@reservoir0x/relay-sdk/_esm/src/utils/prepareBatchTransaction.js

Relay is the Fastest and Cheapest Way to Bridge and Transact Across Chains.

export function canBatchTransactions(steps) {
    const firstStep = steps[0];
    const secondStep = steps[1];
    const hasIncompleteApproval = firstStep?.items?.some((item) => item.status === 'incomplete');
    const hasIncompleteDeposit = secondStep?.items?.some((item) => item.status === 'incomplete');
    return (firstStep?.id === 'approve' &&
        (secondStep?.id === 'deposit' || secondStep?.id === 'swap') &&
        hasIncompleteApproval &&
        hasIncompleteDeposit);
}
export function prepareBatchTransaction(steps) {
    const secondStepId = steps[1]?.id; // deposit or swap
    const batchedStep = {
        id: `approve-and-${secondStepId}`,
        action: 'Confirm transaction in your wallet',
        description: `Batching approval and ${secondStepId} transactions`,
        kind: 'transaction',
        items: [
            ...(steps[0].items || []),
            ...(steps[1].items || []).map((item) => {
                // mark the second step as complete
                item.status = 'complete';
                item.progressState = 'complete';
                return item;
            })
        ],
        requestId: steps[1].requestId ?? steps[0].requestId
    };
    return batchedStep;
}
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