1. How to get request header in HTTP server
const http = require('http');
const server = http.createServer((req, res) => {
res.end( req.headers['x-test'] );
});
server.listen(82, '127.0.0.1');
-
require('http')
- import module to work with http protocol, -
http.createServer
- creates HTTP server, -
(req,
- object with request data, -
res
- object to manage response, -
.end(
- finished http response with given content, -
req.headers
- object with all request headers, -
x-test
- sample request header to get value of.
Open original or edit on Github.
2. How to set response header in HTTP server
const http = require('http');
const server = http.createServer((req, res) => {
res.setHeader('Content-Type', 'text/plain')
res.end();
});
server.listen(82, '127.0.0.1');
-
require('http')
- import module to work with http protocol, -
http.createServer
- creates HTTP server, -
(req,
- object with request data, -
res
- object to manage response, -
.end(
- finished http response with given content, -
.setHeader(
- sets response header, -
Content-Type
- name of the header to send, -
text/plain
- value of the header to send.
Open original or edit on Github.
3. How to set content type in HTTP server
const http = require('http');
const server = http.createServer((req, res) => {
res.setHeader('Content-Type', 'text/csv')
res.end("1,2,3");
});
server.listen(82, '127.0.0.1');
-
require('http')
- import module to work with http protocol, -
http.createServer
- creates HTTP server, -
(req,
- object with request data, -
res
- object to manage response, -
.end(
- finished http response with given content, -
.setHeader(
- sets response header, -
Content-Type
- we're going to set content type, -
text/csv
- let's send csv content as example.
Open original or edit on Github.
4. How to allow CORS in HTTP server
const http = require('http');
const server = http.createServer((req, res) => {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
res.setHeader('Access-Control-Max-Age', 60*60*24*30);
res.end('Hi');
});
server.listen(82);
-
require('http')
- import module to work with http protocol, -
http.createServer
- creates HTTP server, -
(req,
- object with request data, -
res
- object to manage response, -
setHeader(
- sets response header, -
Access-Control-
- CORS headers to set, -
'*'
- allow access from all origins, -
60*60*24*30
- ACL lifetime is set to 30 days.
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