custom $resource-ish factory

resource.js

module.exports = ["$http", "$q", function($http, $q) {

	/**
	* @param opts {object} - hash of options
	*  url
	*  method
	*  params
	*  body
	*
	* @returns promise
	*/

	function Resource() {
		var proto = resource.prototype = this.prototype;
		return resource;
		function resource(opts) {
			var url, args, method;
			if (!opts.hasOwnProperty("url") || !opts.hasOwnProperty("method"))
				throw new Error("must specify url and method in resource")
			url = urlGen(opts.params, opts.url, proto.baseUrl || "");
			args = opts.body ? [url, opts.body] : [url];
			method = opts.method.toLowerCase();
			return $q(function(resolve, reject) {
				$http[method].call(null, args).then(function(res) {
					resolve(res.data)
				});
			});
		}
	}

	Resource.prototype = {
		baseUrl: "/"
	};

	function urlGen(params, dirty, baseUrl) {
	    var arr = dirty.split("/");
	    var clean = "";
	    var i;
	    var slug;
	    var ready;
	    for (i = 0; i < arr.length; i++) {
	        slug = arr[i].substring(1, arr[i].length);
	        if (arr[i].indexOf(":") > -1 && params.hasOwnProperty(slug))
	            clean += params[slug] + "/";
	        else if (arr[i].indexOf(":") < 0)
	            clean += arr[i] + "/";
	    }
	    if (clean.charAt(clean.length - 1) === "/")
	      ready = clean.substring(0, clean.length - 1);
	    else
	      ready = clean;
	    return baseUrl + ready;
	}

	return Resource.call(Resource);
}]