@alchemy/aa-core/dist/esm/actions/smartAccount/buildUserOperationFromTxs.js

viem based SDK that enables interactions with ERC-4337 Smart Accounts. ABIs are based off the definitions generated in @account-abstraction/contracts

import { fromHex } from "viem";
import { isBaseSmartAccountClient } from "../../client/isSmartAccountClient.js";
import { AccountNotFoundError } from "../../errors/account.js";
import { IncompatibleClientError } from "../../errors/client.js";
import { TransactionMissingToParamError } from "../../errors/transaction.js";
import { bigIntMax } from "../../utils/index.js";
import { buildUserOperation } from "./buildUserOperation.js";
export async function buildUserOperationFromTxs(client, args) {
    const { account = client.account, requests, overrides, context } = args;
    if (!account) {
        throw new AccountNotFoundError();
    }
    if (!isBaseSmartAccountClient(client)) {
        throw new IncompatibleClientError("BaseSmartAccountClient", "buildUserOperationFromTxs", client);
    }
    const batch = requests.map((request) => {
        if (!request.to) {
            throw new TransactionMissingToParamError();
        }
        return {
            target: request.to,
            data: request.data ?? "0x",
            value: request.value ? fromHex(request.value, "bigint") : 0n,
        };
    });
    const mfpgOverridesInTx = () => requests
        .filter((x) => x.maxFeePerGas != null)
        .map((x) => fromHex(x.maxFeePerGas, "bigint"));
    const maxFeePerGas = overrides?.maxFeePerGas != null
        ? overrides?.maxFeePerGas
        : mfpgOverridesInTx().length > 0
            ? bigIntMax(...mfpgOverridesInTx())
            : undefined;
    const mpfpgOverridesInTx = () => requests
        .filter((x) => x.maxPriorityFeePerGas != null)
        .map((x) => fromHex(x.maxPriorityFeePerGas, "bigint"));
    const maxPriorityFeePerGas = overrides?.maxPriorityFeePerGas != null
        ? overrides?.maxPriorityFeePerGas
        : mpfpgOverridesInTx().length > 0
            ? bigIntMax(...mpfpgOverridesInTx())
            : undefined;
    const _overrides = {
        maxFeePerGas,
        maxPriorityFeePerGas,
    };
    const uoStruct = await buildUserOperation(client, {
        uo: batch,
        account,
        context,
        overrides: _overrides,
    });
    return {
        uoStruct,
        batch,
        overrides: _overrides,
    };
}
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