diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index cf4504b..d324b19 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -28,7 +28,7 @@
 public class Instance extends Entity {
 	private String name;
 	private State state;
-	private StageModel stage;
+	private String stage;
 
 	private HashMap<String, Area> areaMap = new HashMap<>();
 	private HashMap<String, Object> objMap = new HashMap<>();
@@ -43,7 +43,7 @@
 	 * (�����͌����_�ł̉��̂���)
 	 * @param name �C���X�^���X��
 	 */
-	public Instance(String name, State state, StageModel stageModel) {
+	public Instance(String name, State state, String stageModel) {
 		setName(name);
 		setState(state);
 		setStage(stageModel);
@@ -57,7 +57,7 @@
 		return state;
 	}
 	
-	public StageModel getStage() {
+	public String getStage() {
 		return stage;
 	}
 
@@ -99,7 +99,7 @@
 		this.state = state;
 	}
 	
-	public void setStage(StageModel stage) {
+	public void setStage(String stage) {
 		this.stage = stage;
 	}
 
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index 6d44cf2..45039ed 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -53,7 +53,7 @@
 	 * @param stageModel
 	 * @return
 	 */
-	public IDAddressedEntity createInstance(String name, Instance.State state, StageModel stageModel) {
+	public IDAddressedEntity createInstance(String name, Instance.State state, String stageModel) {
 		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC, instanceMap.keySet());
 		Instance instance = new Instance(name, state, stageModel);
 		instanceMap.put(id, instance);
diff --git a/src/main/java/cactusServer/resources/InstancesRest.java b/src/main/java/cactusServer/resources/InstancesRest.java
index 38e6427..ebd3de6 100644
--- a/src/main/java/cactusServer/resources/InstancesRest.java
+++ b/src/main/java/cactusServer/resources/InstancesRest.java
@@ -3,6 +3,9 @@
 import java.util.HashSet;
 import java.util.Map;
 
+import javax.validation.Valid;
+import javax.ws.rs.BeanParam;
+import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.FormParam;
 import javax.ws.rs.GET;
@@ -14,6 +17,8 @@
 import javax.ws.rs.QueryParam;
 import javax.ws.rs.core.MediaType;
 
+import org.glassfish.jersey.process.internal.RequestScoped;
+
 import cactusServer.entities.AddressedEntity;
 import cactusServer.entities.Angle;
 import cactusServer.entities.Area;
@@ -32,6 +37,7 @@
 
 
 @Path("/instances")
+@RequestScoped
 public class InstancesRest {
 	public static final String INSTANCES_URI = "/CactusServer/rest/instances";
 	public InstancesRest() {
@@ -91,34 +97,35 @@
 	
 
 
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@FormParam("name") String name, @FormParam("state") Instance.State state, @FormParam("stageModel") StageModel stageModel) {
-//		IDAddressedEntity ae = Instances.getInstance().createInstance(name, state, stageModel);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + ae.getId()), ae.getBody());
-//	}
-//	
-//	@Path("/{instanceId}/areas")
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("name") String name, 
-//			@FormParam("region") Plain[] region, @FormParam("permissions") HashSet<Allowed> permissions) {
-//		Instance instance = Instances.getInstance().getInstance(instanceId);
-//		IDAddressedEntity ae = instance.createArea(name, region, permissions);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/areas/" + ae.getId()), ae.getBody());
-//	}
-//	
-//	@Path("/{instanceId}/objects")
-//	@POST
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("position") Position3D position,
-//			@FormParam("velocity") Velocity3D velocity, @FormParam("angularVelocity") AngularVelocity3D angularVelocity,
-//			@FormParam("angle") Angle angle, @FormParam("attribute") Attribute attribute, @FormParam("model") ObjectModel model) {
-//		Instance instance = Instances.getInstance().getInstance(instanceId);
-//		IDAddressedEntity ae = instance.createObject(position, velocity, angularVelocity, angle, attribute, model);
-//		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/objects/" + ae.getId()), ae.getBody());
-//	} 
-//	
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity create(@FormParam("int") int a, @FormParam("name") String name, @FormParam("state") Instance.State state, @FormParam("stageModel") String stageModel) {
+		System.out.println(a);
+		IDAddressedEntity ae = Instances.getInstance().createInstance(name, Instance.State.AVAILABLE, "11111");
+		return new URIAddressedEntity((INSTANCES_URI + "/" + ae.getId()), ae.getBody());
+	}
+	
+	@Path("/{instanceId}/areas")
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity createArea(@PathParam("instanceId") String instanceId, @FormParam("name") String name, 
+			@FormParam("region") Plain[] region, @FormParam("permissions") HashSet<Allowed> permissions) {
+		Instance instance = Instances.getInstance().getInstance(instanceId);
+		IDAddressedEntity ae = instance.createArea(name, region, permissions);
+		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/areas/" + ae.getId()), ae.getBody());
+	}
+	
+	@Path("/{instanceId}/objects")
+	@POST
+	@Produces(MediaType.APPLICATION_JSON)
+	public URIAddressedEntity create(@PathParam("instanceId") String instanceId, @FormParam("position") Position3D position,
+			@FormParam("velocity") Velocity3D velocity, @FormParam("angularVelocity") AngularVelocity3D angularVelocity,
+			@FormParam("angle") Angle angle, @FormParam("attribute") Attribute attribute, @FormParam("model") ObjectModel model) {
+		Instance instance = Instances.getInstance().getInstance(instanceId);
+		IDAddressedEntity ae = instance.createObject(position, velocity, angularVelocity, angle, attribute, model);
+		return new URIAddressedEntity((INSTANCES_URI + "/" + instanceId + "/objects/" + ae.getId()), ae.getBody());
+	} 
+	
 	
