Server-Side Development with Hapi.js — Cookies and Logs

Photo by Matt Whitacre on Unsplash

Hapi.js is a small Node framework for developing back end web apps.

In this article, we’ll look at how to create back end apps with Hapi.js.

Getting Cookies

We can get cookies with the reques.state property.

For instance, we can write:

const Hapi = require('@hapi/hapi');
const init = async () => {
  const server = Hapi.server({
    port: 3000,
    host: '0.0.0.0'
  });
  server.route({
    path: '/',
    method: 'GET',
    handler(request, h) {      
      const value = request.state.data;      
      return h.response(value);
    },
  });
  await server.start();
  console.log('Server running on %s', server.info.uri);
};
process.on('unhandledRejection', (err) => {
  console.log(err);
  process.exit(1);
});
init();

We get the data cookie with the request.state.data property.

When we send the Cookie request header with data=foo as the value, then we see foo in the response.

Clearing a Cookie

We can clear a cookie by calling the unstate method.

For example, we can write:

const Hapi = require('@hapi/hapi');
const init = async () => {
  const server = Hapi.server({
    port: 3000…