library-pricer

📚💰 library-pricer

This is a quick tool that takes a csv file for input (via os.Stdin) and fetches prices using isbn.nu that it then adds as additional columns to a csv output (written to os.Stdout).

Be Nice

isbn.nu specifically states that their website is meant for human/manual lookups. The tool tries to be nice by throttling and making requests very slowly. It's intended to be used along with a personal or small library. Let's say you wanted to find out how much your book collection is worth for future insurance claims. isbn.nu is well within their rights to block access. That said, I hope that no one behind isbn.nu is going to be mad with this limited use 🙇‍♂️. I'm really thankful for this site to exist as alternatives aren't straightforward or ideal for normal individuals.

Requirements

This uses Go 1.12 or higher.

Install

go install github.com/alexandre-normand/library-pricer

Usage

You'll need a csv that has a isbn column. Find the column number holding the isbn and take note as you'll need to specify it to run library-pricer. To get the full usage, just do:

library-pricer --help
usage: library-pricer --isbnColumn=ISBNCOLUMN [<flags>]

Flags:
      --help                   Show context-sensitive help (also try --help-long and --help-man).
      --isbnColumn=ISBNCOLUMN  The column containing the isbn to use when looking up prices (first
                               column starting at 1)
      --withHeaderRow          Indicates if a header row should be read from the input and written in
                               the output
  -t, --throttleTime=15s       Sleep time between calls to isbn.nu (be easy on them).
      --version                Show application version.