coggers v1.6.2

Coggers

Coggers is a object-based web server, boasting amazing modularity.

Blueprints

Coggers uses "blueprints" to define what a server should look like.

For example, where in express you'd use

import express from "express";
const app = express();
app.get("/users/:id/", (req, res) => {
	const user = database.getUser(params.id);
	res.send(user);
});
app.post("/users/:id/", (req, res) => {
	const user = database.createUser(params.id);
	res.send(user);
});
app.listen(8080, () => console.log("Listening!"));

in Coggers you instead use

import { Coggers } from "coggers";
const coggers = new Coggers({
	users: {
		":id": {
			$get(req, res, params) {
				const user = database.getUser(params.id);
				res.send(user);
			},
			$post(req, res, params) {
				const user = database.createUser(params.id);
				res.send(user);
			},
		},
	},
});
coggers.listen(8080).then(() => console.log("Listening!"));

Middleware

In Coggers, middleware does not have a next() function. More info

Anyhow, to add middleware you can use the $ key, with an array of middlewares.

import { express } from "coggers/compat";
import cookieParser from "cookie-parser";
const coggers = new Coggers({
	// express() turns express-based middleware into coggers middleware.
	$: [express(cookieParser())],
	$get(req, res, params) {
		const user = database.getUser(req.cookies.id);
		res.send(user);
	},
	$post(req, res, params) {
		const user = database.createUser(req.cookies.id);
		res.send(user);
	},
});

Modularity

As Coggers is fully object-based, modularity is simpler than ever. All you need to do is export a part of a blueprint from file A, and then you can import that in file B and simply put it right in.

Example

Intellisense

Because of this modularity, it's likely that there's blueprints that aren't passed directly into the Coggers constructor. (In the last example, the variable users.)

For your IDE to be able to autocomplete blueprints, you can use the blueprint() utility function. (don't worry, it won't do anything with your blueprint!)

import { blueprint } from "coggers";
const blue = blueprint({
	// Woah, intellisense
});

In typescript, you can also annotate your variable with the Blueprint type:

import { Blueprint } from "coggers";
const blue: Blueprint = {
	// Woah, intellisense
};

Render Engines

Render engines are defined using the renderEngine middleware. Full example here

import { Coggers, renderEngine } from "coggers";
import { renderFile } from "poggies";
const viewsDirectory = new URL("views", import.meta.url);
const coggers = new Coggers({
	// Poggies files end with ".pog", so "pog" here ⬇️
	$: [renderEngine(renderFile, viewsDirectory, "pog")],
	$get(req, res) {
		res.render("index", {
			random: Math.random(),
		});
	},
});

Middleware note

Asynchronous middleware is expected to either be defined as an async function, or to return a promise. If a middleware doesn't want to continue to the next handler, it has to send something to the client (using res.sendStatus(<number>), res.end(), etc.)