diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d52657..91da978 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,14 +63,22 @@ configure_file("config.json" "config.json" COPYONLY)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 add_executable(core ${SRC_DIR} ${CTL_SRC} ${FILTER_SRC} ${VIEWSRC} ${PLUGIN_SRC} ${MODEL_SRC} ${HELPER_SRC})
 
-add_custom_target(compiled_migrations ${CMAKE_CURRENT_SOURCE_DIR}/compile_migrations.sh)
-add_dependencies(core compiled_migrations)
-
 add_subdirectory(drogon)
 target_link_libraries(${PROJECT_NAME} PRIVATE drogon)
 
+add_custom_target(migrations
+    COMMAND ./compile_migrations.sh
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
 add_custom_target(run
     COMMAND core
     DEPENDS core
     WORKING_DIRECTORY ${CMAKE_PROJECT_DIR}
 )
+
+add_custom_target(test
+    COMMAND tavern-ci --tavern-beta-new-traceback ./tavern_tests
+    DEPENDS core
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+)
diff --git a/controllers/api_v1_controllers.cc b/controllers/api_v1_controllers.cc
index 27f2343..484d921 100644
--- a/controllers/api_v1_controllers.cc
+++ b/controllers/api_v1_controllers.cc
@@ -23,9 +23,17 @@ controllers::get_all(const HttpRequestPtr &req, std::function<void(const HttpRes
 
 void
 controllers::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
-                           const std::string& controller_id)
+                           const std::string& controller_id_str)
 {
-    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
     if(controllers[0])
     {
@@ -47,7 +55,7 @@ void
 controllers::get_one_by_tag(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
                             const std::string &controller_tag)
 {
-    controller_dbo **controllers = controller_dbo::get_by_simple("tag", controller_tag.c_str(), (intptr_t) &sqlite3_bind_text);
+    controller_dbo **controllers = controller_dbo::get_by_simple("tag", controller_tag.c_str(), (intptr_t) &sqlite3_bind_text, -1);
 
     if(controllers[0])
     {
@@ -66,9 +74,17 @@ controllers::get_one_by_tag(const HttpRequestPtr &req, std::function<void(const
 }
 
 void
-controllers::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id)
+controllers::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id_str)
 {
-    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
     if(controllers[0])
     {
@@ -92,11 +108,19 @@ controllers::delete_one_by_id(const HttpRequestPtr &req, std::function<void(cons
 
 void
 controllers::put_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
-                           const std::string &controller_id)
+                           const std::string &controller_id_str)
 {
     Json::Value body = *req->getJsonObject();
 
-    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    controller_dbo **controllers = controller_dbo::get_by_simple("id", controller_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
     if(controllers[0])
     {
@@ -127,4 +151,4 @@ controllers::put_one_by_id(const HttpRequestPtr &req, std::function<void(const H
         callback(resp);
     }
     controller_dbo::free_list(controllers);
-}
\ No newline at end of file
+}
diff --git a/controllers/api_v1_controllers.h b/controllers/api_v1_controllers.h
index 4557860..9916600 100644
--- a/controllers/api_v1_controllers.h
+++ b/controllers/api_v1_controllers.h
@@ -21,13 +21,13 @@ namespace api::v1
 
             static void post_discover(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback);
             static void get_all(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback);
-            static void get_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id);
+            static void get_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id_str);
             static void get_one_by_tag(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_tag);
-            static void delete_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id);
+            static void delete_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id_str);
             static void put_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id);
 
-            static void get_relays_all(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id);
-            static void get_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id, int relay_num);
-            static void put_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id, int relay_num);
+            static void get_relays_all(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id_str);
+            static void get_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id_str, int relay_num);
+            static void put_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& controller_id_str, int relay_num);
         };
     }
diff --git a/controllers/api_v1_controllers_discover.cc b/controllers/api_v1_controllers_discover.cc
index cd5130f..0f9d548 100644
--- a/controllers/api_v1_controllers_discover.cc
+++ b/controllers/api_v1_controllers_discover.cc
@@ -11,6 +11,14 @@
 
 using namespace api::v1;
 
+enum DISCOVERY_MAPPING
+{
+    DISCOVERY_MAPPING_ID = 0,
+    DISCOVERY_MAPPING_NAME = 1,
+    DISCOVERY_MAPPING_COMMAND_PORT = 2,
+    DISCOVERY_MAPPING_RELAY_COUNT = 3,
+};
+
 void controllers::post_discover(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback)
 {
 
@@ -95,12 +103,13 @@ void controllers::post_discover(const HttpRequestPtr &req, std::function<void(co
                 continue;
             }
 
-            uuid_t uuid;
-            int uuid_size = sizeof(uuid_t);
-            memcpy(&uuid, binn_object_blob(answer_payload, "uuid", &uuid_size), uuid_size);
+            uuid_t discovered_id;
+            int id_size = sizeof(uuid_t);
+            memcpy(&discovered_id, binn_map_blob(answer_payload, DISCOVERY_MAPPING_ID, &id_size), id_size);
+            //strncpy(&id, binn_map_blob(answer_payload, DISCOVERY_MAPPING_ID, &uuid_size), uuid_size);
 
             char uuid_str[38];
-            uuid_unparse(uuid, uuid_str);
+            uuid_unparse(discovered_id, uuid_str);
             LOG_DEBUG << uuid_str;
             continue;
 
