@exromany/lido-csm-sdk/dist/esm/common/utils/fetch-tree.js

[](https://github.com/lidofinance/lido-csm-sdk/blob/main/LICENSE.txt) [](h

import { StandardMerkleTree } from '@openzeppelin/merkle-tree';
import { compareLowercase } from './compare-lowercase.js';
import { fetchOneOf } from './fetch-json.js';
export const parseTree = (parse = JSON.parse) => (text) => {
    const data = parse(text);
    return StandardMerkleTree.load(data);
};
export const verifyRoot = (treeRoot) => (tree) => compareLowercase(tree.root, treeRoot);
export const fetchTree = async ({ urls, root, parse, }) => {
    const tree = await fetchOneOf({
        urls,
        parse: parseTree(parse),
        validate: verifyRoot(root),
    });
    return tree ?? null;
};
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