Book Image

Go Cookbook

By : Aaron Torres
Book Image

Go Cookbook

By: Aaron Torres

Overview of this book

Go (a.k.a. Golang) is a statically-typed programming language first developed at Google. It is derived from C with additional features such as garbage collection, type safety, dynamic-typing capabilities, additional built-in types, and a large standard library. This book takes off where basic tutorials on the language leave off. You can immediately put into practice some of the more advanced concepts and libraries offered by the language while avoiding some of the common mistakes for new Go developers. The book covers basic type and error handling. It explores applications that interact with users, such as websites, command-line tools, or via the file system. It demonstrates how to handle advanced topics such as parallelism, distributed systems, and performance tuning. Lastly, it finishes with reactive and serverless programming in Go.
Table of Contents (14 chapters)

Performing async operations with sync.WaitGroup

Sometimes, it is useful to perform a number of operations asynchronously, then wait till they complete before moving on. For example, if an operation requires pulling information from multiple APIs and aggregate that information, it can be helpful to make those client requests asynchronously. This chapter will explore using sync.WaitGroup to orchestrate non-dependent tasks in parallel.

Getting ready

Refer to the Getting ready section of the Using channels and the select statement recipe in this chapter.

How to do it...

These...