@@ -108,15 +117,13 @@ void controllers::post_discover(const HttpRequestPtr &req, std::function<void(co
 
             Json::Value client_info;
 
-            const char *discovered_id = client_info["id"].asCString();
-
             bool found_discovered_in_list = false;
 
             for(int i = 0; known_controllers[i] != nullptr; i++)
             {
                 if(!found_discovered_in_list)
                 {
-                    if(strcmp(known_controllers[i]->id, discovered_id) == 0)
+                    if(uuid_compare(known_controllers[i]->id, discovered_id) == 0)
                     {
                         known_controllers[i]->active = true;
                         known_controllers[i]->update();
@@ -135,7 +142,7 @@ void controllers::post_discover(const HttpRequestPtr &req, std::function<void(co
             {
                 controller_dbo discovered_controller{};
                 strcpy(discovered_controller.ip, inet_ntoa(addr.sin_addr));
-                strcpy(discovered_controller.id, discovered_id);
+                memcpy(discovered_controller.id, discovered_id, sizeof(uuid_t));
                 strcpy(discovered_controller.name, client_info["name"].asCString());
                 discovered_controller.relay_count = client_info["relay_count"].asInt();
                 discovered_controller.port = client_info["port"].asInt();
diff --git a/controllers/api_v1_controllers_relays.cc b/controllers/api_v1_controllers_relays.cc
index f341dc3..3c79a04 100644
--- a/controllers/api_v1_controllers_relays.cc
+++ b/controllers/api_v1_controllers_relays.cc
@@ -10,9 +10,17 @@ using namespace api::v1;
 
 void
 controllers::get_relays_all(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
-                        const std::string& controller_id)
+                        const std::string& controller_id_str)
 {
-    relay_dbo **all_controller_relays = relay_dbo::get_by_simple("controller_id", (void *) controller_id.c_str(), (intptr_t) sqlite3_bind_text);
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    relay_dbo **all_controller_relays = relay_dbo::get_by_simple("controller_id", (void *) controller_id, (intptr_t) sqlite3_bind_blob, sizeof(uuid_t));
     Json::Value all_relays_json(Json::arrayValue);
 
     for(int i = 0; all_controller_relays[i] != nullptr; i++)
@@ -29,10 +37,18 @@ controllers::get_relays_all(const HttpRequestPtr &req, std::function<void(const
 
 void
 controllers::get_relays_one_by_id_and_num(const HttpRequestPtr &req,
-                                      std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id,
+                                      std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id_str,
                                       int relay_num)
 {
-    relay_dbo *relay = relay_dbo::get_relay_for_controller(controller_id.c_str(), relay_num);
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    relay_dbo *relay = relay_dbo::get_relay_for_controller(controller_id, relay_num);
 
     if(relay)
     {
@@ -53,10 +69,18 @@ controllers::get_relays_one_by_id_and_num(const HttpRequestPtr &req,
 
 void
 controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
-                                      std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id,
+                                      std::function<void(const HttpResponsePtr &)> &&callback, const std::string& controller_id_str,
                                       int relay_num)
 {
-    if(!relay_dbo::valid_num_for_controller(controller_id.c_str(), relay_num))
+    uuid_t controller_id;
+    if(uuid_parse(controller_id_str.c_str(), controller_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    if(!relay_dbo::valid_num_for_controller(controller_id, relay_num))
     {
         auto resp = HttpResponse::newHttpResponse();
         resp->setStatusCode(k400BadRequest);
@@ -64,15 +88,24 @@ controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
         return;
     }
 
-    relay_dbo *relay = relay_dbo::get_relay_for_controller(controller_id.c_str(), relay_num);
     Json::Value body = *req->getJsonObject();
+    uuid_t active_schedule_id;
+    if(!schedule_dbo::parse_id(body["active_schedule"].asCString(), active_schedule_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+
+    relay_dbo *relay = relay_dbo::get_relay_for_controller(controller_id, relay_num);
 
     bool db_action_result;
 
     if(relay)
     {
         strncpy(relay->name, body["name"].asCString(), 127);
-        strncpy(relay->active_schedule_id, body["active_schedule"].asCString(), 32);
+        uuid_copy(relay->active_schedule_id, active_schedule_id);
 
         db_action_result = relay->update();
     }
@@ -81,8 +114,9 @@ controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
         relay = new relay_dbo();
         relay->number = relay_num;
         strncpy(relay->name, body["name"].asCString(), 127);
-        strncpy(relay->active_schedule_id, body["active_schedule"].asCString(), 32);
-        strncpy(relay->controller_id, controller_id.c_str(), 32);
+
+        uuid_copy(relay->active_schedule_id, active_schedule_id);
+        uuid_copy(relay->controller_id, controller_id);
 
         relay->reload_active_schedule();
 
