I’ve been working on building a Graphql API in Go and recently ran into an issue serializing Mongo’s ObjectIDs. This doesn’t sound like a difficult task, and thankfully it’s not, but it wasn’t super obvious how to go about this. First, we need to identify what an object ID really is. In the official Mongo […]
Pagination is the idea that a list of content can be broken into separate pages. When I first heard of pagination, the common practice was to use query params to influence which rows of content was loaded by the server. If you clicked the “next” button on the page, it would reload the page with […]
I recently got back from Gophercon in San Diego and am still excited about the talk on the Athens Project. For those unaware, the Athens Project is a module proxy for Go! It’s currently in beta, but showing a ton of promise already. Go’s dependency management has changed a lot over the past few years. […]
An Enum in Java is a special data type that encompasses a set of predefined constants. When setting a variable of that Enum type, you have to use one of the constants that you define for it. A great example is the compass: In the above example, we create a new enum and it’s predefined […]
Go has a fantastic library for writing CLI’s (Command Line Interfaces) called Cobra. I’ve been working on a CLI named Deckard for a few months now. Being new to Go, I had (lazily) shied away from writing tests. However, after thinking about my test plan and doing a little refactoring, I’ve found a great way […]
Interfaces are a tool that allows you to define the behavior of objects and in Golang, interfaces are no different (except that they work on structs instead of “objects”). However, Go has some strange features for interfaces that users from other languages might not expect. Let’s take it slow and start by defining an interface […]
Classes aren’t really a thing in go, so you cant have instance methods (like Java or similar), however, you may have noticed some functions in Go that appear to be instance methods. These are Go’s receiver functions. The way they work is quite simple. If you have a struct like so: You could write a […]