In a language like Go, where you have build in asynchronous operations and parallelism, it becomes important to consider things such as thread safety. For example, it is dangerous to access a map from multiple goroutines simultaneously. Go provides a number of helpers in the sync and sync/atomic packages to make sure that certain events occur only once or that goroutines can serialize on an operation.
This recipe will demonstrate the use of these packages to safely modify a map with various goroutines and to keep a global ordinal value that can be safely accessed by numerous goroutines. It will also showcase the Once.Do method, which can be used to ensure that something is only done by a Go application once, such as reading a config or initializing a variable.
Go Cookbook
By :
Go Cookbook
By:
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)
Preface
Free Chapter
I/O and File Systems
Command-Line Tools
Data Conversion and Composition
Error Handling in Go
All about Databases and Storage
Web Clients and APIs
Microservices for Applications in Go
Testing
Parallelism and Concurrency
Distributed Systems
Reactive Programming and Data Streams
Serverless Programming
Performance Improvements, Tips, and Tricks
Customer Reviews