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Routing for static site generators, build systems and task runners, heavily based on express.js routes but works with file objects. Used by Assemble, Verb, and Template.

Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your :heart: and support.

Install

Install with npm:

$ npm install --save en-route

How it works

en-route is a different, but similar concept to routes you might be familiar with, like express routes. The general idea is, you can:

  1. Use middleware to modify file objects
  2. Define routes, to determine whether or not a middleware function should run on a given file.
  3. Define handlers for running specific middleware at specific points in your application or build.

See the examples folder for a number of different examples of how en-route works.

Usage

const Router = require('en-route');
const router = new Router();

API

Router

Create a new Router with the given options.

Params

Example

// initialize a router with handler methdods
const router = new Router({ handlers: ['preWrite', 'postWrite'] });

.handlers

Register one or more middleware handler methods. Handler methods may also be added by passing an array of handler names to the constructor on the handlers option.

Params

Example

router.handlers(['onLoad', 'preRender']);

.handler

Register a middleware handler method.

Params

Example

router.handler('onLoad');

.route

Create a new router instance with all handler methods bound to the given pattern.

Params

Example

const router = new Router({ handlers: ['before', 'after'] });
const file = { path: '/foo', content: '' };

router.route('/foo')
  .before(function(file) {
    file.content += 'foo';
  })
  .after(function(file) {
    file.content += 'bar';
  });

router.handle(file)
  .then(() => {
    assert.equal(file.content, 'foobar');
  });

.handle

Run a middleware methods on the given file.

Params

Example

// run a specific method
router.handle('onLoad', file)
  .then(file => console.log('File:', file))
  .catch(console.error);

// run multiple methods
router.handle('onLoad', file)
  .then(file => router.handle('preRender', file))
  .catch(console.error);

// run all methods
router.handle(file)
  .then(file => console.log('File:', file))
  .catch(console.error);

.all

Runs all handler methods on the given file, in series.

Params

Example

router.all(file => {
  file.data.title = 'Home';
});

.mixin

Mix router methods onto the given object.

Params

Example

const router = new Router();
const obj = {};
router.handlers(['before', 'after']);
router.mixin(obj);
console.log(obj.before) //=> [function]

Route

Create a new Route with the given pattern, handler functions and options.

Params

Example

const fn = file => file.count++;
const Route = require('en-route').Route;
const route = new Route('/(.*)', [fn, fn, fn]);
const file = { path: '/foo', count: 0 };

route.handle(file)
  .then(file => {
    console.log(file.count); // 3
  });

.all

Register one or more handler functions to be called on all layers on the route.

Params

Example

route.all(function(file) {
  file.data.title = 'Home';
});
route.all([
  function(file) {},
  function(file) {}
]);

.handle

Run a middleware stack on the given file.

Params

Example

route.handle(file)
  .then(file => console.log('File:', file))
  .catch(console.error);

.layer

Push a layer onto the stack for a middleware functions.

Params

Example

route.layer(/foo/, file => {
  // do stuff to file
  file.layout = 'default';
});

.layers

Push a layer onto the stack for one or more middleware functions.

Params

Example

route.layers(/foo/, function);
route.layers(/bar/, [function, function]);

Layer

Create a new Layer with the given pattern, handler function and options.

Params

Example

const layer = new Layer('/', file => {
  // do stuff to file
  file.extname = '.html';
});

.handle

Calls the layer handler on the given file if the file.path matches the layer pattern.

Params

Example

layer.handle(file)
  .then(() => console.log('Done:', file))
  .then(console.error)

.match

Attempts to match a file path with the layer pattern. If the path matches, an object of params is returned (see path-to-regexp for details), otherwise null is returned.

Params

Example

const layer = new Layer('/:name');
console.log(layer.match('/foo')) //=> { name: 'foo' }

Release history

v2.0.0

Breaking changes

v1.0.0

Breaking changes

About

<details> <summary><strong>Contributing</strong></summary>

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

</details> <details> <summary><strong>Running Tests</strong></summary>

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test
</details> <details> <summary><strong>Building docs</strong></summary>

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb
</details>

Related projects

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Contributors

CommitsContributor
101jonschlinkert
35doowb

Author

Brian Woodward

Jon Schlinkert

License

Copyright © 2018, Jon Schlinkert. Released under the MIT License.


This file was generated by verb-generate-readme, v0.8.0, on November 11, 2018.