opstack-kit-chains/_esm/utils/blob/blobsToCommitments.js

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import { hexToBytes } from '../encoding/toBytes.js';
import { bytesToHex } from '../encoding/toHex.js';
/**
 * Compute commitments from a list of blobs.
 *
 * @example
 * ```ts
 * import { blobsToCommitments, toBlobs } from 'viem'
 * import { kzg } from './kzg'
 *
 * const blobs = toBlobs({ data: '0x1234' })
 * const commitments = blobsToCommitments({ blobs, kzg })
 * ```
 */
export function blobsToCommitments(parameters) {
    const { kzg } = parameters;
    const to = parameters.to ?? (typeof parameters.blobs[0] === 'string' ? 'hex' : 'bytes');
    const blobs = (typeof parameters.blobs[0] === 'string'
        ? parameters.blobs.map((x) => hexToBytes(x))
        : parameters.blobs);
    const commitments = [];
    for (const blob of blobs)
        commitments.push(Uint8Array.from(kzg.blobToKzgCommitment(blob)));
    return (to === 'bytes'
        ? commitments
        : commitments.map((x) => bytesToHex(x)));
}
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