Book Image

Full-Stack Web Development with Go

By : Nanik Tolaram, Nick Glynn
Book Image

Full-Stack Web Development with Go

By: Nanik Tolaram, Nick Glynn

Overview of this book

Go is a modern programming language with capabilities to enable high-performance app development. With its growing web framework ecosystem, Go is a preferred choice for building complete web apps. This practical guide will enable you to take your Go skills to the next level building full stack apps. This book walks you through creating and developing a complete modern web service from auth, middleware, server-side rendering, databases, and modern frontend frameworks and Go-powered APIs. You’ll start by structuring the app and important aspects such as networking, before integrating all the different parts together to build a complete web product. Next, you’ll learn how to build and ship a complete product by starting with the fundamental building blocks of creating a Go backend. You’ll apply best practices for cookies, APIs, and security, and level up your skills with the fastest growing frontend framework, Vue. Once your full stack application is ready, you’ll understand how to push the app to production and be prepared to serve customers and share it with the world. By the end of this book, you’ll have learned how to build and ship secure, scalable, and complete products and how to combine Golang with existing products using best practices.
Table of Contents (21 chapters)
1
Part 1: Building a Golang Backend
5
Part 2:Serving Web Content
9
Part 3:Single-Page Apps with Vue and Go
14
Part 4:Release and Deployment

Local logging

Now that we have an idea of how to use golog, we are going to use more of its features to extend it. The library provides a function allowing applications to handle writing the log messages for each log level – for example, an application wants to write all errors into a file while the rest print out into the console.

We are going to take a look at the example code inside the example/gologmoutput directory. Build and run it and you will see two new files created called infoerr.txt and infolog.txt. The output from both files will look as follows:

[ERRO] 2021/11/26 21:11 This is an error message [INFO] 2021/11/26 21:11 This is an info message, with colors (if the output is terminal)

The app uses the os.OpenFile standard library to create or append files called infolog.txt and infoerr.txt, which will contain different log information that is configured using the golog SetLevelOutput function. The following is the snippet of the function that configured the...