Go

Go has very rich standard library which also contains database/sql module with generic interface over SQL databases. Further, lib/pq PostgreSQL driver is fully compatible with database/sql and provides all basic database operations. However, since this is generic implementation over all supported databases, using it is a trade-off not supporting some PostgreSQL specific features. Fans of PostgreSQL (in further text pg) may want more and here comes pgx in help. pgx is a very rich pg driver supporting LISTEN / NOTIFY, COPY, type mapping between pg and Go, all specific pg types, wire protocol and much more....

Go is over ten years old language but generics (type parameters) are introduced just in the March this year. Hence, still lot of developers avoid using them or have certain problems once decided to give it a try. One of the common problems is how to check the concrete type of a generic parameter, specially of non constrained parameters. So, if you try to do the following, it won’t work:...

Lot of the tutorials on the Web show different ways of writing Go HTTP middlewares, but most of them use functional approach meaning using functions that get dependencies as parameters and return HTTP handler function or handler. There is nothing wrong about this, but it can be quite messy to write a complex middlewares like database based authentication and authorization or simply middlewares which have lot of dependencies. In this article I am going to explain how to use more object oriented way of writing such middlewares....

Few days ago Go 1.18beta1 was released and with it the first official generics support. I was embarrassed with standard Go’s HTTP handler functions for quite a while. If you are not familiar with Go, you probably wonder why, but if you are familiar, I believe you know. For example, implementing a RESTful API using idiomatic Go requires lot of code repetition in order to JSON decode request bodies and JSON encode response bodies....

According to lot of online polls, Visual Studio Code is the most popular IDE among Go developers. You can start Go development immediately after installing Go extension for VSCode, but some tuning may make your life easier. First of all, you may want to format the source code and reorganize imports automatically on each file save or code paste. In order to do so, put the following JSON snippet in your settings....