Expressjs_cheatsheet.js

// -----------------
// router.js
// -----------------

// URL: backend.com/uno?id=111
app.get("/uno", controllerUno);

// URL: backend.com/dos
// BODY: {id: 222}
app.post("/dos", controllerDos);

// URL: backend.com/tres/333
app.delete("/tres/:id", controllerTres);

// URL: backend.com/cuatro
// BODY: {id: 444}
app.put("/cuatro", controllerCuatro);


// --------------------------------------------------------------


const controllerUno = (req, res) => {
	let id = req.query.id;
	console.log(id);
};

const controllerDos = (req, res) => {
	let id = req.body.id;
	console.log(id);
};


// controllerTres.js

const controllerTres = (req, res) => {
	let id = req.params.id;
	console.log(id);
};


// controllerCuatro.js

const controllerCuatro = (req, res) => {
	let id = req.body.id;
	console.log(id);
};