Support all symbols

[chrisleekr]

Is your proposal related to a problem?

No, just improvement.

Describe the solution you'd like

The bot is currently only providing FIAT to trade. However, the bot itself can trade different pairs such as BTCBNB/XRPBNB.
The only issue with this feature is setting Max Purchase Amount. For convenience, the bot was simply setting 100 for the Max Purchase Amount. It is working for FIATs; however, it does not work for other pairs.

I did a bit of research and found each symbol has filters called MIN_NOTIONAL, which specifies the minimum order amount. Below is the example of XRPBNB.

{
    "filterType": "MIN_NOTIONAL",
    "minNotional": "0.10000000",
    "applyToMarket": true,
    "avgPriceMins": 5
}

I think the following changes can make this feature working.

1. Remove Max Purchase Amount from the global configuration.
2. When adding new coin pair, dynamically calculate Max Purchase Amount based on the minimum notional.
   • i.e. XRPBNB minimum notional (0.1) * 10 = max purchase amount (1)
   • i.e. BNBBTC minimum notional (0.0001) * 10 = max purchase amount (0.001)
   • i.e. BNBUSDT minimum notional (10) * 10 = max purchase amount (100)
3. If the trader wants to increase max purchase amount, then customise the symbol configuration.

Describe alternatives you've considered

Just keep trading with FIATs only.

Additional context

N/A

[dodavies]

will this allow adding alternate pairs.
I want to track doge/btc

[chrisleekr]

Hey @dodavies
It does already with the PR #77
Take a look. Note that the PR is still in development/stablising.