Book Image

Mastering Go – Third Edition - Third Edition

By : Mihalis Tsoukalos
5 (2)
Book Image

Mastering Go – Third Edition - Third Edition

5 (2)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
14
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15
Index

A package for working with a database

This section will develop a Go package for working with a given database schema stored on a Postgres database, with the end goal of demonstrating how to develop, store, and use a package. When interacting with specific schemas and tables in your application, you usually create separate packages with all the database-related functions—this also applies to NoSQL databases.

Go offers a generic package (https://golang.org/pkg/database/sql/) for working with databases. However, each database requires a specific package that acts as the driver and allows Go to connect and work with this specific database.

The steps for creating the desired Go package are as follows:

  • Downloading the necessary external Go packages for working with PostgreSQL.
  • Creating package files.
  • Developing the required functions.
  • Using the Go package for developing utilities.
  • Using CI/CD tools for automation (this is optional).
  • ...