[BUG]: Tendermind fees too expensive

[smk762]

ref: KomodoPlatform/komodo-defi-framework#1894

• Tx fees are extra high for Atom transactions komodo-defi-framework#1847
• [enhancement] global fee calculation komodo-defi-framework#1848

This was mentioned previously in flutter app, the reply was for guis to use the "custom fee" in back end until a global solution is available.

In api repo, there is a constant for all tendermint coins, though fees may vary between iris/atom/cosmos. https://github.com/KomodoPlatform/komodo-defi-framework/blob/main/mm2src/coins/tendermint/ibc/mod.rs#L6

[cipig]

In api repo, there is a constant for all tendermint coins, though fees may vary between iris/atom/cosmos. https://github.com/KomodoPlatform/komodo-defi-framework/blob/main/mm2src/coins/tendermint/ibc/mod.rs#L6

That is GAS_LIMIT, not GAS_PRICE... the limit is to limit the amount of gas spent on certain operations... if the limit is exceeded during execution, the operation is cancelled... this is to prevent spending 10000 ATOM on a single tx (eg if you have an endless loop in your contract)

The price for the tx is GAS_USED * GAS_PRICE... i can't find any gas price definition in coins file, so i assume it's using some default... or the result of gas_price call to RPC nodes, that's how ERC20 is working
if gas_price calls are used, then maybe the calculation is wrong or RPC nodes return a too high fee
we could also set a gas price in coins file to fix this if the gas_price returns nonsense
What is the usual txfee in USD?