Building Your First Application with Go
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Building Your First Application with Go

Get practical experience and learn basic skills while developing an application with Google Go
3.6 (13 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
243 students enrolled
Created by Packt Publishing
Last updated 8/2015
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Current price: $10 Original price: $85 Discount: 88% off
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  • 3 hours on-demand video
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Find where to get the Go compiler and how to use supplied tools
  • Explore basic and complex data types and how Go manages main memory
  • Learn about the code execution control structure
  • Organize source code into reusable parts with functions and packages
  • Get to grips with the principles of object-oriented development and the specifics of their implementation in Google Go
  • Understand how concurrent applications work and how goroutines help you to easily implement concurrency
  • Schedule goroutines with a runtime scheduler
  • Build well-designed applications from the ground up
View Curriculum
  • This course assumes that you have some basic knowledge of computer science.
  • Each video covers a whole feature of the language. It begins with a small amount of theory and ends with a working example, which you can run yourself.

Building the First Application with Google Go is your way into the world of software development. Go has a robust library and advanced techniques. This makes it a great language that can even be understood by people with no experience in programming.

Take a journey through the concepts presented by the Google Go language! Go is a language with no legacy, well suited for software developers, be it for beginners or experienced users.

The Google Go language presents fresh patterns of software development. You will learn about the core distinctive features of Go – goroutines and channels, which are used to design concurrent applications. You will gain familiarity with approaches of structuring application code, by breaking it into reusable components like functions, packages, and objects. Object-oriented programming; one of the central paradigms of modern software development, is also covered in this course. It offers the most popular and well-tested patterns for building brilliantly structured applications; the course finishes with creating a production-ready image manipulation program, which is built as a web application.

The course will help you to start building applications with Google Go right off the bat. Packed with examples, especially with a finished production-ready application from the final section, the course gives you the right vision of what software source code should look like.

About the Author

Rostyslav Dzinko is a software architect who has been working in the software development industry for more than six years. He was one of the first developers who started working with the Go language far earlier than the first official public release of Go 1.0 took place. Rostyslav uses the Go language daily and has successfully used it in production for more than two years, building a broad range of software from high-load web applications to command-line utilities. Rostyslav has a Master’s degree in Systems Engineering and will complete a PhD thesis in a year and a half.

Who is the target audience?
  • If you are a student or would like to dive into the world of software development using the Go language, then this video course is ideal for you.
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Curriculum For This Course
40 Lectures
First Application
5 Lectures 23:19

Getting the Go language compiler. Setting up the environment for developing and running applications.

Preview 04:34

Getting the very first application to work. It's useful to receive the first working result and understand the application structure.

"Hello, world!"

Mastering the standard go tool for processing the Golang source code: compilation, formatting, testing, and documentation.

Preview 04:54

Introducing standard input and output as the simplest way for users to interact with the application.

First Useful Application

Commenting and documenting the Go language source code in order to simplify the understanding of complex applications.

Commenting the Code
Basic and Complex Data Types
6 Lectures 29:52

Learn ways to store data in an application's main memory while switching between changing data and constant data.

Variables and Constants

Defining variables of numeric and textual data types. Introducing the boolean data type, which is a result of common operations.

Playing with Numbers and Strings

Using pointers instead of values. Learning the significance of pointers.

Pointers and Values

Using arrays and slices to store values. Avoiding a large number of variables for storing values.

Slices and Arrays

Using two-dimensional slices to solve practical tasks – representing matrices. Introducing n-dimensional slices.

Two-dimensional Slices

Using maps for practical tasks – serialization of objects and data caching.

Control Structures
5 Lectures 22:00

Adding the conditional execution of code blocks to an application. Even the simplest of applications require the conditional execution of code.

"if-else" – Understand Your Code to Make Decisions

Making code easier to read by replacing if-else with switch. Explaining cases when switch is better than if.

"switch" – Decisions Are Made Even Simpler

Adding repetitive task execution to the application. Explaining the significance of iterative algorithms.

"for" – Mastering Cycles

Learning error processing and error generation in Go.

Preview 03:21

Learning about the comma-ok notation and its role in code styling.

The "comma-ok" Notation
Structuring Code with Functions and Packages
5 Lectures 24:56

Function syntax, role of functions in code, and usage.


Usage of anonymous functions. Passing functions as values.

Anonymous Functions

Structuring code into packages. Separating the application logic.


Initializing packages. Order and purpose of the package init functions.

Preview 03:16

Deferred execution of functions and initialization and cleanup of resources.

Deferred Execution
Object-oriented Programming in Go
4 Lectures 17:43

Introducing encapsulation in Go. Structure definition and usage syntax.


Adding behavior to structures with methods. Private and public fields.


Interface types as a way to glue application parts together.


Using the universal interface to pass any kind of data to a function.

Preview 02:34
Goroutines and Channels
5 Lectures 21:43

Learning how concurrency and parallelism can be added to an application written in Go.

Goroutines Lifecycle and Parallel Execution

Learning how data can be synchronized in concurrent Go applications.


Learning how buffered channels can be used in concurrent Go applications.

Preview 04:42

Solving the typical problem of data collection from different sources using goroutines and channels.

The "FanIn" Pattern

Solving the typical data distribution problem of different sources using goroutines and channels.

The "FanOut" Pattern
Building a Web Image Manipulation Program (WIMP), Part I – Web Application
5 Lectures 17:31

Creating a simple web server in Go. Learning the anatomy of a typical web application.

Running a Web Server in Go

Learning how a URL multiplexer solves a URL routing task.

URL Multiplexer and Query String Parameters

Learning how to add templates to an application – the standard html / template package.

Adding Templates

Learning how to cache templates in a web application in order to optimize performance.

Caching Templates

Catching runtime errors. Using the panic and recover functions to keep the application stable.

Errors, Panic, and Recover
Building a Web Image Manipulation Program (WIMP), Part II – Image Processing
5 Lectures 15:51

Learning how to process images. Implementing the color inversion algorithm.

Color Inversion

Learning how to load images into web applications.

Hooking Up an Image – Encoding and Decoding

Learning how to process images. Using the temporary memory storage.

Image Rotation

Learning how to improve the design and why we must do it.

Improving the Design

Analyzing the video course results and what the viewer should have learned.

About the Instructor
Packt Publishing
3.9 Average rating
7,297 Reviews
52,255 Students
616 Courses
Tech Knowledge in Motion

Packt has been committed to developer learning since 2004. A lot has changed in software since then - but Packt has remained responsive to these changes, continuing to look forward at the trends and tools defining the way we work and live. And how to put them to work.

With an extensive library of content - more than 4000 books and video courses -Packt's mission is to help developers stay relevant in a rapidly changing world. From new web frameworks and programming languages, to cutting edge data analytics, and DevOps, Packt takes software professionals in every field to what's important to them now.

From skills that will help you to develop and future proof your career to immediate solutions to every day tech challenges, Packt is a go-to resource to make you a better, smarter developer.

Packt Udemy courses continue this tradition, bringing you comprehensive yet concise video courses straight from the experts.