mirror of
https://gitlab.silvrtree.co.uk/martind2000/frontexpress.git
synced 2025-01-11 04:55:09 +00:00
Update README.md
This commit is contained in:
parent
ac746a2241
commit
1c4547b2f1
185
README.md
185
README.md
@ -1,6 +1,189 @@
|
||||
>
|
||||
>
|
||||
> ## Caution README in progress
|
||||
>
|
||||
>
|
||||
|
||||
# frontexpress
|
||||
|
||||
|
||||
Minimalist front end router framework a la [express](http://expressjs.com/)
|
||||
|
||||
[![Build Status](https://travis-ci.org/camelaissani/frontexpress.svg?branch=master)](https://travis-ci.org/camelaissani/frontexpress)
|
||||
[![Coverage Status](https://coveralls.io/repos/github/camelaissani/frontexpress/badge.svg?branch=master)](https://coveralls.io/github/camelaissani/frontexpress?branch=master)
|
||||
|
||||
```js
|
||||
import frontexpress from 'frontexpress';
|
||||
const app = frontexpress();
|
||||
|
||||
// listen HTTP GET request on path (/)
|
||||
app.get('/', (req, res) => {
|
||||
window.alert('Hello World');
|
||||
});
|
||||
|
||||
// Once DOM is loaded start listening HTTP requests
|
||||
document.addEventListener("DOMContentLoaded", (event) => {
|
||||
app.listen();
|
||||
});
|
||||
```
|
||||
|
||||
## Installation
|
||||
|
||||
```bash
|
||||
$ npm install frontexpress
|
||||
```
|
||||
|
||||
## Quick Start
|
||||
|
||||
The quickest way to get started with frontexpress is to clone [frontexpress sample](https://github.com/camelaissani/frontexpress) to generate an application as shown below:
|
||||
|
||||
Clone the git repository:
|
||||
|
||||
```bash
|
||||
$ git clone git@github.com:camelaissani/frontexpress-sample.git
|
||||
$ cd frontexpress-sample
|
||||
```
|
||||
|
||||
Install dependencies:
|
||||
|
||||
```bash
|
||||
$ npm install
|
||||
```
|
||||
|
||||
Start the server:
|
||||
|
||||
```bash
|
||||
$ npm start
|
||||
```
|
||||
|
||||
## Tests
|
||||
|
||||
Clone the git repository:
|
||||
|
||||
```bash
|
||||
$ git clone git@github.com:camelaissani/frontexpress.git
|
||||
$ cd frontexpress
|
||||
```
|
||||
|
||||
Install the dependencies and run the test suite:
|
||||
|
||||
```bash
|
||||
$ npm install
|
||||
$ npm test
|
||||
```
|
||||
|
||||
## Routing
|
||||
|
||||
### Basic routing
|
||||
|
||||
Routing allows to link the frontend application with HTTP requests to a particular URI (or path).
|
||||
The link can be specific to an HTTP request method (GET, POST, and so on).
|
||||
|
||||
The following examples illustrate how to define simple routes.
|
||||
|
||||
Listen an HTTP GET request on URI (/):
|
||||
|
||||
```js
|
||||
app.get('/', (req, res) => {
|
||||
window.alert('Hello World');
|
||||
});
|
||||
```
|
||||
|
||||
Listen an HTTP POST request on URI (/):
|
||||
|
||||
```js
|
||||
app.post('/', (req, res) => {
|
||||
window.alert('Got a POST request at /');
|
||||
});
|
||||
```
|
||||
|
||||
### Route paths
|
||||
|
||||
Route paths, in combination with a request method, define the endpoints at which requests can be made.
|
||||
Route paths can be strings (see basic routing section), or regular expressions.
|
||||
|
||||
This route path matches all GET request paths which start with (/api/):
|
||||
|
||||
```js
|
||||
app.get(/^api\//, (req, res) => {
|
||||
console.log(`api was requested ${req.uri}`);
|
||||
});
|
||||
```
|
||||
|
||||
### Route handlers
|
||||
|
||||
You can provide multiple callback functions to handle a request. Invoking ```next()``` function allows to pass the control to subsequent routes.
|
||||
Whether ```next()``` method is not called the handler chain is stoped
|
||||
|
||||
```js
|
||||
const h1 = (req, res, next) => { console.log('h1!'); next(); };
|
||||
const h2 = (req, res, next) => { console.log('h2!') };
|
||||
const h3 = (req, res, next) => { console.log('h3!'); next(); };
|
||||
|
||||
app.get('/example/a', h1);
|
||||
app.get('/example/a', h2);
|
||||
app.get('/example/a', h3);
|
||||
```
|
||||
|
||||
A response to a GET request on path (/example/a) displays:
|
||||
|
||||
```
|
||||
h1!
|
||||
h2!
|
||||
```
|
||||
|
||||
h3 is ignored because ```next()``` function was not invoked.
|
||||
|
||||
### app.route()
|
||||
|
||||
You can create chainable route handlers for a route path by using ```app.route()```.
|
||||
|
||||
```js
|
||||
app.route('/book')
|
||||
.get((req, res) => { res.send('Get a random book') })
|
||||
.post((req, res) => { res.send('Add a book') })
|
||||
.put((req, res) => { res.send('Update the book') });
|
||||
```
|
||||
|
||||
### frontexpress.Router
|
||||
|
||||
Use the ```frontexpress.Router``` class to create modular, mountable route handlers.
|
||||
|
||||
Create a router file named ```birds.js``` in the app directory, with the following content:
|
||||
|
||||
```js
|
||||
import frontexpress from 'frontexpress';
|
||||
|
||||
const router = frontexpress.Router();
|
||||
|
||||
// middleware that is specific to this router
|
||||
router.use((req, res, next) => {
|
||||
console.log(`Time: ${Date.now()}`);
|
||||
next();
|
||||
});
|
||||
|
||||
// react on home page route
|
||||
router.get('/', function(req, res) => {
|
||||
document.querySelector('.content').innerHTML = '<p>Birds home page</p>';
|
||||
});
|
||||
|
||||
// react on about route
|
||||
router.get('/about', (req, res) => {
|
||||
document.querySelector('.content').innerHTML = '<p>About birds</p>';
|
||||
});
|
||||
|
||||
export default router;
|
||||
```
|
||||
|
||||
Then, load the router module in the app:
|
||||
|
||||
```js
|
||||
import birds from './birds';
|
||||
...
|
||||
app.use('/birds', birds);
|
||||
```
|
||||
|
||||
The app will now be able to react on requests (/birds) and (/birds/about)
|
||||
|
||||
## License
|
||||
|
||||
[MIT](LICENSE)
|
||||
|
Loading…
Reference in New Issue
Block a user