Go Tutorial - Learn Go from the Basics with Code Examples on golangbot.com

Although Docker and container orchestrators like Kubernetes have solved the issues such as ensuring that a web service keeps running all the time, they are quite complicated to configure and maintain for small SAAS applications and side projects. For my own side projects such as https://sslnotify.com/, I use a systemd service to deploy my Go binary. This setup is very simple and...

My GopherCon UK 2025 talk Climbing the Testing Pyramid: From Real Service to Interface Mocks in Go can be watched on youtube. This is the first time I am speaking at GopherCon and also in front of a large audience of nearly 150 people. This talk explores the various strategies for unit testing Go applications that interact with cloud services like S3. Testing against real cloud ...

Welcome to tutorial no. 33 in Golang tutorial series. What is Panic? The idiomatic way of handling abnormal conditions in a Go program is using errors. Errors are sufficient for most of the abnormal conditions arising in the program. But there are some situations where the program cannot continue execution after an abnormal condition. In this case, we use panic to prematurely te...

Welcome to tutorial no. 16 in our Golang tutorial series. What is a struct? A struct is a user-defined type that represents a collection of fields. It can be used in places where it makes sense to group the data into a single unit rather than having each of them as separate variables. For instance, an employee has a firstName, lastName and age. It makes sense to group these thre...

Welcome to tutorial no. 14 in Golang tutorial series. Strings deserve a special mention in Go as they are different in implementation when compared to other languages. What is a String? A string is a slice of bytes in Go. Strings can be created by enclosing a set of characters inside double quotes " ". Let’s look at a simple example that creates a string and prints it. 1package ...