Added get active listings helper function

lib/etsyjs/shop.js

@@ -43,6 +43,28 @@
       }]));
     };
 
+    Shop.prototype.activeListings = function(_arg, cb) {
+      var limit, offset, params, secret, token, _ref;
+      token = _arg.token, secret = _arg.secret, limit = _arg.limit, offset = _arg.offset;
+      params = {};
+      if (limit != null) {
+        params.limit = limit;
+      }
+      if (offset != null) {
+        params.offset = offset;
+      }
+      return (_ref = this.client).get.apply(_ref, ["/shops/" + this.shopId + "/listings/active", token, secret].concat(__slice.call(params), [function(err, status, body, headers) {
+        if (err) {
+          return cb(err);
+        }
+        if (status !== 200) {
+          return cb(new Error('Get active listings error'));
+        } else {
+          return cb(null, body, headers);
+        }
+      }]));
+    };
+
     return Shop;
 
   })();

src/etsyjs/shop.coffee

@@ -25,4 +25,17 @@ class Shop
       else
         cb null, body, headers
 
-module.exports = Shop
+  # Retrieves Listings associated to a Shop that are active
+  # '/shops/:shop_id/listings/active' GET
+  activeListings: ({token, secret, limit, offset}, cb) ->
+    params = {}
+    params.limit = limit if limit?
+    params.offset = offset if offset?
+    @client.get "/shops/#{@shopId}/listings/active", token, secret, params..., (err, status, body, headers) ->
+      return cb(err) if err
+      if status isnt 200
+        cb(new Error('Get active listings error'))
+      else
+        cb null, body, headers
+
+module.exports = Shop