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//
// just to make these example a little bit interesting,
// make a little key value store with an http interface
// (see couchbd for a grown-up version of this)
//
// API:
// GET /
// retrive list of keys
//
// GET /[url]
// retrive object stored at [url]
// will respond with 404 if there is nothing stored at [url]
//
// POST /[url]
//
// JSON.parse the body and store it under [url]
// will respond 400 (bad request) if body is not valid json.
//
// TODO: cached map-reduce views and auto-magic sharding.
//
var Store = module.exports = function Store () {
this.store = {};
};
Store.prototype = {
get: function (key) {
return this.store[key]
},
set: function (key, value) {
return this.store[key] = value
},
handler:function () {
var store = this
return function (req, res) {
function send (obj, status) {
res.writeHead(200 || status,{'Content-Type': 'application/json'})
res.write(JSON.stringify(obj) + '\n')
res.end()
}
var url = req.url.split('?').shift()
if (url === '/') {
console.log('get index')
return send(Object.keys(store.store))
} else if (req.method == 'GET') {
var obj = store.get (url)
send(obj || {error: 'not_found', url: url}, obj ? 200 : 404)
} else {
//post: buffer body, and parse.
var body = '', obj
req.on('data', function (c) { body += c})
req.on('end', function (c) {
try {
obj = JSON.parse(body)
} catch (err) {
return send (err, 400)
}
store.set(url, obj)
send({ok: true})
})
}
}
}
}
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