Sinodetra NPM | npm.io

Sinodetra

Minimal Sinatra like router for node.js

Installation

npm install sinodetra

Usage

At first, (install and) require Sinodetra within your script and specify your preferred port (8000 in this example).

var app = require('sinodetra')(8000);

That’s it, you’re able to add routes now. Sinodetra extends node’s HTTP server by providing get, post, put, and delete methods. You can add routes like this.

app.get('/', function(request, response) {
	response.plain('Hello world!');
});

app.get('/user/:user', function(request, response, user) {
	response.html('Hello, <strong>' + user + '</strong>');
});

app.get('/show/([0-9]+)', function(request, response, id) {
	response.html('Hello, <strong>#' + id + '</strong>');
});

As you can see, you can also use regular expressions within your route definitions. For a better readability, Sinodetra provides the opportunity to use placeholders (see :user above). However, these placeholders are nothing but a regular expression in the end.

In addition, Sinodetra extends node’s HTTP ServerResponse by providing html, plain, and json methods. These methods are actually shortcuts for the likewise provided send method, which allows you to customize the HTTP content type and status code for your response.

response.send('Hello World', 200, 'text/html');

Using response.send() you can set the HTTP content type and status code to whatever you need.

And—last but not least—there’s a way to define a callback if no routes match the requested path. This is normally used to display some fancy 404 error.

app.error(function(request, response) {
	response.plain('404 Not Found');
});

Parameters

When you’re building applications using Sinodetra, you’ll need to get information from your users. Kindly, grabbing data from the request is an easy enough process. You can access all parameters by using the request.params object.

app.get('/test', function(request, response) {
	response.plain('ID = ' + request.params.id);
});

Alternatively, you can use the provided request.param method, which returns the parameter in case it was provided or false otherwise.

app.get('/test', function(request, response) {
	response.plain('ID = ' + request.param('id'));
});

Sinodetra will try to detect what kind of data was sent within a request. If it’s JSON, request.body will be the parsed JSON object. Otherwise, Sinodetra assumes that the information was passed as application/x-www-form-urlencoded and parse the query string.

Assuming you execute a POST request containing demo=Lorem&id=Ipsum to /test?id=123, Sinodetra will merge those parameters, using GET parameters as the base and overwriting existing keys with the data from the original methods. Thus, the previous example would result the following request.params object.

{
    "demo": "Lorem",
    "id": "Ipsum"
}

Please note that Sinodetra has no nice way to handle file uploads (yet!).

Examples

app.get('/', function(request, response) {
	response.plain('Hello world!');
});

app.get('/say/:greeting/to/:person', function(request, response, greeting, person) {
	response.html('<b>' + greeting + '</b>, ' + person + '!');
});

app.get('/([0-9]+)/plus/([0-9]+)', function(request, response, one, two) {
	response.plain((parseInt(one, 10) + parseInt(two, 10)).toString());
});

app.error(function(request, response) {
	response.plain('404');
});