@@ -97,8 +131,8 @@ controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
     }
     else
     {
-        auto schedules = schedule_dbo::get_by_simple("id", body["active_schedule"].asCString(), (intptr_t)&sqlite3_bind_text);
-        auto controllers = controller_dbo::get_by_simple("id", controller_id.c_str(), (intptr_t)&sqlite3_bind_text);
+        auto schedules = schedule_dbo::get_by_simple("id", active_schedule_id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
+        auto controllers = controller_dbo::get_by_simple("id", controller_id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
 
         Json::Value payload;
         payload["target"] = relay_num;
@@ -116,4 +150,4 @@ controllers::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
     }
 
     delete relay;
-}
\ No newline at end of file
+}
diff --git a/controllers/api_v1_relays.cc b/controllers/api_v1_relays.cc
index 188dc97..e3b261d 100644
--- a/controllers/api_v1_relays.cc
+++ b/controllers/api_v1_relays.cc
@@ -26,7 +26,7 @@ void
 relays::get_one_by_tag(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
                        const std::string &relay_tag)
 {
-    relay_dbo **relays = relay_dbo::get_by_simple("tag", relay_tag.c_str(), (intptr_t)&sqlite3_bind_text);
+    relay_dbo **relays = relay_dbo::get_by_simple("tag", relay_tag.c_str(), (intptr_t)&sqlite3_bind_text, -1);
 
     if(relays[0])
     {
@@ -42,4 +42,4 @@ relays::get_one_by_tag(const HttpRequestPtr &req, std::function<void(const HttpR
         callback(resp);
     }
     relay_dbo::free_list(relays);
-}
\ No newline at end of file
+}
diff --git a/controllers/api_v1_schedules.cc b/controllers/api_v1_schedules.cc
index debbe2d..2aed5cf 100644
--- a/controllers/api_v1_schedules.cc
+++ b/controllers/api_v1_schedules.cc
@@ -25,9 +25,18 @@ schedules::get_all(const HttpRequestPtr &req, std::function<void(const HttpRespo
 }
 
 void
-schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id)
+schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id_str)
 {
-    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    uuid_t schedule_id;
+    if(schedule_dbo::parse_id(schedule_id_str.c_str(), schedule_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+
+    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
     if(schedules[0])
     {
@@ -46,9 +55,9 @@ schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
 }
 
 void
-schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id)
+schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id_str)
 {
-    if(strcmp(schedule_id.c_str(), "off") == 0 || strcmp(schedule_id.c_str(), "on") == 0)
+    if(strcmp(schedule_id_str.c_str(), "off") == 0 || strcmp(schedule_id_str.c_str(), "on") == 0)
     {
         auto resp = HttpResponse::newHttpResponse();
         resp->setStatusCode(k403Forbidden);
@@ -57,7 +66,15 @@ schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const
         return;
     }
 
-    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    uuid_t schedule_id;
+    if(schedule_dbo::parse_id(schedule_id_str.c_str(), schedule_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
     if(schedules[0])
     {
@@ -88,7 +105,7 @@ schedules::post_new(const HttpRequestPtr &req, std::function<void(const HttpResp
 
     strncpy(new_schedule.name, body["name"].asCString(), 127);
     new_schedule.name[127] = '\0';
-    strncpy(new_schedule.id, drogon::utils::getUuid().c_str(), 32);
+    uuid_generate(new_schedule.id);
     new_schedule.id[32] = '\0';
     new_schedule.periods = helpers::parse_periods(body["periods"]);
 
@@ -107,9 +124,9 @@ schedules::post_new(const HttpRequestPtr &req, std::function<void(const HttpResp
 
 void
 schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
-                         const std::string &schedule_id)
+                         const std::string &schedule_id_str)
 {
-    if(strcmp(schedule_id.c_str(), "off") == 0 || strcmp(schedule_id.c_str(), "on") == 0)
+    if(strcmp(schedule_id_str.c_str(), "off") == 0 || strcmp(schedule_id_str.c_str(), "on") == 0)
     {
         auto resp = HttpResponse::newHttpResponse();
         resp->setStatusCode(k403Forbidden);
@@ -118,9 +135,17 @@ schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
         return;
     }
 
-    Json::Value body = *req->jsonObject();
+    uuid_t schedule_id;
+    if(schedule_dbo::parse_id(schedule_id_str.c_str(), schedule_id))
+    {
+        auto resp = HttpResponse::newHttpResponse();
+        resp->setStatusCode(k400BadRequest);
+        callback(resp);
+        return;
+    }
+    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id, (intptr_t) &sqlite3_bind_blob, sizeof(uuid_t));
 
