http.js

"use strict";

var http = require("http");

function HttpError(statusCode) {
	this.name = "HttpError";
	this.statusCode = statusCode;
	this.message = "Recieved status code " + statusCode;
}
HttpError.prototype = Error.prototype;

function request(method, path, data, callback) {
	var req = http.request({ method: method, path: path }, function(res) {
		var resData = "";

		if (res.statusCode >= 400) {
			callback(new HttpError(res.statusCode));
			return;
		}

		res.on("data", function(buf) {
			resData += buf;
		});
		res.on("error", function(err) {
			callback(err);
		});

		res.on("end", function() {
			callback(undefined, resData);
		});
	});
	if (data !== undefined) {
		req.write(data);
	}
	req.end();
}

function get(path, callback) {
	request("GET", path, undefined, callback);
}

function put(path, data, callback) {
	request("PUT", path, data, callback);
}

function getJson(path, callback) {
	get(path, function(err, data) {
		if (err) {
			callback(err);
			return;
		}
		callback(undefined, JSON.parse(data));
	});
}

function putJson(path, data, callback) {
	put(path, JSON.stringify(data), function(err, resData) {
		if (err) {
			callback(err);
			return;
		}
		callback(undefined, JSON.parse(resData));
	});
}

module.exports = {
	get: get,
	getJson: getJson,
	put: put,
	putJson: putJson
};