eth_getStorageAt - Somnia

Example code for the eth_getStorageAt JSON-RPC method. Complete 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 Somnia network. This is useful for reading raw contract storage, analyzing state, and debugging smart contracts.

Parameters

Parameter

Type

Required

Description

address

string

Yes

Contract address

position

string

Yes

Storage slot position (hex)

blockNumber

string

Yes

Block number in hex, or "latest"

Request Example

cURL

curl -X POST https://go.getblock.io/<ACCESS-TOKEN>/ \
-H "Content-Type: application/json" \
-d '{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "method": "eth_getStorageAt",
  "params": [
    "0xContractAddress",
    "0x0",
    "latest"
  ]
}'

JavaScript (Axios)

const axios = require('axios');

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

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

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

Python

import requests
import json

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

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

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

Rust

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",
        "id": "getblock.io",
        "method": "eth_getStorageAt",
        "params": ["0xContractAddress", "0x0", "latest"]
    });

    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": "0x0000000000000000000000000000000000000000000000000000000000000001"
}

Response Parameters

Parameter

Type

Description

result

string

32-byte storage value at position

Use Cases

Read contract storage directly
Debug storage layout
Verify state variables
Analyze proxy contracts
Security auditing

Error Handling

Error Code

Description

-32602

Invalid params - malformed address or position

-32603

Internal error - node processing issues

SDK Integration

Ethers.js

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

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

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

Viem

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

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

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

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