havana-error

Havana error

An error response handler.

Havana error works with a request/response dispatcher such as Havana server, Havana browser or a library with an interchangeable API. When a dispatcher publishes a response.error event, Havana error will in turn publish a response.send event with a 404 response.

How to install

npm install havana-error

How to use

import Error from 'havana-error';
import Event from 'havana-event';
import Server from 'havana-server';

const event = new Event();

const reporting = {
  'level': 2, 
  'reporter': console.log,
};

const server = new Server({
  'event': event,
  'reporting': reporting,
});

new Error({
  'event': event,
  'reporting': reporting,
});

server.listen( 3000 );

Event list

Events take the form of Havana event or a library with an interchangeable API.

Publish

• response.send: Signifies that Havana error has handled a response error, publishing the response data for consumption by a request/response dispatcher.

Subscribe

• response.error: Allows a request/response dispatcher to notify Havana error that all registered handlers have failed to handled a request.

ES2015+

Havana error is written using ES2015+ syntax.

However, by default this module will use an ES5 compatible file that has been compiled using Babel.

In the dist directory there are four files, the default is error.server.js. The default when using a client-side bundler that supports the browser field spec is error.browser.js.

Havana error currently requires the Babel polyfill. You are expected to supply this yourself. However, as a courtesy you will also find error.server.with-polyfill.js and error.browser.with-polyfill.js in the dist directory.