Golang has fantastic support for actions that are supposed to happen concurrently (at the same time) without blocking the thread, they are called goroutines and are used by simply putting
go in front of a function.
The functions prefixed with
go will run “on their own” and the rest of your code will continue to run.
In order to gather results or
returns from the functions, you commonly make use of a channel. Channels are the collecting “buckets” that will receive what your goroutines write to them.
Continue reading “Goroutines, Channels and awaiting Asynchronously Operations in Go”
WordPress comes with a lot of built in amazingness, one of those are filters. You can filter a lot of different things that WordPress outputs into your theme or from your plugin that originate from another place.
That means you can add or remove something to all titles, category names or widgets. That might not seem incredibly useful at first, but if you for example want to add a text at the end of a blog post or page while using an already existing theme, it can be very nifty.
Continue reading “WordPress Filters Example for Beginners”
As a blogger or any other kind of publisher, you might be interested in if the user accessing your page right now is using an ad blocker or not. You might want to do that to display a box that encourages them to disable their ad blocker, because you’re trying to make a living off of blogging or to make more conscious decisions about how you’re going to layout your page.
If a user has an adblocker installed, you don’t have to reserve the space in your layout for the ad units, so you might as well get rid of them, so in this post we’re going to have a look at how we can determine if a user has installed an ad blocker like Adblock, Adblock Plus or uBlock.
Continue reading “How To: Detect Ad Blockers (adblock, uBlock, etc)”
Creating a chatbot for Slack, the easy to setup group chat for teams was surprisingly easy. In this post we’re going to go over creating a chat bot that can reply to queries and take an action on simple keywords.
We’re going to use a node module called BotKit, which will enable us to connect to Slack easily. Actually Botkit offers a GUI (paid plans) and also connects to Microsoft Teams, Spark, Twilio and even Facebook.
One of the things I like the most about it is that you can kind of build a bot once and then re-use components across different platforms, which is super cool.
This post is written with
but will probably be up and downwards compatible fairly far since the dependency has been around for a while.
Continue reading “Creating a Chatbot for Slack with Node.js in 17 lines”
govendor is a dependency manager for Go. Go get gets you pretty far when it comes to installing dependencies at first, but when you want to deploy your project or when you want to pin the right version of your dependency it’s not necessarily appropriate to use.
With govendor you can, like with
npm or other tools specify which version of your dependency your project uses, which is a huge benefit for systems that are required to be somewhat stable.
Continue reading “Managing Dependencies with Govendor (Heroku, Dokku)”
Dokku is advertising itself as a self hosted Platform as a service and it lives up to its promise. You can fairly easily deploy a range of applications like Ruby, Node.js, Go and so on. Basically everything beyond your standard PHP CMS like WordPress (but also that ;)).
Dokku is easy to install and maintain. Under the hood it uses docker containers to run your apps. Dokku also comes as a pre-built app as a one click installer on Digital Ocean*. Since Dokku is very easy to install, there’s a couple of alternatives for you, for example Linode* or Vultr*.
Note: Dokku recommends at least 1GB or RAM.
Continue reading “Heroku Alternative: Dokku”
WordPress is still incredibly popular and sometimes you have a to move a WordPress installation or you want to change your permalink structure. Regardless of your motivation, you probably don’t want to hurt your SEO.
I’ve spent some time writing and testing
.htaccess for Apache2 redirects recently, so I thought I’d share a list of commonly needed WordPress redirects using regular expressions or just removing segments.
By default I’ll assume you use a
.htaccess file that looks something like this:
Continue reading “WordPress .htaccess and Permalink Cheat Sheet”
We’ll be using a simple express app with some handlebars views for the setup and we’ll just quickly walk through using handlebars with Express.
Continue reading “Handlebars Custom Helpers and Chaining”
When you want to deploy a dead-simple Go API and you don’t really have the urge to learn Docker and large scale deployment (although certainly a useful skill), you have come to the right tutorial.
We’re going to have a quick look at setting up running a golang web app on a Linux VPS without spending more than 10 minutes on it.
Continue reading “Deploying Go Apps with Systemd in 10 Minutes (without Docker)”
Monero currently trades at around 88$ per XMR (the Monero currency code) and Coin Hive takes a 30% cut for everything mined through their infrastructure.
Continue reading “Testing Coin Hive Crowd Source Monero Mining”