TRS-80: I applaud you for automating your downloads using Selenium. It
works really quite well and I'm using it myself to download ETF basket
compositions (https://github.com/blais/baskets; warning: this isn't
polished code). It works well, but I concur with Justus: if you don't run
it very regularly you're bound to find out that it breaks as soon as even
minor things on the websites change. It's a matter of constant gardening.

Justus; I agree with what you said. It's mostly not worth the effort
(unless you're having fun doing it, or you want to update very frequently).

BTW, "baskets" is a project that would benefit from the participation,
contribution and constant gardening by a multitude of people, and unlike
banks, there's no personal password to downloading these portfolios and
there are only a relatively small number of ETF issuers; many would benefit
from having a unified source of portfolio compositions for ETFs. There are
commercial services selling this and it's expensive. I think we could even
extend the codebase to update an associated separate git repo with the
latest values for a broad spectrum of these portfolios so that others
wouldn't even have to run webdriver themselves (instead of running a
database, just using files with a simple API to obtain the data in a common
way across all issuers). Right now it downloads the portfolio files to a
local cache; I should have had it write to a git repo instead.

Anyhow, I use this to deaggregate my ETF positions and be able to surface
my specific exposure to a particular stock, across all positions, across
all accounts. Beancount provides the input portfolio. And of course, I
don't run it often enough... I had to make fixes to it a few days ago and
it's still not fully operational on all my ETFs. So little time...





On Thu, Jul 16, 2020 at 9:26 AM Justus Pendleton <justu...@gmail.com> wrote:

> I'm somewhat amused that you don't have time to spend five minutes once a
> month downloading CSV files but you have the many, many hours required to
> investigate, implement, and write about your alternative that saves five
> minutes a month :)
>
> Your approach won't work with any institution that has 2FA and I can't
> imagine not having 2FA on my financial accounts.
>
> Also, having spent many years dealing with substantial Selenium test
> suites, they are extremely brittle and required a surprising amount of
> ongoing maintenance. Failures due to timeouts from some DOM element taking
> too long to arrive, changes in the DOM breaking everything, etc. For a
> small personal project those may not be as frustrating as they were for a
> commercial software effort, though.
>
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