When Binance Trade Bot is running use it's database api instead of operating on the database file

[lorcalhost]

The mysqlalchemy session implementation used in Binance Trade Bot only updates the database file every now and then and at the end of the session.
To fetch good data switch to their database API.

Thanks @DmytroLitvinov for finding the cause of the slow data update problem.

[lorcalhost]

The api server should be launched using the following command:

gunicorn binance_trade_bot.api_server:app -k eventlet -w 1 --threads 1 -b 0.0.0.0:5123

Dependencies: python3-gunicorn==20.0.4-3

[lorcalhost]

Endpoints are:

• /api/value_history/<coin> or /api/value_history
• /api/total_value_history
• /api/trade_history
• /api/scouting_history
• /api/current_coin
• /api/current_coin_history
• /api/coins
• /api/pairs

[lorcalhost]

This issue was created in an attempt to fix sometimes getting outdated data from the database.
After a few days of testing on PR #24 I have to say the behavior has not changed.

Furthermore I believe this issue should not be resolved / does not have high priority.

[titulebolide]

Hey @lorcalhost
Regarding the updating of the sqlalchemy db, I'm not sure you have any way of retrieving the data, because the idea behind the update at the end of the session is to avoid repetitive writes to the disk. The data is only cached on a local session probably proper to the socket. If you open a new socket to the db you probably won't be ble to see the pending changes?