rs-backend/handler/MyHandler.php

<?php
	use Adepto\Slim3Init\HandlerCaller;

	use Adepto\Slim3Init\{
		Handlers\Handler,
		Handlers\Route
	};

	use Psr\Http\Message\{
		ServerRequestInterface,
		ResponseInterface
	};

	class MyHandler extends Handler {
		public function soos(ServerRequestInterface $request, ResponseInterface $response, \stdClass $args): ResponseInterface {
			$lel[] = 'A';
			$lel[] = 'B';
			$lel[] = 'C';

			$lal['t'] = 'A';
			$lal['tt'] = 'B';
			$lal['ttt'] = 'C';
			$lal['tttt'] = 'D';

			$lol['a'] = $lel;
			$lol['b'] = $lal;

			return $response->withJson($lol);
		}

		public function error(ServerRequestInterface $request, ResponseInterface $response, \stdClass $args): ResponseInterface {
			throw new Error('Lol', 42);
		}

		public function devblog(ServerRequestInterface $request, ResponseInterface $response, \stdClass $args): ResponseInterface {

			$blog = '
				Ecconia\'s dusty server-machine
				-	For this project the webserver owned by Ecconia has been started again and a fresh Ubuntu 18.04 has been installed.
				-	Basic setup has been made, editing bash, setting up ssh and vim.

				Sever software
				-	Nginx shall be the server for this project, its easy to setup and all config files are at one place.

				Security
				-	All traffic will be routed over Cloudflare. The connections from and to Cloudflare are encrypted with SSL.
				-	The connection is as secure as Cloudflare is (lets trust it...). Cloudflare mainly caches files and protects against DDOS.

				Vue-Framework added to website
				-	Vue is a framework which uses javascript to manipulate the HTML-DOM of the browser. This allows very easy web-developing.
				-	Nice feature: Updating the website according to JS variables.
				-	Downside: SEO may fail.

				After reading millions of documentation
				-	The first simple version of the website has been written, a single HTMl file contains the whole website.

				Vue-Router
				-	The website is using Vue-Router it allows natural page switching without actually doing so. The content will just be replaced by Vue.

				The small steps
				-	The start page as well as the application page shall function the same as on the current website. Additional this devblog has been added. An Impressum is a must have as soon as the server is located in germany.

				Finally backend for frontend
				-	Vue has \"components\" each mainpage is one, but later other parts of the website may be components (buttons, inputs, pager, posts etc....)
				-	These components may be bundled and can be loaded on demand, this can be done by the frontend, by loading the components.
				-	Webpack is a software which analyzes the source code on the server and bundles it as well as processes it. That way components can be bundled and provided. Additional this provides a fancy way to define components in single files. The code to load components will be generated by Webpack. Yay, less programming less mistakes.

				Transfered everything to new backend
				-	With the new backend a new website structure has been created. The old pages had been transfered to the correct positions in the new backend.
				-	Now that the backend is working, the frontend may be developed.

				Update for the devblog
				-	The Development Blog got a new \"design\" and finally an update to its content.
				-	One variable holds all the entries and will be parsed into a Vue entries array which are automatically visible when added.

				Update introductions
				-	Startpage and Devblog have been rewritten
				';

			$t = explode("\n", $blog);
			$entries = [];
			$entry['title'] = trim($t[1]);

			for ($i = 2; $i < sizeof($t) - 1; $i++) {
				$line = trim($t[$i]);
				if($line === '') {
					continue;
				}

				if($line[0] === '-') {
					$line = trim(substr($line, 1));
					$entry['paragraphs'][] = $line;
				} else {
					$entries[] = $entry;
					$entry['paragraphs'] = [];
					$entry['title'] = $line;
				}
			}

			return $response->withJson($entries);
		}

		public static function getRoutes(): array {
			return [
				new Route('GET', '/soos', 'soos'),
				new Route('GET', '/error', 'error'),
				new Route('GET', '/devblog', 'devblog'),
			];
		}
	}