Module http sing ana ing Node bisa gawe web server tanpa perlu dependensi. Nanging ing praktike akeh aplikasi nggunakake framework kayak Express ing sadhuwure, nanging ngerti raw server iki bisa nerangake apa sing ditindakake framework kanggo sampeyan.
http ;
server = http.( {
(req. === && req. === ) {
res.(, { : });
res.(.({ : }));
} {
res.();
res.();
}
});
server.(, .());
Callback iki mlaku kanggo saben request. Sampeyan inspeksi req (url, method, headers) lan nulis menyang res (status, headers, body). Gawea perhatian sampeyan nangani routing lan parsing kabeh nang tangan.
let body = "";
req.on("data", chunk => body += chunk); // body arrives in chunks
req.on("end", () => {
const data = JSON.parse(body); // parse once fully received
});
Karo raw http, malah maca request body iku kais ngumpulake stream chunks nang tangan — capek, ingkang persis abstrak sing ditindakake frameworks.
import express from "express";
const app = express();
app.use(express.json()); // body parsing handled for you
app.get("/", (req, res) => res.json({ message: "Hello" })); // routing handled
app.post("/users", (req, res) => res.status(201).json(req.body));
app.listen(3000);
Express nambah routing, body parsing, middleware, lan helpers sing enayang (res.json, res.status) — ngganti puluhan larik manual http code.
Module http yaiku fondasi saben Node web framework dibangun.
Ngerti carane gawe raw server — lan weruh kerja manual sing dibutuhake (routing kanthi inspeksi req.url/req.method, ngumpulake body chunks, nata headers) — nggawakake jelas apa nilai frameworks kayak Express tambah (routing, body parsing, middleware, helpers).
Ngerti iki tulung sampeyan debug ing tingkat tepat lan ngepresiasi kenapa frameworks iku standar kanggo aplikasi nyata, dene raw http tetep saged kanggo services enteng utawa sinau fondamentals.