-    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
+    Json::Value body = *req->jsonObject();
 
     if(schedules[0])
     {
@@ -149,4 +174,4 @@ schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
         callback(resp);
     }
     schedule_dbo::free_list(schedules);
-}
\ No newline at end of file
+}
diff --git a/filters/relays_valid_json.cc b/filters/relays_valid_json.cc
index 1d57b1f..4d19830 100644
--- a/filters/relays_valid_json.cc
+++ b/filters/relays_valid_json.cc
@@ -21,9 +21,17 @@ void valid_json::doFilter(const HttpRequestPtr &req,
     is_valid &= body["name"].type() == Json::ValueType::stringValue;
     is_valid &= body["active_schedule"].type() == Json::ValueType::stringValue;
 
+    uuid_t active_schedule_id;
+    if(schedule_dbo::parse_id(body["active_schedule"].asCString(), active_schedule_id))
+    {
+        auto res = drogon::HttpResponse::newHttpResponse();
+        res->setStatusCode(k400BadRequest);
+        fcb(res);
+    }
+
     if(is_valid)
     {
-        schedule_dbo **schedules = schedule_dbo::get_by_simple("id", body["active_schedule"].asCString(), (intptr_t)&sqlite3_bind_text);
+        schedule_dbo **schedules = schedule_dbo::get_by_simple("id", active_schedule_id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
         bool schedule_found = schedules[0] != nullptr;
         schedule_dbo::free_list(schedules);
         if(schedule_found)
diff --git a/helpers.h b/helpers.h
index eaabd0d..c250d2b 100644
--- a/helpers.h
+++ b/helpers.h
@@ -22,11 +22,12 @@ namespace helpers
 
     typedef struct sql_filter_builder
     {
-        sql_filter_builder(const char *col_name, const void *value, intptr_t bind_func, const char *logic);
+        sql_filter_builder(const char *col_name, const void *value, intptr_t bind_func, int bind_func_param, const char *logic);
 
         const char *col_name;
         const void *value;
         intptr_t bind_func;
+        int bind_func_param;
         const char *logic;
     } sql_filter_builder;
 
diff --git a/helpers/create_sql_filtered_query.cc b/helpers/create_sql_filtered_query.cc
index 8ab8551..4e635ca 100644
--- a/helpers/create_sql_filtered_query.cc
+++ b/helpers/create_sql_filtered_query.cc
@@ -41,18 +41,22 @@ helpers::create_sql_filtered_query(const char *sql, sql_filter_builder **filters
         }
         if(filter->bind_func == (intptr_t)&sqlite3_bind_text)
         {
-            sqlite3_bind_text(stmt, i + 1, (char*)filter->value, -1, SQLITE_STATIC);
+            sqlite3_bind_text(stmt, i + 1, (char*)filter->value, filter->bind_func_param, SQLITE_STATIC);
+        }
+        if(filter->bind_func == (intptr_t)&sqlite3_bind_blob)
+        {
+            sqlite3_bind_blob(stmt, i + 1, filter->value, filter->bind_func_param, SQLITE_STATIC);
         }
     }
 
     return stmt;
 }
 
-helpers::sql_filter_builder::sql_filter_builder(const char *col_name, const void *value, intptr_t bind_func,
-                                                const char *logic)
+helpers::sql_filter_builder::sql_filter_builder(const char *col_name, const void *value, intptr_t bind_func, int bind_func_param, const char *logic)
 {
     this->col_name = col_name;
     this->value = value;
     this->bind_func = bind_func;
+    this->bind_func_param = bind_func_param;
     this->logic = logic;
-}
\ No newline at end of file
+}
diff --git a/helpers/migrate_sql.cc b/helpers/migrate_sql.cc
index 3eea6f0..64b136b 100644
--- a/helpers/migrate_sql.cc
+++ b/helpers/migrate_sql.cc
@@ -1,11 +1,12 @@
 #include <helpers.h>
 #include <globals.h>
+#include <uuid/uuid.h>
 #include <drogon/trantor/trantor/utils/Logger.h>
+#include <drogon/utils/Utilities.h>
 
 #include <config.h>
 
 #include <sql/migration_0.h>
-#include <sql/migration_1.h>
 
 int
 helpers::migrate_sql()
@@ -41,15 +42,6 @@ helpers::migrate_sql()
                 break;
             }
             new_version_num = 1;
-        case 1:
-            LOG_INFO << "Migrating LEVEL 1";
-            rc = sqlite3_exec(globals::db, (const char *)sql_migration_1_sql, nullptr, nullptr, &err_msg);
-            if(rc != 0)
-            {
-                LOG_FATAL << "Couldn't migrate LEVEL 1 (" << err_msg << ")";
-                break;
-            }
-            new_version_num = 2;
         default:
             break;
     }
diff --git a/models/controller_dbo.cc b/models/controller_dbo.cc
index c96b9ee..565f7c2 100644
--- a/models/controller_dbo.cc
+++ b/models/controller_dbo.cc
@@ -3,6 +3,7 @@
 #include <trantor/utils/Logger.h>
 #include <sys/socket.h>
 #include <unistd.h>
+#include <uuid/uuid.h>
 #include <helpers.h>
 #include "controller_dbo.h"
 #include "globals.h"
@@ -19,7 +20,7 @@ static bool controller_db_update_insert(controller_dbo *controller, sqlite3_stmt
 {
     int rc;
 
