Server

Simple promised node http request-response handler.

Each Node.js server is a handler for http(s) server request event:

Example:

const http = require('http');

const server = http.createServer( (req, res) => {
  ctx.res.statusCode = 200;
  res.end('okay');
});

Anatomy of an HTTP Transaction

There are many popular frameworks like express.js or koa created to handle user requests.

But all of them use ideas from other programming languages or they are too old.

Skazka Server created with deep understanding of JavaScript core (and node.js), its new ideas like promises and async/await.

Core of the server was created to resolve highload problems, work as a separate server or serverless.

And performance is the main reason to maintain this server because in real life you need to pay for each millisecond.

How to install

npm i @skazka/server

With yarn:

yarn add @skazka/server

How to use

const App = require('@skazka/server');

const app = new App();
    
app.then(async (ctx) => {
  ctx.res.statusCode = 200;
  ctx.res.setHeader('Content-Type', 'application/json');
  ctx.res.end('{"status":"OK"}');
});
    
app.catch(async (error, ctx) => {
  ctx.res.statusCode = 500;
  ctx.res.setHeader('Content-Type', 'application/json');
  ctx.res.end(JSON.stringify({ error }));
});

module.exports = app;

Breaking chain

app.then(async (ctx) => {
  ctx.res.statusCode = 200;
  ctx.res.setHeader('Content-Type', 'application/json');
  ctx.res.end('{"status":"OK"}');
      
  return Promise.reject();
}).then(async () => {
  // it won't work
}).catch(async () => {
  // it won't work
});

Real example

Add http server, error handler, logger, router, request and response:

npm i @skazka/server-http @skazka/server-router @skazka/server-error @skazka/server-logger @skazka/server-request @skazka/server-response
      

With yarn:

yarn add @skazka/server-http @skazka/server-router @skazka/server-error @skazka/server-logger @skazka/server-request @skazka/server-response

const App = require('@skazka/server');
const Router = require('@skazka/server-router');
        
const error = require('@skazka/server-error');
const logger = require('@skazka/server-logger');
        
const request = require('@skazka/server-request');
const response = require('@skazka/server-response');
        
const server = require('@skazka/server-http');
        
const app = new App();
const router = new Router();
        
app.all([
  error(),
  logger(),
  request(),
  response(),
]);
    
app.then(async (ctx) => {
  // code for each request
  console.log(ctx.request);
});
    
router.get('/data').then(async (ctx) => {
  return ctx.response('data'); 
});
        
app.then(router.resolve());
        
server.createHttpServer(app);