API foundations in Go

API foundations in Go

You've mastered PHP and are looking at Node.js? Skip it and try Go. Tit Petric

This book is for sale at This version was published on 2019-01-15

This is a Leanpub book. Leanpub empowers authors and publishers with the Lean Publishing process. Lean Publishing is the act of publishing an in-progress ebook using lightweight tools and many iterations to get reader feedback, pivot until you have the right book and build traction once you do. ? 2016 - 2019 Tit Petric

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I'm dedicating this book to my wife, Anastasia. Even if you say that you don't suffer, I'm sure that I'm killing your inner child by explaining what Docker is. I'm sorry for that.

CONTENTS

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 About me . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Why Go? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Who is this book for? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 How should I study it? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Setting up your environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Setting up a runner for your Go programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Setting up Redis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Data structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Declaring structs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Casting structs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Declaring interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Abusing interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Embedding and composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Limiting goroutine parallelization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Slices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 The slice operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Allocation by append . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Copying slices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Using slices in channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

API foundations in Go

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