-    sqlite3_bind_text(stmt, 1, controller->id, -1, SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 1, controller->id, sizeof(uuid_t), SQLITE_STATIC);
     sqlite3_bind_text(stmt, 2, controller->name, -1, SQLITE_STATIC);
     sqlite3_bind_text(stmt, 3, controller->ip, -1, SQLITE_STATIC);
     sqlite3_bind_int(stmt, 4, controller->active);
@@ -56,7 +57,7 @@ controller_db_select_mapper(sqlite3_stmt *stmt)
                 switch(name[1])
                 {
                     case 'd': // id
-                        strncpy(new_controller->id, (const char*)sqlite3_column_text(stmt, i), 32);
+                        uuid_copy(new_controller->id, (const unsigned char*)sqlite3_column_blob(stmt, i));
                         break;
                     case 'p': // ip
                         strncpy(new_controller->ip, (const char*)sqlite3_column_text(stmt, i), 16);
@@ -104,7 +105,7 @@ controller_db_select(sqlite3_stmt *stmt)
         if (s == SQLITE_ROW)
         {
             controller_dbo *new_controller = controller_db_select_mapper(stmt);
-            new_controller->relays = relay_dbo::get_by_simple("controller_id", new_controller->id, (intptr_t)&sqlite3_bind_text);
+            new_controller->relays = relay_dbo::get_by_simple("controller_id", new_controller->id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
             row++;
 
             all_controllers = (controller_dbo**)realloc(all_controllers, sizeof(controller_dbo*) * (row + 1));
@@ -158,7 +159,7 @@ controller_dbo::remove()
     int rc;
 
     sqlite3_prepare_v2(globals::db, "DELETE FROM controllers WHERE id=?1;", -1, &stmt, nullptr);
-    sqlite3_bind_text(stmt, 1, this->id, -1, SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 1, this->id, sizeof(uuid_t), SQLITE_STATIC);
     rc = sqlite3_step(stmt);
     sqlite3_finalize(stmt);
 
@@ -169,9 +170,11 @@ controller_dbo::remove()
 Json::Value
 controller_dbo::to_json()
 {
+    char id_str[37];
+    uuid_unparse(this->id, id_str);
     Json::Value controller_json;
     controller_json["name"] = this->name;
-    controller_json["id"] = this->id;
+    controller_json["id"] = id_str;
     controller_json["ip"] = this->ip;
     controller_json["relay_count"] = this->relay_count;
     controller_json["active"] = this->active;
@@ -199,7 +202,7 @@ controller_dbo::get_all()
 }
 
 controller_dbo**
-controller_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
+controller_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param)
 {
     helpers::sql_filter_builder *filters[1];
     helpers::sql_filter_builder filter
@@ -207,6 +210,7 @@ controller_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_
                     key,
                     value,
                     bind_func,
+                    bind_func_param,
                     ";"
             };
     filters[0] = &filter;
diff --git a/models/controller_dbo.h b/models/controller_dbo.h
index 9af7d6f..db4138f 100644
--- a/models/controller_dbo.h
+++ b/models/controller_dbo.h
@@ -2,6 +2,7 @@
 #define EMGAUWA_CORE_controller_DBO_H
 
 #include <string>
+#include <uuid/uuid.h>
 #include <sqlite3.h>
 #include <json/value.h>
 #include <helpers.h>
@@ -11,7 +12,7 @@ class controller_dbo
 {
 public:
 
-    char id[33];
+    uuid_t id;
     char name[128];
     char ip[17];
     bool active;
@@ -35,7 +36,7 @@ public:
     to_json();
 
     static controller_dbo**
-    get_by_simple(const char *key, const void *value, intptr_t bind_func);
+    get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param);
 
     static controller_dbo**
     get_by(helpers::sql_filter_builder **filters);
diff --git a/models/relay_dbo.cc b/models/relay_dbo.cc
index f83ff93..16d460c 100644
--- a/models/relay_dbo.cc
+++ b/models/relay_dbo.cc
@@ -14,8 +14,8 @@ static bool relay_db_update_insert(relay_dbo *relay, sqlite3_stmt *stmt)
     sqlite3_bind_int(stmt, 1, relay->id);
     sqlite3_bind_int(stmt, 2, relay->number);
     sqlite3_bind_text(stmt, 3, relay->name, -1, SQLITE_STATIC);
-    sqlite3_bind_text(stmt, 4, relay->active_schedule_id, -1, SQLITE_STATIC);
-    sqlite3_bind_text(stmt, 5, relay->controller_id, -1, SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 4, relay->active_schedule_id, sizeof(uuid_t), SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 5, relay->controller_id, sizeof(uuid_t), SQLITE_STATIC);
     sqlite3_bind_text(stmt, 6, relay->tag, -1, SQLITE_STATIC);
 
