diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 11c41a2..8c52696 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,35 +2,15 @@
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-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
+      <change type="DELETED" beforePath="$PROJECT_DIR$/core/helper/__init__.py" afterPath="" />
+      <change type="DELETED" beforePath="$PROJECT_DIR$/core/helper/jsondump.py" afterPath="" />
+      <change type="DELETED" beforePath="$PROJECT_DIR$/core/helper/utils.py" afterPath="" />
+      <change type="DELETED" beforePath="$PROJECT_DIR$/logs/first_logfile2.log.2018-11-01_21-20" afterPath="" />
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-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/core/extension/dummy/__init__.py" afterPath="$PROJECT_DIR$/core/extension/dummy/__init__.py" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/core/api/extension.py" afterPath="$PROJECT_DIR$/core/api/extension.py" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/core/http_endpoints/http_api.py" afterPath="$PROJECT_DIR$/core/http_endpoints/http_api.py" />
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-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/core/mqtt/mqtt.py" afterPath="$PROJECT_DIR$/core/mqtt/mqtt.py" />
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@@ -40,7 +20,7 @@
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
   <component name="CoverageDataManager">
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+    <SUITE FILE_PATH="coverage/craftbeerpi4$run.coverage" NAME="run Coverage Results" MODIFIED="1541104020023" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
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@@ -90,31 +70,33 @@
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       <file leaf-file-name="utils.py" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/core/helper/utils.py">
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+        <entry file="file://$PROJECT_DIR$/core/utils/__init__.py">
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@@ -122,6 +104,16 @@
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+      <file leaf-file-name="http_api.py" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/core/http_endpoints/http_api.py">
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       <file leaf-file-name="actor.py" pinned="false" current-in-tab="false">
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@@ -137,8 +129,8 @@
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@@ -150,7 +142,7 @@
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@@ -166,18 +158,6 @@
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@@ -256,20 +236,21 @@
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         <option value="$PROJECT_DIR$/core/controller/actor_controller.py" />
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-        <option value="$PROJECT_DIR$/core/http_endpoints/http_api.py" />
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         <option value="$PROJECT_DIR$/core/plugin.py" />
         <option value="$PROJECT_DIR$/core/websocket.py" />
         <option value="$PROJECT_DIR$/core/database/orm_framework.py" />
-        <option value="$PROJECT_DIR$/core/helper/utils.py" />
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         <option value="$PROJECT_DIR$/config/config.yaml" />
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         <option value="$PROJECT_DIR$/core/extension/dummy/__init__.py" />
-        <option value="$PROJECT_DIR$/core/api/extension.py" />
         <option value="$PROJECT_DIR$/core/api/actor.py" />
         <option value="$PROJECT_DIR$/core/api/cbpiactor.py" />
         <option value="$PROJECT_DIR$/core/api/sensor.py" />
+        <option value="$PROJECT_DIR$/core/helper/jsondump.py" />
+        <option value="$PROJECT_DIR$/core/helper/utils.py" />
+        <option value="$PROJECT_DIR$/core/http_endpoints/http_api.py" />
+        <option value="$PROJECT_DIR$/core/api/extension.py" />
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@@ -378,29 +359,7 @@
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@@ -422,6 +381,32 @@
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+              <option name="myItemType" value="com.intellij.ide.projectView.impl.nodes.ProjectViewProjectNode" />
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@@ -647,7 +632,6 @@
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@@ -655,7 +639,7 @@
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+      <window_info id="Project" active="true" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24957556" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
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@@ -797,34 +781,6 @@
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@@ -900,14 +856,6 @@
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@@ -946,33 +894,67 @@
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+    </entry>
+    <entry file="file://$PROJECT_DIR$/core/helper/jsondump.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/core/utils/utils.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="225">
+          <caret line="15" column="0" lean-forward="false" selection-start-line="15" selection-start-column="0" selection-end-line="15" selection-end-column="0" />
+          <folding>
+            <element signature="e#0#11#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/core/utils/__init__.py">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
   </component>
 </project>
\ No newline at end of file
diff --git a/core/api/__pycache__/actor.cpython-36.pyc b/core/api/__pycache__/actor.cpython-36.pyc
new file mode 100644
index 0000000..723db33
Binary files /dev/null and b/core/api/__pycache__/actor.cpython-36.pyc differ
diff --git a/core/api/__pycache__/extension.cpython-36.pyc b/core/api/__pycache__/extension.cpython-36.pyc
new file mode 100644
index 0000000..ff1f04a
Binary files /dev/null and b/core/api/__pycache__/extension.cpython-36.pyc differ
diff --git a/core/api/actor.py b/core/api/actor.py
index 12cde68..8945e31 100644
--- a/core/api/actor.py
+++ b/core/api/actor.py
@@ -2,7 +2,7 @@
 import logging
 
 from core.api.extension import CBPiExtension
-from core.helper.utils import load_config as load
+from core.utils.utils import load_config as load
 logger = logging.getLogger(__file__)
 
 class CBPiActor(CBPiExtension):
diff --git a/core/api/extension.py b/core/api/extension.py
index c67f3e0..e29e462 100644
--- a/core/api/extension.py
+++ b/core/api/extension.py
@@ -1,6 +1,9 @@
 import logging
+import os
 
