Sending Response To The Frontend

• res.writeHead to set any response headers.

res.writeHead(200, { "Content-Type": "text/html" });

• res.write() to send the actual content for the response. the content should be either raw html or json data.

res.write("<h1>Welcome to vanilla node server</h1>");

or,

res.write(JSON.stringify(data));

• res.end() to end the response.

res.end();

Send html response :

res.writeHead(200, { "Content-Type": "text/html" });
res.write("<h1>Welcome to vanilla node server</h1>");
res.end();

Send json response :

res.writeHead(200, { "Content-Type": "application/json" });
res.write(JSON.stringify(data));
res.end();