javascript: http server

README.md

session-cookie.js

nodemon session-cookie.js
> 127.0.0.1:8000
# visit /login
> Redirects to /admin with cookie
# visit /logout
> Redirects to / with cookie deleted

http-routes.js

const http = require('http');
const { graphql, buildSchema } = require('graphql');

const PORT = 8000;
const settings = { colors: true, depth: null };

const getBody = req => new Promise((resolve, reject) => {
  const body = "";
  req.on('data', chunk => body += chunk);
  req.on('end', () => resolve(body));
});

const routes = {
  '/': {
    get: (req, res) => Promise.resolve({ body: 'get' }),
    post: (req, res) =>
      getBody(req).then(body => ({ body: JSON.stringify({ url: req.url }) })),
  },
  '#': () => Promise.resolve({ statusCode: 404, body: 'Not Found' })
};

const handler = (req, res) => {
  const { method, url } = req;
  const defaults = {
    body: '',
    headers: { 'Content-Type': 'text/plain' },
    statusCode: 200
  };
  const route = (routes[url]) ? routes[url][method.toLowerCase()] : routes['#'];
  route(req, res).then(data => {
    const { body, headers, statusCode } = Object.assign(defaults, data);
    res.writeHead(statusCode, headers);
    res.write(body);
    res.end();
  });
};

const server = http.createServer(handler);

server.on('clientError', (err, socket) => {
  socket.end('HTTP/1.1 400 Bad Request\r\n\r\n');
});

server.listen(PORT, () => {
  console.log('Server listening on: %s', PORT);
});

session-cookie.js

const http = require('http');

const PORT = 8000;
const settings = { colors: true, depth: null };

const routes = {
  '/admin': {
    get: (req, res) => (console.log(req), Promise.resolve({
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ req: req.headers }),
    }))
  },
  '/login': {
    get: (req, res) => Promise.resolve({
      headers: { Location: '/admin', 'Set-Cookie': 'foo=bah' },
      statusCode: 302,
    }),
  },
  '/': {
    get: (req, res) => (console.log(req), Promise.resolve({
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ req: req.headers }),
    }))
  },
  '/logout': {
    get: (req, res) => Promise.resolve({
      // Max-Age for modern browsers, expires for ie6-8
      headers: { Location: '/', 'Set-Cookie': 'foo=; expires=Thu, 01 Jan 1970 00:00:00 GMT; Max-Age=0' },
      statusCode: 302,
    }),
  },
  '#': () => Promise.resolve({ statusCode: 404, body: 'Not Found' })
};

const handler = (req, res) => {
  const { method, url } = req;
  const defaults = {
    body: '',
    headers: { 'Content-Type': 'text/plain' },
    statusCode: 200
  };
  const route = (routes[url]) ? routes[url][method.toLowerCase()] : routes['#'];
  route(req, res).then(data => {
    const { body, headers, statusCode } = Object.assign(defaults, data);
    res.writeHead(statusCode, headers);
    res.write(body);
    res.end();
  });
};

const server = http.createServer(handler);

server.on('clientError', (err, socket) => {
  socket.end('HTTP/1.1 400 Bad Request\r\n\r\n');
});

server.listen(PORT, () => {
  console.log('http://127.0.0.1:%s', PORT);
});