giacenza media (balance average)

Compute the balance average from the bank transaction statements as a CSV file.

The files should contain the full history of transations, positive and negative.

The csv is expected to have 2 relevant column

• Date The date of the transaction as "%Y-%m-%d" (i.e. 1970-10-22)
• Amount The amount moved (positive is incoming), the format must be specified as argument

Name of columns and number format can be specified at request time.

Build from source

• download haskell tools GHCUp
• fire ghcup tui and select ghc-9.4.5 as compiler

• cabal install

Run as a web server container from dockerhub locally

• need docker support from your operating system

• docker run -p 8080:8080 paolino/giacenza giacenza serve 0.0.0.0 8080 ""

Use the online instance

giacenza

Help from the commandline

Usage: giacenza serve HOST PORT PREFIX

  Start the web server

Available options:
  HOST                     The host to bind to
  PORT                     The port to bind to
  PREFIX                   The prefix to add to the http calls
  -h,--help                Show this help text

TODO

• Better error on CSV parsing issues
• Add multi year reporting by merging streams instead of streaming one result per year
• Use optionExt to have header and footer on --help