chainsafe-bls/src/index.ts

import type {IBls} from "./interface.js";
import {getImplementation} from "./getImplementation.js";

// Thanks https://github.com/iliakan/detect-node/blob/master/index.esm.js
const isNode = Object.prototype.toString.call(typeof process !== "undefined" ? process : 0) === "[object process]";

let bls: IBls;
try {
  bls = await getImplementation(isNode ? "blst-native" : "herumi");
} catch (e) {
  bls = await getImplementation("herumi");
}

export default bls;