     rc = sqlite3_step(stmt);
@@ -41,10 +41,10 @@ relay_db_select_mapper(sqlite3_stmt *stmt)
         switch(name[0])
         {
             case 'a': // active_schedule_id
-                strncpy(new_relay->active_schedule_id, (const char*)sqlite3_column_text(stmt, i), 32);
+                uuid_copy(new_relay->active_schedule_id, (const unsigned char*)sqlite3_column_blob(stmt, i));
                 break;
             case 'c': // controller_id
-                strncpy(new_relay->controller_id, (const char*)sqlite3_column_text(stmt, i), 32);
+                uuid_copy(new_relay->controller_id, (const unsigned char*)sqlite3_column_blob(stmt, i));
                 break;
             case 'i':
                 new_relay->id = sqlite3_column_int(stmt, i);
@@ -123,13 +123,16 @@ relay_db_select(sqlite3_stmt *stmt)
 void
 relay_dbo::reload_active_schedule()
 {
-    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", this->active_schedule_id, (intptr_t)&sqlite3_bind_text);
+    schedule_dbo **schedules = schedule_dbo::get_by_simple("id", this->active_schedule_id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
 
     if(!schedules[0])
     {
         free(schedules);
-        schedules = schedule_dbo::get_by_simple("id", "off", (intptr_t)&sqlite3_bind_text);
-        strcpy(this->active_schedule_id, "off");
+        uuid_t off_uuid;
+        memset(off_uuid, 0, sizeof(uuid_t));
+        memcpy(off_uuid, "off", 3);
+        schedules = schedule_dbo::get_by_simple("id", off_uuid, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
+        uuid_copy(this->active_schedule_id, off_uuid);
     }
 
     this->active_schedule = schedules[0];
@@ -175,11 +178,15 @@ relay_dbo::remove()
 Json::Value
 relay_dbo::to_json()
 {
+    char controller_id_str[37];
+    uuid_unparse(this->controller_id, controller_id_str);
+    char active_schedule_id_str[37];
+    uuid_unparse(this->active_schedule_id, active_schedule_id_str);
     Json::Value relay_json;
     relay_json["name"] = this->name;
     relay_json["number"] = this->number;
-    relay_json["active_schedule_id"] = this->active_schedule_id;
-    relay_json["controller_id"] = this->controller_id;
+    relay_json["active_schedule_id"] = active_schedule_id_str;
+    relay_json["controller_id"] = controller_id_str;
     relay_json["active_schedule"] = this->active_schedule->to_json();
     relay_json["tag"] = this->tag;
 
@@ -197,7 +204,7 @@ relay_dbo::get_all()
 }
 
 relay_dbo**
-relay_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
+relay_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param)
 {
     helpers::sql_filter_builder *filters[1];
     helpers::sql_filter_builder filter
@@ -205,6 +212,7 @@ relay_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
         key,
         value,
         bind_func,
+        bind_func_param,
         ";"
     };
     filters[0] = &filter;
@@ -221,19 +229,21 @@ relay_dbo::get_by(helpers::sql_filter_builder **filters)
 }
 
 relay_dbo*
-relay_dbo::get_relay_for_controller(const char *controller_id, int relay_num)
+relay_dbo::get_relay_for_controller(uuid_t controller_id, int relay_num)
 {
     helpers::sql_filter_builder *filters[2];
     helpers::sql_filter_builder filter(
             "number",
             (void*)(intptr_t)relay_num,
             (intptr_t)&sqlite3_bind_int,
+            0,
             "AND"
     );
     helpers::sql_filter_builder filter2(
             "controller_id",
             (void*)controller_id,
-            (intptr_t)sqlite3_bind_text,
+            (intptr_t)sqlite3_bind_blob,
+            sizeof(uuid_t),
             ";"
     );
     filters[0] = &filter;
@@ -247,9 +257,9 @@ relay_dbo::get_relay_for_controller(const char *controller_id, int relay_num)
 }
 
 bool
-relay_dbo::valid_num_for_controller(const char *search_controller_id, int relay_num)
+relay_dbo::valid_num_for_controller(uuid_t search_controller_id, int relay_num)
 {
-    controller_dbo **controllers = controller_dbo::get_by_simple("id", search_controller_id, (intptr_t)&sqlite3_bind_text);
+    controller_dbo **controllers = controller_dbo::get_by_simple("id", search_controller_id, (intptr_t)&sqlite3_bind_blob, sizeof(uuid_t));
 
     bool valid_id_and_num = controllers[0] && controllers[0]->relay_count > relay_num;
     controller_dbo::free_list(controllers);
diff --git a/models/relay_dbo.h b/models/relay_dbo.h
index 90fa305..eced1ce 100644
--- a/models/relay_dbo.h
+++ b/models/relay_dbo.h
@@ -4,6 +4,7 @@
 #include <string>
 #include <sqlite3.h>
 #include <json/value.h>
+#include <uuid/uuid.h>
 #include <helpers.h>
 #include "schedule_dbo.h"
 
@@ -14,8 +15,8 @@ public:
     int id;
     char name[128];
     int number;
-    char controller_id[33];
-    char active_schedule_id[33];
+    uuid_t controller_id;
+    uuid_t active_schedule_id;
     char tag[64];
     schedule_dbo *active_schedule;
 