-from core.helper.utils import load_config as load
+import sys
+
+from core.utils.utils import load_config as load
 logger = logging.getLogger(__file__)
 logging.basicConfig(level=logging.INFO)
 
diff --git a/core/extension/dummy/__pycache__/__init__.cpython-36.pyc b/core/extension/dummy/__pycache__/__init__.cpython-36.pyc
index 3cf58a6..8e9a7bb 100644
Binary files a/core/extension/dummy/__pycache__/__init__.cpython-36.pyc and b/core/extension/dummy/__pycache__/__init__.cpython-36.pyc differ
diff --git a/core/helper/__pycache__/jsondump.cpython-36.pyc b/core/helper/__pycache__/jsondump.cpython-36.pyc
deleted file mode 100644
index 573acf4..0000000
Binary files a/core/helper/__pycache__/jsondump.cpython-36.pyc and /dev/null differ
diff --git a/core/helper/__pycache__/utils.cpython-36.pyc b/core/helper/__pycache__/utils.cpython-36.pyc
deleted file mode 100644
index 35907cb..0000000
Binary files a/core/helper/__pycache__/utils.cpython-36.pyc and /dev/null differ
diff --git a/core/helper/utils.py b/core/helper/utils.py
deleted file mode 100644
index eb0bc36..0000000
--- a/core/helper/utils.py
+++ /dev/null
@@ -1,8 +0,0 @@
-import yaml
-
-
-def load_config(fname):
-    with open(fname, 'rt') as f:
-        data = yaml.load(f)
-    # TODO: add config validation
-    return data
\ No newline at end of file
diff --git a/core/http_endpoints/__pycache__/http_api.cpython-36.pyc b/core/http_endpoints/__pycache__/http_api.cpython-36.pyc
index 58170c2..c99cfad 100644
Binary files a/core/http_endpoints/__pycache__/http_api.cpython-36.pyc and b/core/http_endpoints/__pycache__/http_api.cpython-36.pyc differ
diff --git a/core/http_endpoints/http_api.py b/core/http_endpoints/http_api.py
index 84e5f40..47c467d 100644
--- a/core/http_endpoints/http_api.py
+++ b/core/http_endpoints/http_api.py
@@ -3,7 +3,7 @@ from aiohttp import web
 from aiojobs.aiohttp import get_scheduler_from_app
 
 from core.api.decorator import request_mapping
-from core.helper.jsondump import json_dumps
+from core.utils.utils import json_dumps
 
 class HttpAPI():
 
diff --git a/core/http_endpoints/http_login.py b/core/http_endpoints/http_login.py
index 557add5..06a53c4 100644
--- a/core/http_endpoints/http_login.py
+++ b/core/http_endpoints/http_login.py
@@ -4,7 +4,7 @@ from aiohttp import web
 from aiohttp_auth import auth
 
 from core.api.decorator import request_mapping
-from core.helper.utils import load_config
+from core.utils.utils import load_config
 
 
 class Login():
diff --git a/core/helper/__init__.py b/core/utils/__init__.py
similarity index 100%
rename from core/helper/__init__.py
rename to core/utils/__init__.py
diff --git a/core/helper/__pycache__/__init__.cpython-36.pyc b/core/utils/__pycache__/__init__.cpython-36.pyc
similarity index 100%
rename from core/helper/__pycache__/__init__.cpython-36.pyc
rename to core/utils/__pycache__/__init__.cpython-36.pyc
diff --git a/core/utils/__pycache__/utils.cpython-36.pyc b/core/utils/__pycache__/utils.cpython-36.pyc
new file mode 100644
index 0000000..50be1f0
Binary files /dev/null and b/core/utils/__pycache__/utils.cpython-36.pyc differ
diff --git a/core/helper/jsondump.py b/core/utils/utils.py
similarity index 72%
rename from core/helper/jsondump.py
rename to core/utils/utils.py
index 762524d..d7d05a5 100644
--- a/core/helper/jsondump.py
+++ b/core/utils/utils.py
@@ -1,9 +1,18 @@
 import json
 from json import JSONEncoder
 
+import yaml
+
 from core.database.model import DBModel, ActorModel
 
 
+def load_config(fname):
+    with open(fname, 'rt') as f:
+        data = yaml.load(f)
+    # TODO: add config validation
+    return data
+
+
 class ComplexEncoder(JSONEncoder):
     def default(self, obj):
 
@@ -22,5 +31,6 @@ class ComplexEncoder(JSONEncoder):
             pass
         return None
 
+
 def json_dumps(obj):
-    return json.dumps(obj, cls=ComplexEncoder)
\ No newline at end of file
+    return json.dumps(obj, cls=ComplexEncoder)
diff --git a/logs/first_logfile2.log b/logs/first_logfile2.log
index c4032f1..ed8f241 100644
--- a/logs/first_logfile2.log
+++ b/logs/first_logfile2.log
@@ -1,15 +1,12 @@
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diff --git a/logs/first_logfile2.log.2018-11-01_21-20 b/logs/first_logfile2.log.2018-11-01_21-20
deleted file mode 100644
index cd16989..0000000
--- a/logs/first_logfile2.log.2018-11-01_21-20
+++ /dev/null
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diff --git a/logs/first_logfile2.log.2018-11-01_21-25 b/logs/first_logfile2.log.2018-11-01_21-25
new file mode 100644
index 0000000..eae4689
--- /dev/null
+++ b/logs/first_logfile2.log.2018-11-01_21-25
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