state_getStorageSizeAt

Description

Read SCALE‑encoded storage for a key (optionally at a specific block). Use to fetch on‑chain state deterministically and to implement historical reads.

Returns the size (in bytes) of the storage value for the key at the given block.

Code Examples

cURL

curl -X POST https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY \
+  -H 'Content-Type: application/json' \
+  -d '{"jsonrpc":"2.0","method":"state_getStorageSizeAt","params":["0x3a636f6465", "0x1e8a700fa840157d8d5617eac90ecd3b795d6469ddb8a9ec7dd2d051d806e85d"],"id":1}'

Python

import requests, json

url = 'https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY'
headers = {'Content-Type': 'application/json'}
payload = {
  "jsonrpc": "2.0",
  "method": "state_getStorageSizeAt",
  "params": [
    "0x3a636f6465",
    "0x1e8a700fa840157d8d5617eac90ecd3b795d6469ddb8a9ec7dd2d051d806e85d"
  ],
  "id": 1
}
res = requests.post(url, headers=headers, data=json.dumps(payload))
print(res.json()['result'])

JavaScript

const res = await fetch('https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "method": "state_getStorageSizeAt",
  "params": [
    "0x3a636f6465",
    "0x1e8a700fa840157d8d5617eac90ecd3b795d6469ddb8a9ec7dd2d051d806e85d"
  ],
  "id": 1
})
});
const data = await res.json();
console.log(data.result);