Package Exports

lworks-client
lworks-client/dist/index.js

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Readme

LedgerWorks Client

This library is intended to be used with the LedgerWorks Hedera Mirror and Ledger Works' notification service Sentinel.

To learn more about these services, see Mirror Docs and Sentinel Docs.

The client uses node-fetch with automatic retry logic provided by async-retry and custom authentication handling. Sign up for a free account if you don't have an existing access key. By default, this library will provide anonymous usage data back to LedgerWorks.

Support and questions should be directed to our discord.

Installation

npm install lworks-client

Mirror Usage

Once your access token is configured, you can call the mirror providing a network and endpoint (Endpoint documentation can be found on the Hedera public mirror).

const { callMirror, MirrorResponse } = require("lworks-client");

await callMirror<MirrorResponse.Schemas["TransactionsResponse"]>
(
  "/api/v1/transactions?limit=100",
  { Network: Network.Mainnet }
)

Call Sentinel

import { queryRules, getRuleById, deleteRuleById SentinelTypes, getRuleById } from "lworks-client";

// Query all rules targeting HCS Topic activity
const result = await queryRules({
  network: Network.Testnet,
  ruleType: SentinelTypes.StreamsRuleType.HCSMessagesByTopicId,
});

let rules = result.rules;
// simple pagination example
if(result.next) {
  const result2 = await queryRules({
    network: Network.Testnet,
    ruleType: SentinelTypes.StreamsRuleType.HCSMessagesByTopicId,
    next: result1.next,
  });

  rules = rules.concat(result2.rules);
}

  if(rules.length > 0) {
    // Delete example
    await deleteRuleById(rule[0].ruleId, { network:  Network.Testnet });

  // Sentinel update and delete operations are asynchronous.
  // E.g., the Sentinel API returns a 202 status code.
  // Here, we wait for the rule deletion to be processed.
  // Note: This code is for demonstrational purposes only and should not be used as written.
  let ruleDeleted = false;
  while(true) {
    const deletedRule = getRuleById(rule[0].ruleId, { network:  Network.Testnet });
    if(deletedRule === undefined) {
      break;
    }
  }
}

Options

The global configuration object can be configured with a single call or with individual set<OPTION> calls.

This global options has the following type

type Config = {
  disableTracking: boolean;
  network: null | Network;
  accessToken: null | string;
};

Configure Access Token

Get your access token(s) from https://app.lworks.io/api-access-tokens

Support both mainnet and testnet usage by setting access tokens for both on the environment

export LWORKS_TESTNET_TOKEN=462c5e6dd0314fdbbbb48497949ba201
export LWORKS_MAINNET_TOKEN=a1a4de795a8b427b68a9a068fd81245b

Support single network usage by setting a single token on the environment
```
export LWORKS_TOKEN=b226ac68f00b444b6ab249a029bd01d8
```

Programmatically configure a single token by

import { setAccessToken } from "lworks-client";

setAccessToken("b226ac68f00b444b6ab249a029bd01d8");

 import { configure } from "lworks-client";

 configure({
 accessToken: "b226ac68f00b444b6ab249a029bd01d8",
 });

Configure Network

If you only plan on using a single network, you can set the network and the omit it on each call.

import { setNetwork } from "lworks-client";

setNetwork("mainnet");

import { configure } from "lworks-client";

configure({
  network: Network.Mainnet,
});

Configure anonymous metrics

Disable anonymous metric collection by calling one of the following

import { configure } from "lworks-client";

configure({
  disableTracking: true,
});

import { disableTracking } from "lworks-client";

disableTracking();