@@ -38,16 +39,16 @@ public:
     free_list(relay_dbo **relays_list);
 
     static relay_dbo**
-    get_by_simple(const char *key, const void *value, intptr_t bind_func);
+    get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param);
 
     static relay_dbo**
     get_by(helpers::sql_filter_builder **filters);
 
     static relay_dbo*
-    get_relay_for_controller(const char *controller_id, int relay_num);
+    get_relay_for_controller(uuid_t controller_id, int relay_num);
 
     static bool
-    valid_num_for_controller(const char *search_controller_id, int relay_num);
+    valid_num_for_controller(uuid_t search_controller_id, int relay_num);
 
     static relay_dbo**
     get_all();
diff --git a/models/schedule_dbo.cc b/models/schedule_dbo.cc
index 5d45553..5cf089b 100644
--- a/models/schedule_dbo.cc
+++ b/models/schedule_dbo.cc
@@ -11,7 +11,7 @@ static bool schedule_db_update_insert(schedule_dbo *schedule, sqlite3_stmt *stmt
     uint16_t *periods_blob = schedule->periods->to_db_blob();
     int blob_size = (int)sizeof(uint16_t) * ((periods_blob[0] * 2) + 1);
 
-    sqlite3_bind_text(stmt, 1, schedule->id, -1, SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 1, schedule->id, sizeof(uuid_t), SQLITE_STATIC);
     sqlite3_bind_text(stmt, 2, schedule->name, -1, SQLITE_STATIC);
     sqlite3_bind_blob(stmt, 3, periods_blob, blob_size, SQLITE_STATIC);
 
@@ -39,8 +39,7 @@ schedule_db_select_mapper(sqlite3_stmt *stmt)
         switch(name[0])
         {
             case 'i': // id
-                strncpy(new_schedule->id, (const char*)sqlite3_column_text(stmt, i), 32);
-                new_schedule->id[32] = '\0';
+                uuid_copy(new_schedule->id, (const unsigned char*)sqlite3_column_blob(stmt, i));
                 break;
             case 'n': // name
                 strncpy(new_schedule->name, (const char*)sqlite3_column_text(stmt, i), 127);
@@ -124,7 +123,7 @@ schedule_dbo::remove()
     int rc;
 
     sqlite3_prepare_v2(globals::db, "DELETE FROM schedules WHERE id=?1;", -1, &stmt, nullptr);
-    sqlite3_bind_text(stmt, 1, this->id, -1, SQLITE_STATIC);
+    sqlite3_bind_blob(stmt, 1, this->id, sizeof(uuid_t), SQLITE_STATIC);
     rc = sqlite3_step(stmt);
 
     sqlite3_finalize(stmt);
@@ -141,9 +140,11 @@ schedule_dbo::~schedule_dbo()
 Json::Value
 schedule_dbo::to_json()
 {
+    char id_str[37];
+    schedule_dbo::unparse_id(this->id, id_str);
     Json::Value schedule_json;
     schedule_json["name"] = this->name;
-    schedule_json["id"] = this->id;
+    schedule_json["id"] = id_str;
     schedule_json["periods"] = this->periods->to_json();
 
     return schedule_json;
@@ -160,7 +161,7 @@ schedule_dbo::get_all()
 }
 
 schedule_dbo**
-schedule_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
+schedule_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param)
 {
     helpers::sql_filter_builder *filters[1];
     helpers::sql_filter_builder filter
@@ -168,6 +169,7 @@ schedule_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_fu
         key,
         value,
         bind_func,
+        bind_func_param,
         ";"
     };
     filters[0] = &filter;
@@ -195,3 +197,49 @@ schedule_dbo::free_list(schedule_dbo **schedules_list)
     free(schedules_list);
 }
 
+int
+schedule_dbo::parse_id(const char *id_str, uuid_t result)
+{
+    if(strcmp("off", id_str) == 0)
+    {
+        memset(result, 0, sizeof(uuid_t));
+        memcpy(result, "off", 3);
+        return 0;
+    }
+    if(strcmp("on", id_str) == 0)
+    {
+        memset(result, 0, sizeof(uuid_t));
+        memcpy(result, "on", 2);
+        return 0;
+    }
+
+    if(uuid_parse(id_str, result))
+    {
+        return 1;
+    }
+    return 0;
+}
+
+void
+schedule_dbo::unparse_id(const uuid_t id, char *result)
+{
+    uuid_t tmp_uuid;
+
+    memset(tmp_uuid, 0, sizeof(uuid_t));
+    memcpy(tmp_uuid, "off", 3);
+    if(uuid_compare(id, tmp_uuid) == 0)
+    {
+        strcpy(result, "off");
+        return;
+    }
+
+    memset(tmp_uuid, 0, sizeof(uuid_t));
+    memcpy(tmp_uuid, "on", 2);
+    if(uuid_compare(id, tmp_uuid) == 0)
+    {
+        strcpy(result, "on");
+        return;
+    }
+
+    uuid_unparse(id, result);
+}
diff --git a/models/schedule_dbo.h b/models/schedule_dbo.h
index 9b9898c..9f4a743 100644
--- a/models/schedule_dbo.h
+++ b/models/schedule_dbo.h
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <sqlite3.h>
+#include <uuid/uuid.h>
 #include <json/value.h>
 #include <helpers.h>
 #include "period.h"
@@ -12,7 +13,7 @@ class schedule_dbo
 {
 public:
 
