eth_getStorageAt - BSC

Example code for the eth_getStorageAt JSON RPC method. Сomplete guide on how to use eth_getStorageAt JSON RPC in GetBlock Web3 documentation.

This method returns the value from a storage position at a given address on the BNB Smart Chain. This allows reading raw contract storage, including private variables.

Parameters

Parameter

Type

Required

Description

address

string

Yes

Contract address

position

string

Yes

Storage position (hex)

blockNumber

string

Yes

Block number or "latest"

Request Example

cURL

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_getStorageAt",
    "params": [
        "0x55d398326f99059fF775485246999027B3197955",
        "0x0",
        "latest"
    ],
    "id": "getblock.io"
}'

request.js

const axios = require('axios');

const url = 'https://go.getblock.io/<ACCESS-TOKEN>/';

const payload = {
    jsonrpc: '2.0',
    method: 'eth_getStorageAt',
    params: [
        '0x55d398326f99059fF775485246999027B3197955',
        '0x0',
        'latest'
    ],
    id: 'getblock.io'
};

axios.post(url, payload, {
    headers: { 'Content-Type': 'application/json' }
})
.then(response => console.log(response.data))
.catch(error => console.error(error));

request.py

import requests

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = {
    "jsonrpc": "2.0",
    "method": "eth_getStorageAt",
    "params": [
        "0x55d398326f99059fF775485246999027B3197955",
        "0x0",
        "latest"
    ],
    "id": "getblock.io"
}

response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print(response.json())

main.rs

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();
    
    let payload = json!({
        "jsonrpc": "2.0",
        "method": "eth_getStorageAt",
        "params": [
            "0x55d398326f99059fF775485246999027B3197955",
            "0x0",
            "latest"
        ],
        "id": "getblock.io"
    });

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);
    
    Ok(())
}

Response Example

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x000000000000000000000000f68a4b64162906eff0ff6ae34e2bb1cd42fef62d"
}

Response Parameters

Parameter

Type

Description

result

string

32-byte storage value

Use Cases

Read private contract variables
Analyze proxy implementations
Debug contract state
Security research

Error Handling

Error Code

Description

-32602

Invalid params

-32603

Internal error

SDK Integration

ethers.js

const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');

const storage = await provider.getStorage(
    '0x55d398326f99059fF775485246999027B3197955',
    0
);
console.log(storage);

viem.js

import { createPublicClient, http } from 'viem';
import { bsc } from 'viem/chains';

const client = createPublicClient({
    chain: bsc,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const storage = await client.getStorageAt({
    address: '0x55d398326f99059fF775485246999027B3197955',
    slot: '0x0'
});
console.log(storage);

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