sui_getCheckpoint - Sui

Example code for the sui_getCheckpoint JSON-RPC method. Complete guide on how to use sui_getCheckpoint JSON-RPC in GetBlock Web3 documentation.

This method returns checkpoint information for a specified checkpoint ID or sequence number. Checkpoints are certified snapshots of blockchain state fundamental to SUI's consensus mechanism.

Parameters

Parameter

Type

Required

Description

Default/Supported Values

string

Yes

Checkpoint digest or sequence number

Valid checkpoint identifier

Request Example

curl

curl --location --request POST https://go.getblock.io/<ACCESS-TOKEN>/ \
--header 'Content-Type: application/json' \
--data-raw '{
  "jsonrpc": "2.0",
  "method": "sui_getCheckpoint",
  "params": ["1000"],
  "id": "getblock.io"
}'

example.py

import requests
url = "https://go.getblock.io/<ACCESS-TOKEN>/"
payload = {"jsonrpc": "2.0", "method": "sui_getCheckpoint", "params": ["1000"], "id": "getblock.io"}
response = requests.post(url, headers={"Content-Type": "application/json"}, json=payload)
print("Result:", response.json().get("result"))

example.js

const axios = require('axios');
axios.post("https://go.getblock.io/<ACCESS-TOKEN>/", {
  jsonrpc: "2.0", method: "sui_getCheckpoint", params: ["1000"], id: "getblock.io"
}).then(r => console.log("Result:", r.data.result));

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", "id": "getblock.io", "method": "sui_getCheckpoint", "params": ["1000"]});
    let response = client.post("https://go.getblock.io/<ACCESS-TOKEN>/").json(&payload).send().await?;
    println!("Response: {:?}", response.text().await?);
    Ok(())
}

Response

response.json

{
  "jsonrpc": "2.0",
  "id": "getblock.io",
  "result": {
    "epoch": "5000",
    "sequenceNumber": "1000",
    "digest": "G6Dtzr1ZSfHFhotGsTE3cLENa7L1ooe1BBvknAUsARbV",
    "networkTotalTransactions": "792385",
    "previousDigest": "6tBy8RXZKrdrB4XkMQn7J3MNG4fQCo9XcRduFFvYrL5Z",
    "timestampMs": "1676911928",
    "transactions": ["mN8YNBgVR3wB7vfXmjVgDRF4oqxVRRjzmJ6U4mzbq77"],
    "validatorSignature": "wAAA..."
  }
}

Reponse Parameters

Parameter

Type

Description

result.epoch

string

Epoch number

result.sequenceNumber

string

Checkpoint sequence number

result.digest

string

Checkpoint digest

result.networkTotalTransactions

string

Cumulative transaction count

result.timestampMs

string

Checkpoint timestamp

result.transactions

array

Transaction digests

Use Cases

Block Explorer: Display checkpoint details and included transactions.
Finality Verification: Confirm transactions are finalized in checkpoints.
Network Sync: Track and verify blockchain state synchronization.

Common Errors

Error

Description

Solution

NotFound

Checkpoint does not exist

Verify checkpoint ID

SDK Integration

TypeScript (Sui SDK)

import { SuiClient } from '@mysten/sui/client';
const client = new SuiClient({ url: 'https://go.getblock.io/<ACCESS-TOKEN>/' });
const checkpoint = await client.getCheckpoint({ id: '1000' });
console.log(checkpoint);

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SDK Integration