@ledgerhq/coin-near/lib-es/getFeesForTransaction.js

Near Coin integration

import { BigNumber } from "bignumber.js";
import { getCurrentNearPreloadData } from "./preload";
import { getGasPrice } from "./api";
import { isImplicitAccount, getStakingFees } from "./logic";
const getEstimatedFees = async (transaction) => {
    const rawGasPrice = await getGasPrice();
    const gasPrice = new BigNumber(rawGasPrice);
    if (["stake", "unstake", "withdraw"].includes(transaction.mode)) {
        return getStakingFees(transaction, gasPrice);
    }
    const { createAccountCostSend, createAccountCostExecution, transferCostSend, transferCostExecution, addKeyCostSend, addKeyCostExecution, receiptCreationSend, receiptCreationExecution, } = getCurrentNearPreloadData();
    let sendFee = transferCostSend.plus(receiptCreationSend);
    let executionFee = transferCostExecution.plus(receiptCreationExecution);
    if (isImplicitAccount(transaction.recipient)) {
        sendFee = sendFee.plus(createAccountCostSend).plus(addKeyCostSend);
        executionFee = executionFee.plus(createAccountCostExecution).plus(addKeyCostExecution);
    }
    const fees = sendFee.multipliedBy(gasPrice).plus(executionFee.multipliedBy(gasPrice));
    return fees;
};
export default getEstimatedFees;
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