bvenkatr / my-koa

https://github.com/koajs/kick-off-koa

https://github.com/koajs/koa/blob/master/docs/guide.md#debugging-koa

// app.get("getRata, ",(req, res) => { // res.statusCode = 404; // const ctx = this.createContext(req, res); // const onerror = err => ctx.onerror(err); // const handleResponse = () => respond(ctx); // onFinished(res, onerror); // return fn(ctx).then(handleResponse).catch(onerror); // });

'use strict'; var Koa = require('koa'); var app = new Koa();

let port = process.argv[2] || 3000;

app.use(async (ctx, next) => { //TODO this.path is not correct to get url path, so get path from ctx if (this.path !== '/') { await next(); }

console.log("I should be second one"); ctx.body = 'we are at home!'; });

app.use(async (ctx, next) => { console.log("I should be first one"); });

if (!module.parent) app.listen(port , function () { console.log(Web Server is listening at ${port}) });

app.use(async (ctx, next) => { if (ctx.method !== "POST") { return await next; } let body = await coBodyParser(ctx); // use below url to work with coBodyParser // curl -H "Content-Type: application/x-www-form-urlencoded" -X POST -d '{"name" : "koa"}' localhost:4000

//use json and make a request from curl like below
// let body = await coBodyParser.json(ctx);
//curl -H "Content-Type: application/json" -X POST -d '{"name" : "koa"}' localhost:4000

// if body.name not exist, respond `400`
if (!body.name) ctx.throw(400, '.name required');
ctx.body = body.name.toUpperCase();

});

/** To close a server const app = new Koa(); const _server = app.listen(3000); // start

_server.close(); // stop ///

//////////////////////////////////////////////////////////////////////// var destroyable = require('server-destroy'); var http = require('http');

var server = http.createServer(app.callback()); server.listen(); destroyable(server);

// then server.destroy();

//////////////////////////////////////////////////////////////////////// Since Express comes with its own routing, but Koa does not have

• any in-built routing, but there are third party libraries available
• koa-router and koa-route for routing.
• Similarly just like we have helmet for security in Express, For koa
• we have koa-helmet available and the list goes on for koa third
• party available libraries. ////////////////

/** koa-session uses cookie-based sessions, and koa-generic-session is a more generic implementation, as in Express.

https://github.com/koajs/session https://github.com/koajs/generic-session */