diff --git a/client-impl/src/main/java/ru/dragonestia/picker/api/impl/repository/RoomRepositoryImpl.java b/client-impl/src/main/java/ru/dragonestia/picker/api/impl/repository/RoomRepositoryImpl.java
index 5ebc07b..ce98cc5 100644
--- a/client-impl/src/main/java/ru/dragonestia/picker/api/impl/repository/RoomRepositoryImpl.java
+++ b/client-impl/src/main/java/ru/dragonestia/picker/api/impl/repository/RoomRepositoryImpl.java
@@ -1,55 +1,71 @@
 package ru.dragonestia.picker.api.impl.repository;
 
 import ru.dragonestia.picker.api.impl.util.RestTemplate;
+import ru.dragonestia.picker.api.impl.util.type.HttpMethod;
 import ru.dragonestia.picker.api.model.instance.InstanceId;
 import ru.dragonestia.picker.api.model.room.Room;
 import ru.dragonestia.picker.api.model.room.RoomId;
 import ru.dragonestia.picker.api.repository.RoomRepository;
+import ru.dragonestia.picker.api.repository.response.ResponseObject;
 
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 public class RoomRepositoryImpl implements RoomRepository {
 
-    private final RestTemplate restTemplate;
+    private final RestTemplate rest;
 
-    public RoomRepositoryImpl(RestTemplate restTemplate) {
-        this.restTemplate = restTemplate;
+    public RoomRepositoryImpl(RestTemplate rest) {
+        this.rest = rest;
     }
 
     @Override
     public List<RoomId> allRoomsIds(InstanceId instanceId) {
-        throw new UnsupportedOperationException("Not implemented");
+        return Arrays.stream(rest.query("/instances/target/%s/rooms".formatted(instanceId.getValue()), HttpMethod.GET, String[].class))
+                .map(RoomId::of)
+                .toList();
     }
 
     @Override
     public Room getRoom(InstanceId instanceId, RoomId roomId) {
-        throw new UnsupportedOperationException("Not implemented");
+        return rest.query("/instances/target/%s/rooms/target/%s".formatted(instanceId.getValue(), roomId.getValue()), HttpMethod.GET, ResponseObject.RRoom.class).covert();
     }
 
     @Override
     public Map<RoomId, Room> getRooms(InstanceId instanceId, Collection<RoomId> rooms) {
-        throw new UnsupportedOperationException("Not implemented");
+        var map = new HashMap<RoomId, Room>();
+        Arrays.stream(rest.query("/instances/target/%s/rooms/list".formatted(instanceId.getValue()), HttpMethod.GET, ResponseObject.RRoom[].class, params -> {
+            params.put("id", String.join(",", rooms.stream().map(RoomId::getValue).toList()));
+        })).map(ResponseObject.RRoom::covert).forEach(room -> map.put(room.id(), room));
+        return map;
     }
 
     @Override
     public void createRoom(InstanceId instanceId, RoomId roomId, int slots, String payload, boolean locked, boolean persist) {
-        throw new UnsupportedOperationException("Not implemented");
+        rest.queryPostWithBody("/instances/target/%s/rooms".formatted(instanceId.getValue()), params -> {
+            params.put("instanceId", instanceId.getValue());
+            params.put("id", roomId.getValue());
+            params.put("slots", Integer.toString(slots));
+            params.put("locked", Boolean.toString(locked));
+            params.put("persist", Boolean.toString(persist));
+        }, payload);
     }
 
     @Override
     public void deleteRoom(InstanceId instanceId, RoomId roomId) {
-        throw new UnsupportedOperationException("Not implemented");
+        rest.query("/instances/target/%s/rooms/target/%s".formatted(instanceId.getValue(), roomId.getValue()), HttpMethod.DELETE);
     }
 
     @Override
     public void deleteRooms(InstanceId instanceId, Collection<RoomId> rooms) {
-        throw new UnsupportedOperationException("Not implemented");
+        rest.query("/instances/target/%s/rooms/list".formatted(instanceId.getValue()), HttpMethod.DELETE, params -> {
+            params.put("id", String.join(",", rooms.stream().map(RoomId::getValue).toList()));
+        });
     }
 
     @Override
     public void lockRoom(InstanceId instanceId, RoomId roomId, boolean newState) {
-        throw new UnsupportedOperationException("Not implemented");
+        rest.query("/instances/target/%s/rooms/target/%s".formatted(instanceId.getValue(), roomId.getValue()), HttpMethod.PUT, param -> {
+            param.put("newState", Boolean.toString(newState));
+        });
     }
 }
diff --git a/client-impl/src/main/java/ru/dragonestia/picker/api/impl/util/RestTemplate.java b/client-impl/src/main/java/ru/dragonestia/picker/api/impl/util/RestTemplate.java
index efb9036..d25c5e3 100644
--- a/client-impl/src/main/java/ru/dragonestia/picker/api/impl/util/RestTemplate.java
+++ b/client-impl/src/main/java/ru/dragonestia/picker/api/impl/util/RestTemplate.java
@@ -97,6 +97,20 @@ public class RestTemplate {
         }
     }
 
+    public void queryPostWithBody(String uri, ParamsConsumer paramsConsumer, String body) {
+        var request = client.prepareRequestBuilder(uri + queryEncode(paramsConsumer))
+                .post(RequestBody.create(body, MediaType.get("text/plain")))
+                .build();
+
+        try (var response = httpClient.newCall(request).execute()) {
+            checkResponseForErrors(response);
+        } catch (JsonProcessingException ex) {
+            throw new RuntimeException("Json processing error", ex);
+        } catch (IOException ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+
     private String queryEncode(ParamsConsumer paramsConsumer) {
         var params = new HashMap<String, String>();
         paramsConsumer.accept(params);
diff --git a/server/src/main/java/ru/dragonestia/picker/controller/RoomController.java b/server/src/main/java/ru/dragonestia/picker/controller/RoomController.java
index bb2084e..55a7714 100644
--- a/server/src/main/java/ru/dragonestia/picker/controller/RoomController.java
+++ b/server/src/main/java/ru/dragonestia/picker/controller/RoomController.java
@@ -43,9 +43,9 @@ public class RoomController {
     ResponseEntity<Void> createRoom(@PathVariable String instanceId,
                                     @RequestParam String id,
                                     @RequestParam int slots,
-                                    @RequestParam String payload,
                                     @RequestParam(defaultValue = "false") boolean locked,
-                                    @RequestParam(defaultValue = "false") boolean persist) {
+                                    @RequestParam(defaultValue = "false") boolean persist,
+                                    @RequestBody String payload) {
         var instance = instanceService.find(InstanceId.of(instanceId))
                         .orElseThrow(() -> DoesNotExistsException.forInstance(InstanceId.of(instanceId)));
         roomService.create(roomFactory.create(RoomId.of(id), instance, slots, payload, persist, locked));