SQLC & dynamic queries

SQLC has become my go-to tool for interacting with databases in Go. It gives you full control over your queries since you end up writing SQL yourself. It then generates models and type safe code to interact with those queries. I won’t go over the basics here, if you feel like it you can try their interactive playground. Dynamic queries Frequently I end up needing to filter the data by a set of fields in the database....

July 3, 2024 · Vik

Enums in Go

I’ve seen many discussions about whether Go should add enum support to the language. I’m not going to bother arguing for or against but instead show how to make due with what we have in the language now. A very short enum intro Enumerated types, or enums, represent finite sets of named values. They are usually introduced to signal that variables can only take one of the predefined values for the enum....

January 26, 2024 · Vik

Profiling gin with pprof

Go comes with great tools for profiling out of the box. It’s one of the features I’ve come to love. I’m not going to go into detail about pprof, but if you need a primer, Julia Evans has a great post about it on her blog. Instead, I’ll try and show a real world example of the optimizations you can make using pprof. I’ll use pprof on mouthful, a gin based server, to see what I could do to make it just a bit faster....

August 23, 2018 · Vik

How I host this blog, CI and tooling

There are quite a few components to this blog now. There’s an AWS S3 bucket the blog gets served from, there’s a backend service responsible for the mouthful comments, there’s another instance of the service for the mouthful demo page, with another S3 bucket to serve the page for it. There’s also a yet unused service living in the same “cluster” as these two(It’ll get added to this blog soon™). There’s quite a few private github repositories that in unison with a Jenkins instance make this all work....

August 15, 2018 · Vik

Refactoring Go switch statements

When writing Go code, I often end up with lots of enums that I use to fork my logic in a switch statement. Take this enum: type MyEnum int const ( One MyEnum = iota Two MyEnum = iota Three MyEnum = iota Four MyEnum = iota Five MyEnum = iota )} I’ll then end up with a switch in a part of my code, like so switch myEnum { case One: err := DoSomeOtherStuff() if err !...

July 28, 2018 · Vik

OAuth with Gin and Goth

When I created mouthful, I was intending it to be rather light and not feature rich but after getting a few feature requests getting in, I’ve decided to expand it. One of the issues was a request to reuse logon credentials for the admin panel. For that, I’ve needed OAuth. I did not have much prior experience with OAuth, so it did intimidate me a bit. However, after implementing OAuth for mouthful, I can say that nowadays - it’s rather easy including OAuth in your applications as well....

June 1, 2018 · Vik

I made my own commenting server. Here's why.

I haven’t been blogging much lately. That’s due to the fact that most of my spare time went to creating mouthful - a commenting server that I’ve since switched this blog to. Before that I was using isso. Here’s why I did it. The issue with isso While I really like isso, there’s one problem that kills it for me. Under no load, the backend consumes nearly 50MB of memory on my server....

April 19, 2018 · Vik

Why I hate OpenApi(swagger)

<rant> I absolutely despise OpenApi(well, swagger. I’ll call it swagger since it was that for most of my career). It’s supposed to make the process of creating and documenting an API easier. But does it really?… Here’s what I think about it. Writing the swagger schema is so damn tedious From my experience when someone mentions swagger, you’ll get dragged into design first - code later mindset rather quickly. While it sounds good on paper the practical implications of writing a swagger schema just make me want to curl in a ball in the corner of the office....

February 24, 2018 · Vik

IDE for GO

There are quite a few IDE choices for Go. I’m not going to list them all, but here are my prefered ones with the reasoning behind it. The free option VS code is my main IDE as of late. It does not matter if I code Go or Node, I always prefer to go with VS code. I used to use Atom for it’s extensibility and the amount of packages avaialble....

February 13, 2018 · Vik

Kestrel vs Gin vs Iris vs Express vs Fasthttp on EC2 nano

Since this post got quite a bit of traction, I decided to update it by rerunning all the benchmarks as well as adding GO’s fasthttp and Node’s express to the comparison. I came across this blog post on ayende.com. Here Oren Eini tries to see how far he could push a simple ipify style of api on an EC2 by running a synthetic benchmark. He hosts the http server on a T2....

January 23, 2018 · Vik