@ledgerhq/coin-hedera/lib-es/network/rpc.js

Ledger Hedera Coin integration

import { Client } from "@hashgraph/sdk";
let _hederaClientPromise = null;
async function broadcastTransaction(transaction) {
    return transaction.execute(await getInstance());
}
async function createClient() {
    const client = await Client.forMainnetAsync();
    client.setMaxNodesPerTransaction(1);
    return client;
}
async function getInstance() {
    _hederaClientPromise ??= createClient().catch(error => {
        _hederaClientPromise = null;
        throw error;
    });
    return _hederaClientPromise;
}
// for testing purposes only, used to reset singleton client instance
async function _resetInstance() {
    try {
        const client = await _hederaClientPromise;
        client?.close();
    }
    catch {
        // intentionally ignored during clean up
    }
    finally {
        _hederaClientPromise = null;
    }
}
export const rpcClient = {
    getInstance,
    broadcastTransaction,
    _resetInstance,
};
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