Added ability to get gem value for an item and to turn items into gems

components/market.js

@@ -29,3 +29,75 @@ SteamCommunity.prototype.getMarketApps = function(callback) {
 		}
 	}, "steamcommunity");
 };
+
+/**
+ *
+ * @param {int} appid
+ * @param {int|string} assetid
+ * @param {function} callback
+ */
+SteamCommunity.prototype.getGemValue = function(appid, assetid, callback) {
+	this._myProfile({
+		"endpoint": "ajaxgetgoovalue/",
+		"qs": {
+			"sessionid": this.getSessionID(),
+			"appid": appid,
+			"contextid": 6,
+			"assetid": assetid
+		},
+		"checkHttpError": false,
+		"json": true
+	}, null, (err, res, body) => {
+		if (err) {
+			callback(err);
+			return;
+		}
+
+		if (body.success && body.success != 1) {
+			let err = new Error(body.message || SteamCommunity.EResult[body.success]);
+			err.eresult = err.code = body.success;
+			callback(err);
+			return;
+		}
+
+		if (!body.goo_value || !body.strTitle) {
+			callback(new Error("Malformed response"));
+			return;
+		}
+
+		callback(null, {"promptTitle": body.strTitle, "gemValue": parseInt(body.goo_value, 10)});
+	});
+};
+
+SteamCommunity.prototype.turnItemIntoGems = function(appid, assetid, expectedGemsValue, callback) {
+	this._myProfile({
+		"endpoint": "ajaxgrindintogoo/",
+		"json": true,
+		"checkHttpError": false
+	}, {
+		"appid": appid,
+		"contextid": 6,
+		"assetid": assetid,
+		"goo_value_expected": expectedGemsValue,
+		"sessionid": this.getSessionID()
+	}, (err, res, body) => {
+		if (err) {
+			callback(err);
+			return;
+		}
+
+		if (body.success && body.success != 1) {
+			let err = new Error(body.message || SteamCommunity.EResult[body.success]);
+			err.eresult = err.code = body.success;
+			callback(err);
+			return;
+		}
+
+		if (!body['goo_value_received '] || !body.goo_value_total) { // lol valve
+			callback(new Error("Malformed response"));
+			return;
+		}
+
+		callback(null, {"gemsReceived": parseInt(body['goo_value_received '], 10), "totalGems": parseInt(body.goo_value_total, 10)});
+	})
+};

index.js

@@ -458,10 +458,12 @@ SteamCommunity.prototype._myProfile = function(endpoint, form, callback) {
 	}
 
 	function completeRequest(url) {
-		var options = {
+		var options = {};
-			"uri": "https://steamcommunity.com" + url + "/" + endpoint,
+		if (endpoint.endpoint) {
-			"method": "GET"
+			options = endpoint;
-		};
+			options.uri = "https://steamcommunity.com" + url + "/" + endpoint.endpoint;
+			options.method = "GET";
+		}
 
 		if (form) {
 			options.method = "POST";