Koa-better-response-handler NPM

koa-better-response-handler

Code Size

Express.js response handler interface for Koa.js (identical).

🦄 Inspired from Express.js.
🔥 Amiable and lightweight handler.
💅🏻 Express-style handler (.send(), .json(), .render(), .statusCode() etc.)
🎈 Support for .render() methods through koa-views middelware.
📍 Support for .jsonp() methods through koa-safe-jsonp middelware.
⚖️ Tiny Bundle.

`Installation`

# koa-is-json: need when you use `.json()` to check passed data is json.

# npm
$ npm i koa-better-response-handler koa-is-json
# yarn
$ yarn add koa-better-response-handler koa-is-json

`Usage`

This is a practical example of how to use.

const Koa = require('koa');
const responseHandler = require('koa-better-response-handler');

const app = new Koa();

app.use(responseHandler());
// ==> ctx.statusCode(200).send('Hello World')
// ==> ctx.statusCode(200).json({ msg: 'Hello World' })
// ==> ctx.statusCode(200).sendStatus() // OK

`OPTIONS`

By default koa-better-response-handler use koa-is-json to validate the passed data but you can ignore the installation of koa-is-json and use your custom json checker function by pass and object like this:

app.use(
  responseHandler({
    isJSON: (data) => {
      /* custom json checker */
    }
  })
);

`Note`

We don't support render and jsonp methods purely by this module we expect that use some others packages like koa-views and koa-safe-jsonp.

`.render`

Make sure to use koa-views middelware first.

const Koa = require('koa');
const views = require('koa-views'); // support render method.
const responseHandler = require('koa-better-response-handler');

const app = new Koa();

app
  .use(views()) // --> ctx.render().
  .use(responseHandler());

More information about koa-views

`.jsonp`

Make sure to use koa-safe-jsonp middelware first.

const Koa = require('koa');
const jsonp = require('koa-safe-jsonp'); // support jsonp method.
const responseHandler = require('koa-better-response-handler');

const app = new Koa();

jsonp(app); // --> ctx.jsonp().

app.use(responseHandler());

More information about koa-safe-jsonp