ssv-scanner
Version:
Tool for retrieving events data (cluster snapshots and owner nonce) from the SSV network contract.
70 lines • 2.89 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.NonceScanner = void 0;
const tslib_1 = require("tslib");
const ethers_1 = require("ethers");
const cli_progress_1 = tslib_1.__importDefault(require("cli-progress"));
const contract_provider_1 = require("../contract.provider");
const BaseScanner_1 = require("../BaseScanner");
class NonceScanner extends BaseScanner_1.BaseScanner {
async run(isCli) {
if (isCli) {
console.log('\nScanning blockchain...');
this.progressBar = new cli_progress_1.default.SingleBar({}, cli_progress_1.default.Presets.shades_classic);
}
try {
const data = await this._getValidatorAddedEventCount(isCli);
isCli && this.progressBar.stop();
return data;
}
catch (e) {
isCli && this.progressBar.stop();
throw new Error(e);
}
}
async _getValidatorAddedEventCount(isCli) {
const { contractAddress, abi, genesisBlock } = (0, contract_provider_1.getContractSettings)(this.params.network);
const provider = new ethers_1.ethers.JsonRpcProvider(this.params.nodeUrl);
const contract = new ethers_1.ethers.Contract(contractAddress, abi, provider);
let latestBlockNumber;
try {
latestBlockNumber = await provider.getBlockNumber();
}
catch (err) {
throw new Error('Could not access the provided node endpoint.');
}
try {
await contract.owner();
}
catch (err) {
throw new Error('Could not find any cluster snapshot from the provided contract address.');
}
let totalEventCount = 0;
let blockStep = this.MONTH;
isCli && this.progressBar.start(Number(latestBlockNumber), 0);
const filter = contract.filters.ValidatorAdded(this.params.ownerAddress);
for (let startBlock = genesisBlock; startBlock <= latestBlockNumber; startBlock += blockStep) {
try {
const endBlock = Math.min(startBlock + blockStep - 1, latestBlockNumber);
const logs = await contract.queryFilter(filter, startBlock, endBlock);
totalEventCount += logs.length;
isCli && this.progressBar.update(endBlock);
}
catch (error) {
if (blockStep === this.MONTH) {
blockStep = this.WEEK;
}
else if (blockStep === this.WEEK) {
blockStep = this.DAY;
}
else {
throw new Error(error);
}
}
}
isCli && this.progressBar.update(latestBlockNumber, latestBlockNumber);
return totalEventCount;
}
}
exports.NonceScanner = NonceScanner;
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