add server log

config.yaml

@@ -10,6 +10,10 @@ app:
 
   SQLALCHEMY_DATABASE_URI: sqlite:///sqlite.db
   # SQLALCHEMY_DATABASE_URI: mysql://username:password@server/db
+  
+  # LOGGING_LEVEL: CRITICAL | FATAL | ERROR | WARN | WARNING | INFO | DEBUG | NOTSET
+  LOGGING_LEVEL: INFO
+
 
 network:
   PROXY: http://127.0.0.1:7890

project/__init__.py

@@ -1,7 +1,10 @@
-from flask import Flask
+from flask import Flask, request
 from flask_sqlalchemy import SQLAlchemy
 from flask_login import LoginManager
 import yaml
+import logging
+import time
+import traceback
 
 # init SQLAlchemy so we can use it later in our models
 db = SQLAlchemy()
@@ -19,6 +22,7 @@ def create_app():
     app.config['OPENAI_API_KEY'] = conf['openai']['API_KEY']
     app.config['OPENAI_MODEL_NAME'] = conf['openai']['MODEL_NAME']
     app.config['OPENAI_PROMPT'] = conf['openai']['PROMPT']
+    app.config['LOGGING_LEVEL'] = conf['app']['LOGGING_LEVEL']
 
     db.init_app(app)
     login_manager = LoginManager()
@@ -48,3 +52,29 @@ def create_app():
 
 
 app = create_app()
+logger = logging.getLogger('waitress')
+logger.setLevel(app.config['LOGGING_LEVEL'])
+
+
+@app.before_request
+def before_request():
+    timestamp = time.strftime('[%Y-%b-%d %H:%M]')
+    logger.info('%s > %s %s %s %s', timestamp, request.remote_addr,
+                request.method, request.scheme, request.full_path)
+
+
+@app.after_request
+def after_request(response):
+    timestamp = time.strftime('[%Y-%b-%d %H:%M]')
+    logger.info('%s < %s %s %s %s %s', timestamp, request.remote_addr,
+                request.method, request.scheme, request.full_path, response.status)
+    return response
+
+
+@app.errorhandler(Exception)
+def exceptions(e):
+    tb = traceback.format_exc()
+    timestamp = time.strftime('[%Y-%b-%d %H:%M]')
+    logger.error('%s %s %s %s %s 5xx INTERNAL SERVER ERROR\n%s', timestamp,
+                 request.remote_addr, request.method, request.scheme, request.full_path, tb)
+    return e.status_code