An example of a large/medium backend project written with functional programming?

Question

Functional programming

There are programmers who prefer to use functional programming instead of OOP.

Can you give an example of non-learning projects using pure FP with minimal OOP?

It is desirable not a highly specialized library, but for example, a banal CRUD. I wonder how the architecture is built on such projects

Answer 1

backend code for site https://www.haskellers.com/ postgrest
code shellcheck code - static analyzer for bash scripts pandoc code - utilities for converting documents powered by yesod - link to projects using yesod idris language compiler code For writing CRUD it is better to use servant , but I don’t know open projects on it, so I didn’t throw links

Answer 2

1) Dmitry Soshnikov gave examples of controlling robots via the Internet. He said that command parsers are written very easily (in F#). Those. you write a human phrase to the robot like "Forward so many, then turn right so many degrees."
2) I was interested in the control language for "State Graph" controllers (Stateflow in MatLab, Simulink; Sequent Flow Chart in PLC) and Haskell: there are such developments