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ARK-Builders / ARK-Rate

ARK Rate is a tiny convenience app for quickly converting multiple currencies at the same time
https://www.ark-builders.dev/apps/rate/
MIT License
2 stars 2 forks source link

Exchange rate dynamics tracking/plotting #15

Open kirillt opened 1 year ago

kirillt commented 1 year ago

The feature should allow user to track some currency pair, recording time-based log of exchange rates. Later, the user should be able to see the plot. This would allow user to monitor custom exchange pairs, e.g. ATOM/DOT which is not very common pair on exchanges.

kirillt commented 1 year ago

Format for files storing history of rates should be simple CSV prepended by string mentioning currency pair.

Example:

ATOM/DOT
date, rate
Nov 16 12:00:00, 1.77
Nov 17 12:00:00, 1.82
Nov 18 12:00:00, 1.78
Nov 19 12:00:00, 1.76
Nov 20 12:00:00, 1.81
kirillt commented 1 year ago

The feature requires separate screen, where user could:

  1. Start tracking of a currency pair.
  2. View plots for already tracked pairs.
  3. Select folder on disk to store CSV files.
kirillt commented 1 year ago

Historical data can be provided by openexchangerates.com, no need to record it by user.