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Understanding HTTP using Node.js "net" 3. HTTP Request
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| import { createServer, Server, Socket } from 'net'; | |
| const port: number = 9903; | |
| // --------------------------------------------- | |
| // server | |
| // --------------------------------------------- | |
| const server: Server = createServer((clientSocket: Socket) => { // 2. this is the client below | |
| console.log(`[server] connected client: ${JSON.stringify(clientSocket.address())}`); | |
| clientSocket.on('data', clientData => { // 4. receive the request from client below | |
| console.log(`[server] received data from client:`); | |
| console.log(clientData.toString().split('\r\n')); | |
| const response: string = [ | |
| 'HTTP/1.1 200 OK', | |
| 'Content-Type: text/html', | |
| 'Status: 200', | |
| '', | |
| '', | |
| '<html><body>Hello World!</body></html>', | |
| '', | |
| '', | |
| ].join('\r\n'); | |
| clientSocket.write(response); // 5. respone to client | |
| }); | |
| }); | |
| server.listen(port, () => { | |
| console.log(`[server] opened server: ${JSON.stringify(server.address())}`); | |
| }); | |
| // --------------------------------------------- | |
| // client | |
| // --------------------------------------------- | |
| const client: Socket = new Socket(); | |
| client.connect(port, '127.0.0.1', () => { // 1. connect to server | |
| console.log(`[client] connected`); | |
| const request: string = [ | |
| 'GET / HTTP/1.1', | |
| 'Accept: */*', | |
| 'User-Agent: my-test-agent', | |
| 'Host: localhost:' + port, | |
| '', | |
| '', | |
| ].join('\r\n'); | |
| client.write(request); // 3. request to server | |
| }); | |
| client.on('data', serverData => { // 6. receive the response from server | |
| console.log(`[client] received data from server:`); | |
| console.log(serverData.toString().split('\r\n')); | |
| client.destroy(); | |
| }); | |
| client.on('close', () => { | |
| console.log(`[client] connection closed`); | |
| }); |
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