Yet Another Event Promised Server

Simple promised node http request-response handler

How to install

npm i -S yeps

How to use

app.js

const App = require('yeps');

const app = module.exports = 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 }));
});

bin/www

#!/usr/bin/env node

const http = require('http');
const app = require('../app');

http
  .createServer(app.resolve())
  .listen(parseInt(process.env.PORT || '3000', 10));

package.json

"scripts": {
  "start": "node bin/www"
}

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
});

Using router

npm i -S yeps-router

app.js

const App = require('yeps');
const Router = require('yeps-router');

const app = module.exports = new App();
const router = new Router();

router.get('/').then(async (ctx) => {
  ctx.res.statusCode = 200;
  ctx.res.setHeader('Content-Type', 'application/json');
  ctx.res.end('{"status":"OK"}');     
});

app.then(router.resolve());

Using server

npm i -S yeps-server

bin/www

#!/usr/bin/env node
    
const server = require('yeps-server');

const app = require('../app');

server.createHttpServer(app);

Error handler

npm i -S yeps-error yeps-logger

app.js

const App = require('yeps');

const error = require('yeps-error');
const logger = require('yeps-logger');

const app = module.exports = new App();

app.all([
  error(),
  logger(),
]);

YEPS documentation