i have fastapi server which gets and mangles data. and calls numpy with that. data is badly formatted, i need to make it right. functional code is better for th

i have fastapi server which gets and mangles data. and calls numpy with that. data is badly formatted, i need to make it right. functional code is better for that. i do not want one more service now to be added in typescript, with effect ts. there are no apis for haskell or other functional langs for data i need.