StackMob Node Proxy

server-proxy.js

// proxy all API requests
function proxy(method, path, headers, data) {
    var defer = q.defer(), request,
        pubKey = '****';

    // filter paramaters contained in header, to avoid
    // incorrectly identifying client domain and agent in request
    headers = _.pick(headers, ['x-stackmob-api-key', 'x-stackmob-proxy-plain', 'x-stackmob-api-key-' + pubKey, 'accept', 'content-type', 'content-length', 'authorization']);
    // format headers
    headers = {
        'X-StackMob-API-Key': headers['x-stackmob-api-key'],
        'X-StackMob-Proxy-Plain': headers['x-stackmob-proxy-plain'],
        'Accept': headers.accept,
        'Content-Type': headers['content-type'] || 'application/json',
        'Authorization': headers.authorization
    }; headers['X-StackMob-API-Key' + pubKey] = pubKey;
    // add content-length buffer to header, if data exists
    if (data) headers['Content-Length'] = Buffer.byteLength(data);

    // create request
    request = http.request({
        host: 'api.stackmob.com',
        port: 80,
        path: path,
        method: method,
        headers: headers
    }, function(res) { defer.resolve(res);});

    // append data to request, if exists
    if (data) request.write(data);
    // close request
    request.end();
    // return promise
    return defer.promise;
};