 //	@DELETE
 //	@Path("/destroyInstance")
diff --git a/src/main/java/cactusServer/utils/JSONConsumer.java b/src/main/java/cactusServer/utils/JSONConsumer.java
index 5f55da4..c61d8a2 100644
--- a/src/main/java/cactusServer/utils/JSONConsumer.java
+++ b/src/main/java/cactusServer/utils/JSONConsumer.java
@@ -22,8 +22,8 @@
  * @author student
  *
  */
-@Provider
-@Consumes(MediaType.APPLICATION_JSON)
+//@Provider
+//@Consumes(MediaType.APPLICATION_JSON)
 public class JSONConsumer implements MessageBodyReader<Object> {
 	@Override
 	public boolean isReadable(Class<?> type, java.lang.reflect.Type genericType,
diff --git a/src/main/java/cactusServer/utils/MyParamConverter.java b/src/main/java/cactusServer/utils/MyParamConverter.java
index 9ee58fe..9f2cd8e 100644
--- a/src/main/java/cactusServer/utils/MyParamConverter.java
+++ b/src/main/java/cactusServer/utils/MyParamConverter.java
@@ -5,20 +5,20 @@
 import cactusServer.entities.StageModel;
 import net.arnx.jsonic.JSON;
 
-public class MyParamConverter implements ParamConverter<StageModel> {
-//	private Class<?> type;
-//
-//	public MyParamConverter(Class<?> type) {
-//		this.type = type;
-//	}
-
-	@Override
-	public StageModel fromString(String value) {
-		return JSON.decode(value, StageModel.class);
+public class MyParamConverter implements ParamConverter<Object> {
+	private Class<?> type;
+	
+	public MyParamConverter(Class<?> type) {
+		this.type = type;
 	}
 
 	@Override
-	public String toString(StageModel obj) {
+	public Object fromString(String value) {
+		return JSON.decode(value, type);
+	}
+
+	@Override
+	public String toString(Object obj) {
 		return JSON.encode(obj);
 	}
 }
diff --git a/src/main/java/cactusServer/utils/MyParamConverterProvider.java b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
index c6edafc..fb79a8e 100644
--- a/src/main/java/cactusServer/utils/MyParamConverterProvider.java
+++ b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
@@ -5,15 +5,16 @@
 
 import javax.ws.rs.ext.ParamConverter;
 import javax.ws.rs.ext.ParamConverterProvider;
+import javax.ws.rs.ext.Provider;
 
 import cactusServer.entities.StageModel;
 
+@Provider
 public class MyParamConverterProvider implements ParamConverterProvider {
 	@Override
 	public <T> ParamConverter<T> getConverter(Class<T> rawType, Type genericType, Annotation[] annotations) {
-		// return (ParamConverter<T>) new MyParamConverter(rawType);
-		if (rawType.equals(StageModel.class)) {
-			return (ParamConverter<T>) new MyParamConverter();
+		if (rawType != null && !rawType.equals(String.class)) {
+			return (ParamConverter<T>) new MyParamConverter(rawType);
 		}
 		return null;
 	}