SessionKeyValidator SDK examples
Enable SessionKey
import { EtherspotBundler, ModularSdk, SessionKeyValidator, KeyStore } from '@etherspot/modular-sdk';
import * as dotenv from 'dotenv';
dotenv.config();
const secondsInAMonth = 30 * 24 * 60 * 60; // 2592000 seconds
async function main() {
const bundlerApiKey = process.env.API_KEY as string;
const walletPrivateKey = process.env.WALLET_PRIVATE_KEY as string;
const chainId = Number(process.env.CHAIN_ID);
// initializating sdk...
const modularSdk = new ModularSdk({ privateKey: walletPrivateKey },
{
chainId: chainId,
bundlerProvider: new EtherspotBundler(chainId, bundlerApiKey)
})
console.log('address: ', modularSdk.state.EOAAddress);
// get address of EtherspotWallet
const address: string = await modularSdk.getCounterFactualAddress();
console.log('\x1b[33m%s\x1b[0m', `EtherspotWallet address: ${address}`);
const token = process.env.TOKEN_ADDRESS as string;
const functionSelector = process.env.FUNCTION_SELECTOR as string;
const spendingLimit = '1000000000000000000000';
const validAfter = getEpochTimeInSeconds() + 31; // 10 seconds from now
const validUntil = getEpochTimeInSeconds() + secondsInAMonth;
console.log(`validAfter: ${validAfter} validUntil: ${validUntil}`);
// get instance of SessionKeyValidator
const sessionKeyModule = await SessionKeyValidator.create(
modularSdk,
new EtherspotBundler(chainId, bundlerApiKey)
)
const response = await sessionKeyModule.enableSessionKey(
token,
functionSelector,
spendingLimit,
validAfter,
validUntil,
KeyStore.AWS
);
console.log('\x1b[33m%s\x1b[0m', `UserOpHash: `, response.userOpHash);
console.log('\x1b[33m%s\x1b[0m', `SessionKey: `, response.sessionKey);
// get transaction hash...
console.log('Waiting for transaction...');
let userOpsReceipt = null;
const timeout = Date.now() + 60000; // 1 minute timeout
while ((userOpsReceipt == null) && (Date.now() < timeout)) {
await sleep(2);
userOpsReceipt = await modularSdk.getUserOpReceipt(response.userOpHash);
}
console.log('\x1b[33m%s\x1b[0m', `Transaction Receipt: `, userOpsReceipt);
const sessionKeys = await sessionKeyModule.getAssociatedSessionKeys();
console.log('\x1b[33m%s\x1b[0m', `AssociatedSessionKeys: `, sessionKeys);
const sessionData = await sessionKeyModule.sessionData(response.sessionKey);
console.log('\x1b[33m%s\x1b[0m', `SessionData: `, sessionData);
}
const getEpochTimeInSeconds = () => Math.floor(new Date().getTime() / 1000);