circle

Minimalistic NodeJS API Server.

Install

$ npm install circle

Usage

Defining A Simple Server

var circle = require('circle')

var api = circle({
  '/person/:name/:surname': person,
  '/company/:id': company,
  '/': home
})

api.start(8080, 'localhost')

Routing

Accepting requests to URLs like /person/john/smith?email=john@smith.com

function person (reply, match) {
  reply(undefined, { name: match.params.name, surname: match.params.surname, email: match.params.query.email })
}

This will output:

{
        "ok": true,
        "result": [
                {
                        "name": "john",
                        "surname": "smith",
                        "email": "john@smith.com"
                }
        ]
}

Producing errors:

function company (reply, match) {
  reply({ not_implemented: true }) // returns error
}

It handles POST data and file uploads nicely:

function create (reply, match, post, files) {
  match.params
  // => { name: 'foo', age: 21 }

  files
  // => { profilePicture: { path: '/tmp/foo.tar.gz', size: 1024 }}

  reply (undefined, { created: true })
}

Streams

Reply functions are writable streams:

api = circle({
  '/readme': readme
})

function readme (reply) {
  fs.readFileStream('./README.md').pipe(reply)
}

JSONP

Circle outputs the response in JSONP format for requests made by passing "callback" parameter.

Formatting Output For Specific "Accept" Types

Circle servers will output JSON by default. To format the output for specific "Accept" header:

api.format('/person/:name/:surname', 'text/plain', function (context, match) {
  return {
    contentType: 'text/plain',
    response: 'Name: ' + context.result.name + ' Surname: ' + context.result.surname
  };
});

Will output below for curl http://localhost:8080/person/john/smith?email=john@smith.com:

Name: John
Surname: Smith
Email: john@smith.com