Go Programming Cookbook by Torres, Aaron -- Read -- Imperial Library of Trantor

Index

Title Page Copyright and Credits

Go Programming Cookbook Second Edition

Dedication About Packt

Why subscribe?

Contributors

About the author About the reviewer Packt is searching for authors like you

Preface

Who this book is for What this book covers To get the most out of this book

Download the example code files Code in Action Conventions used

Sections

Getting ready How to do it… How it works… There's more… See also

Get in touch

Reviews

I/O and Filesystems

Technical requirements Using the common I/O interfaces

How to do it... How it works...

Using the bytes and strings packages

How to do it... How it works...

Working with directories and files

How to do it... How it works...

Working with the CSV format

How to do it... How it works...

Working with temporary files

How to do it... How it works...

Working with text/template and html/template

How to do it... How it works...

Command-Line Tools

Technical requirements Using command-line flags

How to do it... How it works...

Using command-line arguments

How to do it... How it works...

Reading and setting environment variables

How to do it... How it works...

Configuration using TOML, YAML, and JSON

How to do it... How it works...

Working with Unix pipes

How to do it... How it works...

Catching and handling signals

How to do it... How it works...

An ANSI coloring application

How to do it... How it works...

Data Conversion and Composition

Technical requirements Converting data types and interface casting

How to do it... How it works...

Working with numeric data types using math and math/big

How to do it... How it works...

Currency conversions and float64 considerations

How to do it... How it works...

Using pointers and SQL NullTypes for encoding and decoding

How to do it... How it works...

Encoding and decoding Go data

How to do it... How it works...

Structure tags and basic reflection in Go

How to do it... How it works...

Implementing collections via closures

How to do it... How it works...

Error Handling in Go

Technical requirements Handling errors and the Error interface

How to do it... How it works...

Using the pkg/errors package and wrapping errors

How to do it... How it works...

Using the log package and understanding when to log errors

How to do it... How it works...

Structured logging with the apex and logrus packages

How to do it... How it works...

Logging with the context package

How to do it... How it works...

Using package-level global variables

How to do it... How it works...

Catching panics for long-running processes

How to do it... How it works...

Network Programming

Technical requirements Writing a TCP/IP echo server and client

How to do it... How it works...

Writing a UDP server and client

How to do it... How it works...

Working with domain name resolution

How to do it... How it works...

Working with WebSockets

How to do it... How it works...

Working with net/rpc for calling remote methods

How to do it... How it works...

Using net/mail for parsing emails

How to do it... How it works...

All about Databases and Storage

Using the database/sql package with MySQL

Getting ready How to do it... How it works...

Executing a database transaction interface

Getting ready How to do it... How it works...

Connection pooling, rate limiting, and timeouts for SQL

Getting ready How to do it... How it works...

Working with Redis

Getting ready How to do it... How it works...

Using NoSQL with MongoDB

Getting ready How to do it... How it works...

Creating storage interfaces for data portability

Getting ready How to do it... How it works...

Web Clients and APIs

Technical requirements Initializing, storing, and passing http.Client structures

How to do it... How it works...

Writing a client for a REST API

How to do it... How it works...

Executing parallel and async client requests

How to do it... How it works...

Making use of OAuth2 clients

Getting ready How to do it... How it works...

Implementing an OAuth2 token storage interface

Getting ready How to do it... How it works...

Wrapping a client in added functionality and function composition

How to do it... How it works...

Understanding GRPC clients

Getting ready How to do it... How it works...

Using twitchtv/twirp for RPC

Getting ready How to do it... How it works...

Microservices for Applications in Go

Technical requirements Working with web handlers, requests, and ResponseWriter instances

How to do it... How it works...

Using structures and closures for stateful handlers

How to do it... How it works...

Validating input for Go structures and user inputs

How to do it... How it works...

Rendering and content negotiation

How to do it... How it works...

Implementing and using middleware

How to do it... How it works...

Building a reverse proxy application

How to do it... How it works...

Exporting GRPC as a JSON API

Getting ready How to do it... How it works...

Testing Go Code

Technical requirements Mocking using the standard library

How to do it... How it works...

Using the Mockgen package to mock interfaces

Getting ready How to do it... How it works...

Using table-driven tests to improve coverage

How to do it... How it works...

Using third-party testing tools

Getting ready How to do it... How it works...

Behavior testing using Go

Getting ready How to do it... How it works...

Parallelism and Concurrency

Technical requirements Using channels and the select statement

How to do it... How it works...

Performing async operations with sync.WaitGroup

How to do it... How it works...

Using atomic operations and mutex

How to do it... How it works...

Using the context package

How to do it... How it works...

Executing state management for channels

How to do it... How it works...

Using the worker pool design pattern

How to do it... How it works...

Using workers to create pipelines

How to do it... How it works...

Distributed Systems

Technical requirements Using service discovery with Consul

How to do it... How it works...

Implementing basic consensus using Raft

How to do it... How it works...

Using containerization with Docker

Getting ready How to do it... How it works...

Orchestration and deployment strategies

How to do it... How it works...

Monitoring applications

How to do it... How it works...

Collecting metrics

Getting ready How to do it... How it works...

Reactive Programming and Data Streams

Technical requirements Using Goflow for data flow programming

How to do it... How it works...

Using Kafka with Sarama

Getting ready How to do it... How it works...

Using async producers with Kafka

Getting ready How to do it... How it works...

Connecting Kafka to Goflow

Getting ready How to do it... How it works...

Writing a GraphQL server in Go

How to do it... How it works...

Serverless Programming

Go programming on Lambda with Apex

Getting ready How to do it... How it works...

Apex serverless logging and metrics

Getting ready How to do it... How it works...

Google App Engine with Go

Getting ready How to do it... How it works...

Working with Firebase using firebase.google.com/go

Getting ready How to do it... How it works...

Performance Improvements, Tips, and Tricks

Technical requirements Using the pprof tool

How to do it... How it works...

Benchmarking and finding bottlenecks

How to do it... How it works...

Memory allocation and heap management

How to do it... How it works...

Using fasthttprouter and fasthttp

How to do it... How it works...

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