-    char id[33];
+    uuid_t id;
     char name[128];
     period_list *periods;
 
@@ -34,13 +35,19 @@ public:
     free_list(schedule_dbo **schedules_list);
 
     static schedule_dbo**
-    get_by_simple(const char *key, const void *value, intptr_t bind_func);
+    get_by_simple(const char *key, const void *value, intptr_t bind_func, int bind_func_param);
 
     static schedule_dbo**
     get_by(helpers::sql_filter_builder **filters);
 
     static schedule_dbo**
     get_all();
+
+    static int
+    parse_id(const char *id_str, uuid_t result);
+
+    static void
+    unparse_id(const uuid_t id, char *result);
 };
 
 
diff --git a/sql/migration_0.sql b/sql/migration_0.sql
index ad432a4..fc8c912 100644
--- a/sql/migration_0.sql
+++ b/sql/migration_0.sql
@@ -25,7 +25,8 @@ create table relays
     controller_id      VARCHAR(33) not null
         references controllers (id),
     active_schedule_id VARCHAR(33)
-        references schedules
+        references schedules,
+    tag                vARCHAR(64)
 );
 
 create table schedules
@@ -34,7 +35,9 @@ create table schedules
         primary key
         unique,
     name    VARCHAR(128),
-    periods BLOB
+    periods BLOB,
+    tag     vARCHAR(64)
 );
 
-INSERT INTO schedules (id, name, periods) VALUES ('off', 'off', x'00');
+INSERT INTO schedules (id, name, periods) VALUES (x'6f666600000000000000000000000000', 'off', x'00');
+INSERT INTO schedules (id, name, periods) VALUES (x'6f6e0000000000000000000000000000',  'on',  x'010000009F05');
diff --git a/sql/migration_1.sql b/sql/migration_1.sql
deleted file mode 100644
index 12fef78..0000000
--- a/sql/migration_1.sql
+++ /dev/null
@@ -1,8 +0,0 @@
-alter table relays
-    add tag varchar(64);
-
-alter table controllers
-    add tag varchar(64);
-
-INSERT INTO schedules (id, name, periods) VALUES ('on', 'on', x'010000009F05');
-
diff --git a/tavern_tests/test_get_all.tavern.yaml b/tavern_tests/test_get_all.tavern.yaml
new file mode 100644
index 0000000..e05385a
--- /dev/null
+++ b/tavern_tests/test_get_all.tavern.yaml
@@ -0,0 +1,25 @@
+test_name: Test basic get all requests
+
+stages:
+    - name: Get all schedules
+      request:
+          url: "http://localhost:5000/api/v1/schedules/"
+          method: GET
+      response:
+          status_code: 200
+
+stages:
+    - name: Get all relays
+      request:
+          url: "http://localhost:5000/api/v1/relays/"
+          method: GET
+      response:
+          status_code: 200
+
+stages:
+    - name: Get all controllers
+      request:
+          url: "http://localhost:5000/api/v1/controllers/"
+          method: GET
+      response:
+          status_code: 200
diff --git a/tavern_tests/test_minimal.tavern.yaml b/tavern_tests/test_minimal.tavern.yaml
deleted file mode 100644
index 31cff10..0000000
--- a/tavern_tests/test_minimal.tavern.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-test_name: Test basic requests
-
-stages:
-  - name: Make sure we get any response
-    request:
-      url: http://localhost:5000/api/v1/schedules/
-      method: GET
-    response:
-      status_code: 200
diff --git a/tavern_tests/test_schedules_basic.tavern.yaml b/tavern_tests/test_schedules_basic.tavern.yaml
new file mode 100644
index 0000000..4650f37
--- /dev/null
+++ b/tavern_tests/test_schedules_basic.tavern.yaml
@@ -0,0 +1,39 @@
+test_name: Test basic requests
+
+stages:
+    - name: Make sure we get any response
+      request:
+          url: "http://localhost:5000/api/v1/schedules/"
+          method: GET
+      response:
+          status_code: 200
+    - name: post schedule, expect it to be echoed back
+      request:
+          method: POST
+          url: "http://localhost:5000/api/v1/schedules/"
+          json:
+              name: "hello"
+              periods:
+                - start: '00:10'
+                  end: '00:20'
+                - start: '00:30'
+                  end: '00:40'
+                - start: '00:50'
+                  end: '01:00'
+      response:
+          status_code: 200
+          body:
+              name: "{tavern.request_vars.json.name}"
+          save:
+              body:
+                  returned_name: name
+                  returned_id: id
+    - name: get schedule, check name and some periods
+      request:
+          method: GET
+          url: "http://localhost:5000/api/v1/schedules/{returned_id}"
+      response:
+          status_code: 200
+          body:
+              name: "{returned_name}"
+