state_getStorage – Mythos JSON-RPC Method

state_getStorage retrieves runtime storage values at a given block state. On Mythos, use it to monitor NFT collection configs, marketplace order books, and token issuance without waiting for events.

Parameters

Parameter	Type	Required	Description
key	string	Yes	Hex-encoded storage key (Twox/Blake hashed)
blockHash	string	No	Block hash to query historical state

Example: Next NFT Collection ID

Mythos uses an incrementing NextCollectionId counter in pallet_nfts. Query it to determine the next available collection slot before launching a new drop.

curl https://api-mythos-archive.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "state_getStorage",
    "params": [
      "STORAGE_KEY_HEX",
      "0x608b663e3bcc47c0678baf6dbe449ac49e6ac6ddd5119ef494ca5b3b2dc2e5bb"
    ],
    "id": 42
  }'

Replace STORAGE_KEY_HEX with the output of api.query.nfts.nextCollectionId.key() or an equivalent tooling pipeline before running the request.

Decoding in JavaScript

import { ApiPromise, WsProvider } from '@polkadot/api';
import { u128 } from '@polkadot/types';

async function nextCollectionId() {
  const api = await ApiPromise.create({
    provider: new WsProvider('wss://api-mythos-archive.n.dwellir.com/YOUR_API_KEY')
  });

  const key = api.query.nfts.nextCollectionId.key();
  const raw = await api.rpc.state.getStorage(key);
  if (raw.isNone) throw new Error('Storage key missing');

  const id = new u128(api.registry, raw.unwrap());
  console.log('Next Mythos collection ID:', id.toString());
}

nextCollectionId().catch(console.error);

Tips

• Snapshot state_getStorage alongside marketplace events to reconcile escrow balances.
• Use blockHash when auditing DAO proposals or NFT drops that may have been reverted.
• Combine with state_queryStorageAt for successive key updates during live events.