@eth-optimism/balance-monitor/dist/agent.js

[Optimism] Forta Agent that reports whether certain accounts have fallen below some balance

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.accounts = void 0;
const forta_agent_1 = require("forta-agent");
const ethers_1 = require("ethers");
const utils_1 = require("./utils");
exports.accounts = [
    {
        name: 'Sequencer',
        address: process.env.SEQUENCER_ADDRESS,
        thresholds: {
            danger: ethers_1.utils.parseEther(process.env.SEQUENCER_DANGER_THRESHOLD),
        },
    },
    {
        name: 'Proposer',
        address: process.env.PROPOSER_ADDRESS,
        thresholds: {
            danger: ethers_1.utils.parseEther(process.env.PROPOSER_DANGER_THRESHOLD),
        },
    },
];
const provideHandleBlock = (provider) => {
    return async (blockEvent) => {
        const findings = [];
        for (const [, account] of exports.accounts.entries()) {
            const accountBalance = ethers_1.BigNumber.from((await provider.getBalance(account.address, blockEvent.blockNumber)).toString());
            if (accountBalance.lte(account.thresholds.danger)) {
                const alertId = `OPTIMISM-BALANCE-DANGER-${account.name}`;
                const description = (0, utils_1.describeFinding)(account.address, accountBalance, account.thresholds.danger);
                if (process.env.OPS_GENIE_KEY !== undefined) {
                    await (0, utils_1.createAlert)({ alias: alertId, message: description });
                }
                findings.push(forta_agent_1.Finding.fromObject({
                    name: 'Minimum Account Balance',
                    description,
                    alertId,
                    severity: forta_agent_1.FindingSeverity.High,
                    type: forta_agent_1.FindingType.Info,
                    metadata: {
                        balance: accountBalance.toString(),
                    },
                }));
            }
        }
        await (0, utils_1.heartBeat)();
        return findings;
    };
};
const l1Provider = new ethers_1.providers.JsonRpcProvider(process.env.L1_RPC_URL);
exports.default = {
    provideHandleBlock,
    handleBlock: provideHandleBlock(l1Provider),
};
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