adding get node and set node properties

lib/neography/rest.rb

@@ -7,23 +7,34 @@ class Rest
     class << self
 
     def get_root
-      rescue_404(get('/'))
+      rescue_ij { get('/') }
     end
 
       def create_node(*args)
         if args[0].respond_to?(:each_pair) && args[0] 
          options = { :body => args[0].to_json, :headers => {'Content-Type' => 'application/json'} } 
-         rescue_404(post("/node", options))
+         rescue_ij { post("/node", options) }
         else
-         rescue_404(post("/node"))
+         rescue_ij { post("/node") }
         end
       end
 
+     def get_node(id)
+       rescue_ij { get("/node/#{id}") }
+     end
+
+      def set_node_properties(id, properties)
+        options = { :body => properties.to_json, :headers => {'Content-Type' => 'application/json'} } 
+        rescue_ij { put("/node/#{id}/properties", options) }
+      end
 
      private
 
-      def rescue_404(response)
+# Rescue from Invalid JSON error thrown by Crack Gem
+
+      def rescue_ij(&block) 
         begin
+          response = yield
           response = response.parsed_response
         rescue 
           response = nil

spec/integration/rest_spec.rb

@@ -27,4 +27,36 @@
     end
   end
 
+  describe "get_node" do
+    it "can get a node that exists" do
+      existing_node = Neography::Rest.get_node(1)
+      existing_node.should_not be_nil
+      existing_node.should have_key("self")
+      existing_node["self"].split('/').last.should == "1"
+    end
+
+    it "returns nil if it tries to get a node that does not exist" do
+      existing_node = Neography::Rest.get_node(9999)
+      existing_node.should be_nil
+    end
+  end
+
+  describe "set_node_properties" do
+    it "can set a node's properties" do
+      new_node = Neography::Rest.create_node
+      new_node[:id] = new_node["self"].split('/').last
+      Neography::Rest.set_node_properties(new_node[:id], {"weight" => 200, "eyes" => "brown"})
+      existing_node = Neography::Rest.get_node(new_node[:id])
+      existing_node["data"]["weight"].should == 200
+      existing_node["data"]["eyes"].should == "brown"
+    end
+
+    it "returns nil if it fails to set properties on a node that does not exist" do
+      new_node = Neography::Rest.create_node
+      new_node[:id] = new_node["self"].split('/').last
+      Neography::Rest.set_node_properties(new_node[:id].to_i + 1, {"weight" => 200, "eyes" => "brown"}).should be_nil
+    end
+  end
+
+
 end