On everybody smartphone there are a lot of apps downloaded from an app store. There apps are build for a specific platform and distributed through a managed selling channel. This works well, but is not really the way the internet worked in the past few decades.
Modern browser allows you to “install” them, but it’s more a link placed on your home screen, and also use them when you’re offline.
But for webapps there is no app store and they are difficult to find, but now there is Appix, the global webapp directory, where you can browse through webapps presentations and find that one you need. Give Appix a try, register and review your favorite webapps.
So you want to give a try to Perl6 to see what this language can do for you, but you don’t want to mess up your system with a lot of software you don’t know if will ever use again. No problem! The obvious answer is called Docker.
Perl was the language of choice in the early days of web programming, when Perl was a synonym for CGI. Many things are changed in the meanwhile, but we can still use Perl with a modern webserver to get things done! Read more
Docker is the modern way for distribute applications. It allows you to create a deployable entity that will run in the same way on almost every *unix platform without the need to install anything more than same basic dependencies required by Docker itself. An ideal choice to run a code sample, a testing environment or your production application. Let’s see how to use it to run a simple Perl script. Read more
Rsync is the tool of choice if you have to transfer files from a server to another one. The tool is very powerful and has a lot of options, but is not that easy to use when you have in mind what you need to do but you don’t know how. Read more
Perl has a native support for different character encodings, like the well known UTF-8, but its default behavior is to use Latin-1. This brings easily to a lot of problems if you don’t tune certain settings. Read more
Everybody who work with Perl knows LWP::UserAgent, the most used library when you need to work with HTTP connections.
The library has some methods that cover the most common usage cases, such as GET and POST request.
If you need something more particular you have to set up a HTTP::Request object and pass it to LWP::UserAgent’s request method. I don’t think I’m saying something unexpected.
I recently got some problems by sending a bug file. It wasn’t really big because I’m talking about a 100 MB file, but it was bit enough to send my small VPS server out of memory. This was because I needed to pass it as raw POST payload for Google Drive API and to do that I was slurping it into memory. A bad idea.
One common situation in web developing is that you want to expand and collapse an element (maybe a DIV) with a smooth animation. It’s a common request because having a smooth animation helps the user to follow what happens on the page without being disorientated by fast changes. Read more
Google APIs are great. You can do almost everything with them: data reporting, file upload, everything. Unfortunately the documentation isn’t that good because same very important informations are not reported there! So you try the examples and they don’t work because of a hidden step you didn’t done. Read more