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@rohit1101
Created May 20, 2021 16:32
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nodejs_basics
const http = require("http");
const url = require("url");
const hostname = "127.0.0.1";
const port = 3000;
const server = http.createServer((req, res) => {
// Create an endpoint to read headers from request
const queryParam = url.parse(req.url, true).query;
console.log(queryParam, req.headers.host);
console.log(req.url, req.method);
// Create an endpoint to return a text response
if (req.url === "/plaintext") {
res.statusCode = 200;
res.statusMessage = "Plain text data sent";
res.setHeader("Content-Type", "text/plain");
res.end(JSON.stringify("Response from backend task to rest-client"));
}
// Create an endpoint to return a json response
if (req.url === "/jsonresponse") {
const jsonRes = {
data: "Response from backend task to rest-client",
};
res.statusCode = 200;
res.statusMessage = "Json response sent";
res.setHeader("Content-Type", "application/json");
res.end(JSON.stringify(jsonRes));
}
// Create an endpoint to return a html response
if (req.url === "/htmlres") {
res.statusCode = 200;
res.statusMessage = "HTML response sent";
const data = `<h1> We are the kings of the world ....ing kings of the world</h1>`;
res.setHeader("Content-Type", "text/html");
res.end(data);
}
// Handling POST request
if (req.method === "POST") {
if (req.url === "/postdata") {
let data = "";
req.on("data", (chunk) => {
data += chunk;
});
req.on("end", () => {
console.log(JSON.parse(data));
res.statusCode = 200;
res.statusMessage = "POST operation successful";
res.end(JSON.stringify("data is saved"));
});
}
}
});
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}`);
});
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