cyclic-router

cyclic-router V5 is a routing library built for Cycle.js. Unlike previous versions, cyclic-router V5 is not a driver. It is a main function-wrapper (routerify) which relies on @cycle/history for driver source/sink interactions.

For older versions of cyclic-router, V4 and earlier please go to the old README

Installation

Using npm:

$ npm install --save @cycle/history # @cycle/history is a peerDependency of cyclic-router
$ npm install --save-dev @types/history # @cycle/history uses ReactTraining/history 
                                       # under the hood (For Typescript users only)
$ npm install --save cyclic-router

Routerify requires you to inject the route matcher. We'll use switch-path for our examples but other matching libraries could be adapted to be used here:

$ npm install --save switch-path

// using an ES6 transpiler, like babel
import {routerify} from 'cyclic-router'

// not using an ES6 transpiler
var routerify = require('cyclic-router').routerify

Basic Usage

import xs from 'xstream';
import {run} from '@cycle/run';
import {makeDOMDriver} from '@cycle/dom';
import {routerify} from 'cyclic-router';
import {makeHistoryDriver} from '@cycle/history';
import switchPath from 'switch-path';

function main(sources) {
  const pageSinks$ = sources.router.routedComponent({
    '/': HomeComponent,
    '/other': OtherComponent
  })(sources);
  
  return {
    DOM: pageSinks$.map(c => c.DOM).flatten(),
    router: xs.of('/other') // Notice use of 'router' sink name, 
                            // which proxies the original 'history' sink
  };
}

const mainWithRouting = routerify(main, switchPath)

run(mainWithRouting, {
  DOM: makeDOMDriver('#app'),
  history: makeHistoryDriver() // create history driver as usual,
                               // but it gets proxied by routerify
});

Routerify Options

Routerify accepts an options object like so: routerify(main, switchPath, options)

The options object conforms to the interface:

interface RouterOptions {
    basename?: string;
    historyName?: string;
    routerName?: string;
    omitHistory?: boolean;
}

basename - The root router path, defaults to /
historyName - The source/sink name associated with the raw history driver, defaults to history
routerName - The source/sink name you want exposed to your app which captures the functionality/streams associated with routerify. Defaults to router
omitHistory - Routerify hides the source/sink name associated with the raw history driver (given in the historyName option) from your app and only exposes the source/sink name associated with the router (given in the routerName option). Defaults to true, If you would like your app to have access to both the raw history source/sink and the router source/sink (injected by routerify), set this option to false

Route Parameters

This behavior changes based on the injected route matcher. In the case of switch-path, you can pass route parameters to your component by adding them to the component sources.

const routes = {
  '/:id': id => sources => YourComponent({props$: Observable.of({id}), ...sources})
}

Dynamically change route

You can dynamically change route from code by emitting inputs handled by the history driver.

...
import sampleCombine from 'xstream/extra/sampleCombine'

function main(sources) {
  // ...
  const homePageClick$ = sources.DOM.select(".home").events("click");
  const previousPageClick$ = sources.DOM.select(".previous").events("click");
  const nextPageClick$ = sources.DOM.select(".next").events("click");
  const oldPageClick$ = sources.DOM.select(".old").events("click");
  const aboutPageClick$ = sources.DOM.select(".about").events("click");
  const replacePageClick$ = sources.DOM.select(".replace").events("click");
  
  return {
    // ...
    router: xs.merge(
        // Go to page "/"
        homePageClick$.mapTo("/"),
        
        // Go back to previous page
        previousPageClick$.mapTo({ type: "goBack" }),
        
        // Go forward to next page
        nextPageClick$.mapTo({ type: "goForward" }),
        
        // Go back from 5 pages
        oldPageClick$.mapTo({ type: "go", value: -5 }),
        
        // Go to page "/about" with some state set to router's location
        aboutPageClick$.mapTo({ pathname: "/about", state: { some: "state" } })
        
        // Replace the current history entry with the same path, but with new state info
        replacePageClick$.compose(sampleCombine(sources.router.history$)).map(([_, route]) => {
          return { type: 'replace', pathname: route.pathname, state: { some: "different state" } }
        ))
    ),
  };
}

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