Remove .env_example file and implement MetricsUpdater service for enhanced metrics tracking. Update bot.py to start and stop metrics updater, and improve database connection handling in CRUD operations with metrics tracking. Update README with details on metrics issues and fixes.

services/infrastructure/http_server.py

@@ -6,7 +6,7 @@ import time
 from typing import Optional
 
 from aiohttp import ClientSession, web
-from aiohttp.web import Request, Response
+from aiohttp.web import Request, Response, json_response
 from loguru import logger
 
 from config.constants import DEFAULT_HTTP_HOST, DEFAULT_HTTP_PORT, APP_VERSION, HTTP_STATUS_OK, HTTP_STATUS_SERVICE_UNAVAILABLE, HTTP_STATUS_INTERNAL_SERVER_ERROR
@@ -41,7 +41,8 @@ class HTTPServer:
         try:
             # Получаем метрики
             metrics_data = self.metrics_service.get_metrics()
-            content_type = self.metrics_service.get_content_type()
+            if isinstance(metrics_data, bytes):
+                metrics_data = metrics_data.decode('utf-8')
             
             # Записываем метрику HTTP запроса
             duration = time.time() - start_time
@@ -50,7 +51,7 @@ class HTTPServer:
             
             return Response(
                 text=metrics_data,
-                content_type=content_type,
+                content_type='text/plain; version=0.0.4',
                 status=HTTP_STATUS_OK
             )
             
@@ -104,8 +105,8 @@ class HTTPServer:
             self.metrics_service.record_http_request_duration("GET", "/health", duration)
             self.metrics_service.increment_http_requests("GET", "/health", http_status)
             
-            return Response(
-                json=health_status,
+            return json_response(
+                health_status,
                 status=http_status
             )
             
@@ -116,8 +117,8 @@ class HTTPServer:
             self.metrics_service.increment_http_requests("GET", "/health", 500)
             self.metrics_service.increment_errors(type(e).__name__, "health_handler")
             
-            return Response(
-                json={"status": "error", "message": str(e)},
+            return json_response(
+                {"status": "error", "message": str(e)},
                 status=HTTP_STATUS_INTERNAL_SERVER_ERROR
             )
     
@@ -149,8 +150,8 @@ class HTTPServer:
             self.metrics_service.record_http_request_duration("GET", "/ready", duration)
             self.metrics_service.increment_http_requests("GET", "/ready", http_status)
             
-            return Response(
-                json=ready_status,
+            return json_response(
+                ready_status,
                 status=http_status
             )
             
@@ -161,8 +162,8 @@ class HTTPServer:
             self.metrics_service.increment_http_requests("GET", "/ready", 500)
             self.metrics_service.increment_errors(type(e).__name__, "ready_handler")
             
-            return Response(
-                json={"status": "error", "message": str(e)},
+            return json_response(
+                {"status": "error", "message": str(e)},
                 status=HTTP_STATUS_INTERNAL_SERVER_ERROR
             )
     
@@ -278,8 +279,8 @@ class HTTPServer:
             self.metrics_service.record_http_request_duration("GET", "/", duration)
             self.metrics_service.increment_http_requests("GET", "/", 200)
             
-            return Response(
-                json=info,
+            return json_response(
+                info,
                 status=HTTP_STATUS_OK
             )
             
@@ -290,8 +291,8 @@ class HTTPServer:
             self.metrics_service.increment_http_requests("GET", "/", 500)
             self.metrics_service.increment_errors(type(e).__name__, "root_handler")
             
-            return Response(
-                json={"error": str(e)},
+            return json_response(
+                {"error": str(e)},
                 status=HTTP_STATUS_INTERNAL_SERVER_ERROR
             )