Added addFreeLicense method

README.md

@@ -212,3 +212,12 @@ redeemable, the callback will be invoked with an `Error` passed as the first par
 **v1.5.0 or later is required to use this method**
 
 Updates your account's display languages for the Steam store.
+
+### addFreeLicense(subID[, callback])
+- `subID` - The ID of the free-on-demand package you would like to claim
+- `callback` - Optional. Called when the request completes.
+	- `err` - An `Error` object on failure, or `null` on success
+
+**v2.0.0 or later is required to use this method**
+
+Request to add an eligible free-on-demand package to your Steam account.

components/licenses.js

@@ -0,0 +1,37 @@
+const StdLib = require('@doctormckay/stdlib');
+
+const SteamStore = require('../index.js');
+
+/**
+ * Add an eligible free-on-demand license to your Steam account.
+ * @param {int} subID - The ID of the free-on-demand sub you want to claim
+ * @param {function} [callback]
+ * @returns {Promise}
+ */
+SteamStore.prototype.addFreeLicense = function(subID, callback) {
+	return StdLib.Promises.callbackPromise(null, callback, true, (accept, reject) => {
+		this.request.post({
+			"uri": "https://store.steampowered.com/checkout/addfreelicense",
+			"form": {
+				"action": "add_to_cart",
+				"sessionid": this.getSessionID(),
+				"subid": subID
+			}
+		}, (err, response, body) => {
+			if (this._checkHttpError(err, response, reject)) {
+				return;
+			}
+
+			let match = body.match(/<span class="error">([^<]+)<\/span>/);
+			if (match) {
+				return reject(new Error(match[1]));
+			}
+
+			if (!body.includes('<h2>Success!</h2>')) {
+				return reject(new Error('Malformed response'));
+			}
+
+			return accept();
+		});
+	});
+};

index.js

@@ -100,3 +100,4 @@ SteamStore.prototype._checkHttpError = function(err, response, callback) {
 
 require('./components/account.js');
 require('./components/gifts.js');
+require('./components/licenses.js');

package.json

@@ -1,6 +1,7 @@
 {
 	"name": "steamstore",
-	"version": "1.7.4",
+	"version": "2.0.0",
+	"private": true,
 	"description": "Interacts with the store.steampowered.com site for account management",
 	"keywords": [
 		"steam",
@@ -23,8 +24,12 @@
 		"url": "https://github.com/DoctorMcKay/node-steamstore.git"
 	},
 	"dependencies": {
+		"@doctormckay/stdlib": "^1.7.0",
 		"cheerio": "^0.22.0",
-		"request": "^2.87.0",
-		"steamid": "^1.0.0"
+		"request": "^2.88.0",
+		"steamid": "^1.1.0"
+	},
+	"engines": {
+		"node": ">=8.0.0"
 	}
 }