Flask app not working

hey there am very new to railway, i would love to get some help, I am not familiar with hosting a website either. i would appreciate it if someone could walk me through setting it up, I've seen some youtube tutorials about hosting a flask app on railway but none of them worked for some reason.

proejct id: b18dbcc6-1581-49d3-9f4b-7a0659942430

Hey, railway provides an env variable port. Could you ensure your app is listening on this, rather than 5000 or however it is currently configured?

how can I do that
sorry but I've never hosted an app before

Can you share your repo?

Change like this

- app.run(debug=True)

+ import os
+ PORT = os.getenv('PORT')
+ app.run(host='0.0.0.0', port = PORT, debug=True)

oh it worked
but now
i get this error after pressing one of the buttons

i think because tabula-py relies on java

I think here you need to add java as one of the build providers. If that doesn't work, someone smarter than me might have to help. 🙂

ill try that :)
wait..
I dont have that option in settings

Oh, you need to join priority boarding for that apparently. There's also a way to do it with config file I'm sure but I'm on my phone now and not the most familiar with it.
You can join that with /beta

oh alright, thank you man, appreciate the help!! <3
hey there man 🤣
new day new error

Did adding java in the profiders work? I think you can just add a nixpacks.toml file in your root with

providers = ['...', 'java']

or something like this
This looks like an error with your code. There is no year.
It should be like this:

i added java in the providers

year = request.form.get('year')
if year:
your code

now this is the error that it gives
how does it work perfectly fine on a local host then??

where do I add this text?

Are you sure you selected a year when you receive this error? if you use year = request.form['year'] and there is no year selected you will get an error. if you do something like:

year = request.form.get('year')
if year:
  print(year)
else:
  year = 2022

then it will set the year to 2022 if no year is selected, hope this helps

it works perfectly fine in a local host
am pretty sure the problem is not with "year"

year = request.form['year'] will be a null value and you cant use it if year is not selected on the form

but im just using year as an example, it's the same for all the fields
I'm not sure why it works locally unless you had selected all the fields

the website requests a pdf from a different website, does that have anything to do with it?
thats really weird

ill look at your code again shortly but you should put some error handling to flash a message to your user if they forgot to fill out the whole form https://flask.palletsprojects.com/en/2.3.x/patterns/flashing/

alr man thanks!!

it shouldn't be an issue
in a railway.toml file in your root directory
https://nixpacks.com/docs/guides/configuring-builds