Posts about go
How to Show Flash Messages in Go web applications (with Echo framework)
When we create a web application, usually, there a need to communicate with the users to inform them about the results of their actions. The easiest way to communicate - is to send messages. These messages might be warnings, errors, or just informational text. In this article, we will improve the UX of our user authentication application from the previous article by adding an error flash message when the user entered a wrong password and a success message after user authorisation.
go echo flash messages
User Authentication in Go Echo with JWT
In this article, we will build a simple user authentication functionality using JWT (JSON Web Token). In the examples, I’m going to use a Go Echo framework. This will allow us to avoid writing some boilerplate code.
go authentication JWT Echo
A Simple Queue Implementation in Golang with channels
In this post, I’m going to show the way how we can implement a simple queue in Golang, using channels.
go queue channel goroutine
How to Sort Strings With Go Alphabetically in Any Language
In this article I’m going to show how easy we can sort strings alphabetically in different languages, using Go. It seems like an easy task if we want to sort English words, however, it’s not so trivial if we want to sort correctly strings with special characters or in other languages, i.e Cyrillic based.
go sorting alphabetical sort
How to Control Router Access Permissions in Go Web Apps
In this post I’m going to describe how can we limit user access to the specific url in golang web application. I will use chi router - a lightweight, idiomatic and composable router for building Go HTTP services.
go router chi
How to test database interactions in golang applications
Testing of functions with database interactions always was challenging. Recently, I found a wonderful library go-sqlmock which will simplify writing tests and mocking database queries in golang applications a lot.
go testing sql
Go middleware example. How to alter a handler result
Let’s imagine a situation when you want to alter the result, returned by some http handler to the client. Fortunately, Golang provides an easy mechanism for that, called a middleware. I’m going to dive directly to the source code, to save your time.
go middleware