Book Image

Go: Building Web Applications

By : Nathan Kozyra, Mat Ryer
Book Image

Go: Building Web Applications

By: Nathan Kozyra, Mat Ryer

Overview of this book

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software. It is a statically typed language with syntax loosely derived from that of C, adding garbage collection, type safety, some dynamic-typing capabilities, additional built-in types such as variable-length arrays and key-value maps, and a large standard library. This course starts with a walkthrough of the topics most critical to anyone building a new web application. Whether it’s keeping your application secure, connecting to your database, enabling token-based authentication, or utilizing logic-less templates, this course has you covered. Scale, performance, and high availability lie at the heart of the projects, and the lessons learned throughout this course will arm you with everything you need to build world-class solutions. It will also take you through the history of concurrency, how Go utilizes it, how Go differs from other languages, and the features and structures of Go's concurrency core. It will make you feel comfortable designing a safe, data-consistent, and high-performance concurrent application in Go. This course is an invaluable resource to help you understand Go's powerful features to build simple, reliable, secure, and efficient web applications.
Table of Contents (6 chapters)

Chapter 4. Data Integrity in an Application

By now, you should be comfortable with the models and tools provided in Go's core to provide mostly race-free concurrency.

We can now create goroutines and channels with ease, manage basic communication across channels, coordinate data without race conditions, and detect such conditions as they arise.

However, we can neither manage larger distributed systems nor deal with potentially lower-level consistency problems. We've utilized a basic and simplistic mutex, but we are about to look at a more complicated and expressive way of handling mutual exclusions.

By the end of this chapter, you should be able to expand your concurrency patterns from the previous chapter into distributed systems using a myriad of concurrency models and systems from other languages. We'll also look—at a high level—at some consistency models that you can utilize to further express your precoding strategies for single-source and distributed...