viem/_esm/utils/signature/serializeErc6492Signature.js

TypeScript Interface for Ethereum

import { erc6492MagicBytes } from '../../constants/bytes.js';
import { encodeAbiParameters } from '../abi/encodeAbiParameters.js';
import { concatHex } from '../data/concat.js';
import { hexToBytes } from '../encoding/toBytes.js';
/**
 * @description Serializes a ERC-6492 flavoured signature into hex format.
 *
 * @param signature ERC-6492 signature in object format.
 * @returns ERC-6492 signature in hex format.
 *
 * @example
 * serializeSignature({ address: '0x...', data: '0x...', signature: '0x...' })
 * // '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'
 */
export function serializeErc6492Signature(parameters) {
    const { address, data, signature, to = 'hex' } = parameters;
    const signature_ = concatHex([
        encodeAbiParameters([{ type: 'address' }, { type: 'bytes' }, { type: 'bytes' }], [address, data, signature]),
        erc6492MagicBytes,
    ]);
    if (to === 'hex')
        return signature_;
    return hexToBytes(signature_);
}
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