@waku/enr/dist/creator.js

ENR (EIP-778) for Waku

import { utf8ToBytes } from "@waku/utils/bytes";
import { compressPublicKey } from "./crypto.js";
import { ENR } from "./enr.js";
export class EnrCreator {
    static fromPublicKey(publicKey, kvs = {}) {
        // EIP-778 specifies that the key must be in compressed format, 33 bytes
        if (publicKey.length !== 33) {
            publicKey = compressPublicKey(publicKey);
        }
        return ENR.create({
            ...kvs,
            id: utf8ToBytes("v4"),
            secp256k1: publicKey
        });
    }
    static async fromPeerId(peerId, kvs = {}) {
        switch (peerId.type) {
            case "secp256k1":
                return EnrCreator.fromPublicKey(peerId.publicKey.raw, kvs);
            default:
                throw new Error();
        }
    }
}
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