Issue #7: Added redeemGameKey method

README.md

@@ -160,3 +160,15 @@ 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.
+
+### redeemGameKey(gameKey[, callback])
+- `gameKey` - The Steam game key you want to redeem
+- `callback` - Optional. Called when the request completes.
+    - `err` - An `Error` object if the request fails, or `null` on success
+    - `eresult` - An `EResult` value from `SteamStore.EResult`
+    - `ekeyactivationresult` - A value from `SteamStore.EKeyActivationResult`
+    - `purchase_receipt_info` - Info about the redeemed key
+
+**v1.6.0 or later is required to use this method**
+
+Attempts to redeem a Steam game key on your account.

components/account.js

@@ -7,6 +7,9 @@ SteamStore.prototype.EPurchaseResult = EPurchaseResult;
 var EResult = require('../resources/EResult.js');
 SteamStore.prototype.EResult = EResult;
 
+var EKeyActivationResult = require('../resources/EKeyActivationResult.js');
+SteamStore.prototype.EKeyActivationResult = EKeyActivationResult;
+
 SteamStore.prototype.addPhoneNumber = function(number, bypassConfirmation, callback) {
 	if(typeof bypassConfirmation === 'function') {
 		callback = bypassConfirmation;
@@ -318,3 +321,30 @@ SteamStore.prototype.redeemWalletCode = function(code, callback) {
 	    });
     });
 };
+
+SteamStore.prototype.redeemGameKey = function(code, callback) {
+	var self = this;
+    self.request.post({
+        "uri": "https://store.steampowered.com/account/ajaxregisterkey/",
+        "form": {
+            "product_key": code,
+			"sessionid": this.getSessionID()
+        },
+        "json": true
+    }, function(err, response, body) {
+        if (!callback) {
+            return;
+        }
+
+        if (self._checkHttpError(err, response, callback)) {
+            return;
+        }
+
+        if (!body.success && !body.purchase_receipt_info) {
+            callback(new Error("Malformed response"));
+            return;
+        }
+
+        callback(null, body.success, body.purchase_result_details, body.purchase_receipt_info);
+    });
+};

resources/EKeyActivationResult.js

@@ -0,0 +1,27 @@
+/**
+ * @enum EKeyActivationResult
+ */
+module.exports = {
+    "Success": 0, // Key redeemed successfully
+    "UnexpectedError": 4, // Unexpected Error
+    "AlreadyInAccount": 9, // Account already has the product
+    "CountryRestriction": 13, // Product key not available in country
+    "InvalidProductKey": 14, // Invalid product key
+    "UsedProductKey": 15, // Product key already used
+    "GameRequired": 24, // Activating the product key requires another product in account
+    "PlayOnPS3": 36, // Game can only activated when played on PS3
+    "AccountBalanceKey": 50, // Key is a balance card
+    "TooManyActivations": 53, // Too many activations from account or IP
+
+    // Value-to-name mapping for convenience
+    "0": "Success",
+    "4": "UnexpectedError",
+    "9": "AlreadyInAccount",
+    "13": "CountryRestriction",
+    "14": "InvalidProductKey",
+    "15": "UsedProductKey",
+    "24": "GameRequired",
+    "36": "PlayOnPS3",
+    "50": "AccountBalanceKey",
+    "53": "TooManyActivations",
+};