Write a step by step tutorial how to build a plugin

[mimamuh]

Hi,

I just tried to write my first plugin for craft3 but found it quite hard to bring all peaces together. Before I write a plugin I have to get pieces from three different places right now:

• Yii docs
• Craft 3 Class Reference
• Craft 3 docs und somehow also Craft 2 Docs as the 3 docs don't look complete

But there is still a example missing, how everything works together. I remember how I got into meteor.js which has now quite great tutorials to start by creating a app step by step.

So it would be great to have such a thing for plugins in craft 3 which does the following things:
Writing a plugin with a twig extension, settings in the config, some settings should be also changable in the CP, accessing a Service through craft.myplugin.*, basic error handling/logging, getting input values from the website and writing the data to a custom database table and displaying it again on the website. So basic routing is also included.

Maybe the classical TODO app would be good to way to do by it or similar. But such a tutorial/guide mix is definitely missing but would dramatically improve the learning curve.