getLatestBlockhash RPC Method

Please note that this method is only available in solana-core v1.9 or newer. Please use getRecentBlockhash for solana-core v1.8

Parameters

object

object

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commitment

string

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minContextSlot

integer

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Returns

result

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context

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apiVersion

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slot

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value

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blockhash

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lastValidBlockHeight

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Request

curl https://docs-demo.solana-mainnet.quiknode.pro/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","id":1, "method":"getLatestBlockhash", "params": [{"commitment":"processed"}]}'

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.solana-mainnet.quiknode.pro/")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getLatestBlockhash",
  "params": [
    {
      "commitment": "processed"
    }
  ]
})

response = https.request(request)
puts response.read_body

import { createSolanaRpc } from "@solana/kit";

(async () => {
  const solanaRpc = createSolanaRpc("https://docs-demo.solana-mainnet.quiknode.pro/");
  
  try {
    const latestBlockhash = await solanaRpc.getLatestBlockhash().send();
    console.log(latestBlockhash);
  } catch (error) {
    console.error("Error fetching latest blockhash:", error);
  }
})();

const web3 = require("@solana/web3.js");
(async () => {
  const solana = new web3.Connection("https://docs-demo.solana-mainnet.quiknode.pro/");
  console.log(await solana.getLatestBlockhash());
})();

from solana.rpc.api import Client
solana_client = Client("https://docs-demo.solana-mainnet.quiknode.pro/")
print(solana_client.get_latest_blockhash())

use reqwest::header;
use reqwest::Client;
use std::error::Error;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let mut headers = header::HeaderMap::new();
    headers.insert("Content-Type", "application/json".parse().unwrap());

    let client = Client::new();
    let json_data = r#"
    {
        "jsonrpc": "2.0",
        "id": 1,
        "method": "getLatestBlockhash",
        "params": [
            {
                "commitment": "processed"
            }
        ]
    }
    "#;
    let response = client
        .post("https://docs-demo.solana-mainnet.quiknode.pro/")
        .headers(headers)
        .body(json_data)
        .send()
        .await?; 

    let body = response.text().await?;
    println!("{}", body);

    Ok(())
}

Response

{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "slot": 2792
    },
    "value": {
      "blockhash": "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N",
      "lastValidBlockHeight": 3090
    }
  },
  "id": 1
}

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