Thread 106396363

I still dont' know what the fuck "Business logic" means when they post it on hackernews

>>106396363 (OP)
Back end logic of your app, not the UI

create_user_account()
send_welcome_email()
steal_credit_card_info()

That's business logic

>>106396363 (OP)
It is the thing wagies are making when they pretend that they know how to program.

>>106396363 (OP)
it is the code which does the things your business needs to do. if you run a website where people can order stuff to get delivered to their house, the code that processes orders and schedules deliveries is your business logic.
the library that you use to communicate to your database is not part of your business logic.

>>106396891
so it's just the "subject matter expertise" code

>>106396955
i have no idea what that means.
it is the code which you don't need to explain to a third-party who is helping you solve a problem.
>i can't connect to my database
>my business logic calls db_lib.load() and it doesn't work

>>106396955
Yes. It’s most stuff that isn’t infrastructure or protocol. The http server isn’t business logic, choosing Postgres isn’t business logic, cloud isn’t business logic, your CI/CD isn’t business logic.

But your data model, your services, most things beyond infrastructure and boilerplate - those are business logics.

>>106396363 (OP)
you make a web app to process sad pepe images into happy pepe images
the "business logic" would be:
1. validating the file is a supported image
2. analyzing it for a sad pepe
3. transforming it into a happy variant
4. serving the user with the new version

>>106397007
thanks now i get it!

>>106396804
this

>>106396363 (OP)
The things that are always poorly defined and change all the time.

>>106396363 (OP)
its the only part where you actually program things
everything else is boilerplate

>>106397126
I'd rather write boilerplate than work on something some retard non-techie came up with.

>>106397224
Too bad, you're working on this mangled pile of garbage anyway.
And no, you can't refactor it.

>>106396363 (OP)
Guys explain it to me what's the business logic of 4chan?
Is it the CRUD stuff? the mod tools? the ad selling and ad serving? all that?

>>106397769
its packaging up data for intelligence agencies

>>106397855
so business logic is just the code related to the part that makes money but not the code for all the parts that make users stay here?

Business stuff