I am using waitress on IIS with Flask.
I have a route that sets a session as follows
@gp_clinicals_bp.route("/setting", methods=["POST","GET"])
def gp_clinicals():
session["gp_clinicals_meds_repeat"] = "123456"
return session["gp_clinicals_meds_repeat"]
This returns, unsurprisingly:
123456
I have another route as follows:
@gp_clinicals_bp.route("/testing", methods=["POST","GET"])
def gp_clinicals_test():
return session["gp_clinicals_meds_repeat"]
Now, I get nothing back and the following in the error log
2022-08-02 20:03:51,126 - ERROR - app.py - log_exception - 1455 - Exception on /gp-clinicals/medication-repeat [GET]
Traceback (most recent call last):
File "C:\Python310\lib\site-packages\flask\app.py", line 2077, in wsgi_app
response = self.full_dispatch_request()
File "C:\Python310\lib\site-packages\flask\app.py", line 1525, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Python310\lib\site-packages\flask\app.py", line 1523, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Python310\lib\site-packages\flask\app.py", line 1509, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
File "E:\Apps\dev\digital\gp_clinicals\gp_clinicals.py", line 158, in gp_clinicals_medication_repeat
return str(session["gp_clinicals_meds_repeat"])
KeyError: 'gp_clinicals_meds_repeat'
2022-08-02 20:03:51,128 - ERROR - __init__.py - handle_error_500 - 92 - 500 Internal Server Error: The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.
I'm the only one on the server. Below is a snippet from my initilisation file:
"""Initialize Flask app."""
import logging
import os
from logging.handlers import RotatingFileHandler
from flask import Flask, render_template, flash,request
from flask_session import Session
from flask_assets import Environment
from config import Config
if Config.FLASK_ENV == "development" and Config.DD_SERVICE:
patch_all()
sess = Session()
def init_app():
"""Create Flask application."""
app = Flask(__name__, instance_relative_config=False)
app.config["CACHE_TYPE"] = "null"
app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
app.config['TEMPLATES_AUTO_RELOAD'] = True
app.config["SESSION_TYPE"] = "filesystem"
app.config.from_object("config.Config")
assets = Environment()
assets.init_app(app)
sess.init_app(app)
What's going wrong? In the flask_session folder I am seeing files being created
Any advice? I tried using single apostophes instead of quotes but no go there either
The site in IIS is running through a reverse proxy in IIS - could that be doing it?
