state_queryStorageAt - Asset Hub RPC Method
Batch query storage at a block on Asset Hub. Essential for efficient state queries.
Query multiple storage keys at a specific block on Asset Hub.
Use Cases
- Batch queries - Efficiently query multiple storage items
- Snapshot state - Get consistent multi-key state for native stablecoin transfers (USDC, USDT), DOT staking and governance, and cross-chain asset management via XCM
- Data analysis - Compare storage across blocks
Request Parameters
Array of storage keys
Block hash for query
Response Body
Code Examples
curl https://api-asset-hub-polkadot.n.dwellir.com/<YOUR_API_KEY>/YOUR_API_KEY \
-X POST \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "state_queryStorageAt",
"params": [[""]],
"id": 1
}'import { ApiPromise, WsProvider } from '@polkadot/api';
const provider = new WsProvider('wss://api-asset-hub-polkadot.n.dwellir.com/YOUR_API_KEY');
const api = await ApiPromise.create({ provider });
// Query multiple accounts at once
const accounts = ['5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY'];
const entries = await api.query.system.account.multi(accounts);
entries.forEach((info, idx) => {
console.log(`Account ${idx}: ${info.data.free.toString()}`);
});
await api.disconnect();Related Methods
state_getStorage- Single storage querystate_getKeysPaged- Enumerate keys