dvl-exchange

Exchange registry for asset transactions.

Installing

You need to have a running instance of PostgreSQL, capable of connecting via psql. The user defaults to $USER. You can override default values by creating a ~/.dvl-exchange/config file.

git clone https://github.com/ulisseslima/dvl-exchange
cd dvl-exchange
./setup

Usage

Note: tickers have to use the same name used by Yahoo Finance API:

dvlx-new-op BUY 10 SPHQ 531.70 USD '2022-01-11'
dvlx-new-op BUY 9 GGRC11.SA 1051.11 BRL '2022-01-3'

The price value (arg 4) refers to the price of the whole operation.

View your latest ops:

dvlx-select-ops

View your current consolidated position:

dvlx-position

Syncing with CEI

CEI doesn't have a public API, but you can use the script below by manually defining CEI_KEY_GUID and CEI_KEY_BEARER in your local config file (~/.dvl-exchange/config). You can get those values by logging-in in a browser and inspecting network requests.

dvlx-sync-cei

APIs used

Cron Sync

Example for using cron to automatically sync values and create historical data from desired tickers:

0 10-18 * * 1-5 env USER=$LOGNAME $HOME/git/dvl-exchange/snapshot.sh >> /tmp/general.log

It will get prices from all the tickers you registered from 10 am to 18 am, on weekdays.

Useful Links

About

Exchange registry for asset transactions.

GNU General Public License v3.0

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