Lib.rs

Transaction multi payment

Overview

This noble provides functionality to accepted transaction fees in other currencies. Extends substrate's transaction-payment pallet.

Interface

Extends transaction-payment interface to add functionality to set desired currency and to add members who can add or remove accepted currencies. - set_currency - set selected currency in whci all transactions fees will be paid. Balance of selected currency must be non-zero. - add_member - only root can perform this action - remove_member - only root can perform this action

Implementation details

Transaction fees are paid in native currency by default. This pallet allows to set a different currency to pay fees with for an account. When the transaction fees is being paid and chosen currency is not native currency - swap is executed to obtain fee amount in native currency first. The swap (or buy) is done via selected AMM pool. Subsequently, the fee is paid in native currency.