For those of you who have read “7 habits of highly effective people” by Stephen Covey, you should have already familiar this term, but for those of you who haven’t, then this reading is for you. I would like to share a quick materials why being a proactive person is…

Have you ever heard of Redis Keyspace Notifications? Probably most of you already familiar with redis and even use it on daily basis, but do you know we can get “notified” if there is a key change / expiration happen? What is this Keyspace Notifications? Long story short, it’s a pubsub mechanism that allows you…

This will be a short writing if you haven’t utilize the power of go routine to make your application process “faster”. …

Several moments ago, I was wondering if we have multi cron job that are running same binaries, but we need to make sure that each job / task process is being ran only by one instance, is there a way to achieve that. I know this is weird, why do…

Usually i wrote something about software engineering / programming, but this one will be different. I would like to share a thing that happened in 2020 that enlightened and hit me differently. …

There are several “fun things” that you need to know, this might help you to prevent going in pitfalls when writing golang program. These includes: Interface contains nil but not considered as nil Slice and Map are reference type Child Go routine and Parent Don’t use basic type string /…

Recently I created a simple Golang automatic “retrier” that will do automatic retry on our desired struct method with configurable maximum attempt. adityarama1210/retrier Simple, ready to use, suitable for writing / saving something in the background, fire and forget (Haven’t been developed…github.com Summarizing the automatic retrier flow there are several things that we need to implement: We need to create a struct that implements the “retriable” interface, which consist of…

Continuing our basic Golang unit testing example, we are going to continue on another step of simple function mocking for unit testing in Go. In here We’re only going cover this two “kind” of function: Function in your own package Function imported (from library or stuff) outside of your project …

In a nutshell basically you need to test the code you write to ensure you’re doing it right. If you have a function that add two numbers, you will expect the result to be sum of those two numbers, by writing the unit test, you make sure that when the…