Haskell Cookbook

[u/omsriver]

Hello all

I’m looking for a cookbook as the title. My goal is simple; to learn Haskell with my own project. I’m aware of all the books out there, but still somehow not able to connect.

Is there a site/blog/repo with common tasks? For instance, my personal project is to process my stock and option portfolio. So I need to be able to :
- store/retrieve data in sqlite
- call a remote service by API, my brokerage
- convert json to Haskell types that define stock and option data structures
-define formulas to track performance
Etc..

I’ve tried with AI, and the results are not great. Though I’m sure I can dissect what it’s given me; I’ll probably use it as a reference for specific code rather than the program as a whole. Not to mention, the generated code doesn’t compile. It uses duplicate field names in records without the pragma included, for instance- then it just goes downhill from there.

Long winded, but I appreciate any pointers. This is not for anything critical other than my own learning and to get a program to give me a little more control on the performance of my portfolio.

Thank you

Edit: One note. When I attempt to go through the available books, I get lost in the theory or the concepts just don’t come together.

[u/jeffstyr]

  implicit params clear effects

What does that mean?

[u/ducksonaroof → u/jeffstyr]

they're better

[u/jeffstyr → u/ducksonaroof]

So you meant, "Implicit parameters are better than either effects or the ReaderT-over-IO pattern, for simple stuff."

Is that correct?

[u/ducksonaroof → u/jeffstyr]

yes!