Free Chapter
Section 1: Foundations of Network Architecture
Section 2: Communicating Over Networks
Section 3: Application Protocols and Connection Handling
Section 4: Security, Stability, and Scalability
Section 5: Advanced Subjects

Cracking open HTTP

In Chapter 3, Communication Protocols, we had a section, The application layer, where we looked at why certain protocols fell at that layer. With a little bit more exposure to the nitty-gritty details of network transactions under our belt, I'm hoping it will be easier to distinguish between the transport layer and the application layer. With HTTP, we have the best opportunity to explore that distinction. As a protocol, it has by far the broadest, and most robust, support from out-of-the-box C# libraries. That depth of in-language resources will give us a sharp lens through which to view the distinction between the application layer and its underlying transport layer. So, before we learn how to use HTTP, let's learn just exactly what it is.

The nature of...