starting naive batch implementation

lib/neography/rest.rb

@@ -352,9 +352,31 @@ def execute_script(script)
         result = post("/ext/GremlinPlugin/graphdb/execute_script", options)
         result == "null" ? nil : result
       end
+
+      def batch(*args)
+        batch = []
+        Array(args).each_with_index do |c,i|
+          batch << {:id => i}.merge(get_batch(c))
+        end
+         options = { :body => batch.to_json, :headers => {'Content-Type' => 'application/json'} } 
+         post("/batch", options)
+      end
 
       private
 
+      def get_batch(args)
+        case args[0]
+          when :get_node
+            {:method => "GET", :to => "/node/#{get_id(args[1])}", :body => args[2]}
+          when :create_node
+            {:method => "POST", :to => "/node/", :body => args[1]}
+          when :set_node_property
+            {:method => "PUT", :to => "/node/#{get_id(args[1])}/properties/#{args[2].keys.first}", :body => args[2].values.first}
+          when :reset_node_properties
+            {:method => "PUT", :to => "/node/#{get_id(args[1])}/properties", :body => args[2]}
+        end
+     end
+
       def evaluate_response(response)
         code = response.code
         body = response.body

spec/integration/rest_batch_spec.rb

@@ -7,27 +7,93 @@
 
   describe "simple batch" do
     it "can get a single node" do
-      pending
+      new_node = @neo.create_node
+      new_node[:id] = new_node["self"].split('/').last
+      batch_result = @neo.batch [:get_node, new_node]
+      batch_result.first.should_not be_nil
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("body")
+      batch_result.first.should have_key("from")
+      batch_result.first["body"]["self"].split('/').last.should == new_node[:id]
     end
 
     it "can get multiple nodes" do
-      pending
-    end
+      node1 = @neo.create_node
+      node1[:id] = node1["self"].split('/').last
+      node2 = @neo.create_node
+      node2[:id] = node2["self"].split('/').last
 
-    it "can create a single node" do
-      pending
-    end
+      batch_result = @neo.batch [:get_node, node1], [:get_node, node2]
+      batch_result.first.should_not be_nil
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("body")
+      batch_result.first.should have_key("from")
+      batch_result.first["body"]["self"].split('/').last.should == node1[:id]
+      batch_result.last.should have_key("id")
+      batch_result.last.should have_key("body")
+      batch_result.last.should have_key("from")
+      batch_result.last["body"]["self"].split('/').last.should == node2[:id]
 
-    it "can create multiple nodes" do
-      pending
     end
 
-    it "can update a single node" do
-      pending
+    it "can create a single node" do
+      batch_result = @neo.batch [:create_node, {"name" => "Max"}]
+      batch_result.first["body"]["data"]["name"].should == "Max"
     end
 
-    it "can update multiple nodes" do
-      pending
+    it "can create multiple nodes" do
+      batch_result = @neo.batch [:create_node, {"name" => "Max"}], [:create_node, {"name" => "Marc"}]
+      batch_result.first["body"]["data"]["name"].should == "Max"
+      batch_result.last["body"]["data"]["name"].should == "Marc"
+    end
+
+    it "can update a property of a node" do
+      new_node = @neo.create_node("name" => "Max")
+      batch_result = @neo.batch [:set_node_property, new_node, {"name" => "Marc"}]
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("from")
+      existing_node = @neo.get_node(new_node)
+      existing_node["data"]["name"].should == "Marc"
+    end
+
+    it "can update a property of multiple nodes" do
+      node1 = @neo.create_node("name" => "Max")
+      node2 = @neo.create_node("name" => "Marc")
+      batch_result = @neo.batch [:set_node_property, node1, {"name" => "Tom"}], [:set_node_property, node2, {"name" => "Jerry"}]
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("from")
+      batch_result.last.should have_key("id")
+      batch_result.last.should have_key("from")
+      existing_node = @neo.get_node(node1)
+      existing_node["data"]["name"].should == "Tom"
+      existing_node = @neo.get_node(node2)
+      existing_node["data"]["name"].should == "Jerry"
+    end
+
+    it "can reset the properties of a node" do
+      new_node = @neo.create_node("name" => "Max", "weight" => 200)
+      batch_result = @neo.batch [:reset_node_properties, new_node, {"name" => "Marc"}]
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("from")
+      existing_node = @neo.get_node(new_node)
+      existing_node["data"]["name"].should == "Marc"
+      existing_node["data"]["weight"].should be_nil
+    end
+
+    it "can reset the properties of multiple nodes" do
+      node1 = @neo.create_node("name" => "Max", "weight" => 200)
+      node2 = @neo.create_node("name" => "Marc", "weight" => 180)
+      batch_result = @neo.batch [:reset_node_properties, node1, {"name" => "Tom"}], [:reset_node_properties, node2, {"name" => "Jerry"}]
+      batch_result.first.should have_key("id")
+      batch_result.first.should have_key("from")
+      batch_result.last.should have_key("id")
+      batch_result.last.should have_key("from")
+      existing_node = @neo.get_node(node1)
+      existing_node["data"]["name"].should == "Tom"
+      existing_node["data"]["weight"].should be_nil
+      existing_node = @neo.get_node(node2)
+      existing_node["data"]["name"].should == "Jerry"
+      existing_node["data"]["weight"].should be_nil
     end
 
     it "can get a single relationship" do