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

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

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

1
require "uri"
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require "json"
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require "net/http"
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url = URI("https://docs-demo.solana-mainnet.quiknode.pro/")
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https = Net::HTTP.new(url.host, url.port)
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https.use_ssl = true
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request = Net::HTTP::Post.new(url)
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request["Content-Type"] = "application/json"
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request.body = JSON.dump({
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  "jsonrpc": "2.0",
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  "id": 1,
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  "method": "getLatestBlockhash",
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  "params": [
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    {
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      "commitment": "processed"
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    }
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  ]
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})
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response = https.request(request)
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puts response.read_body
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1
require "uri"
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require "json"
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require "net/http"
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url = URI("https://docs-demo.solana-mainnet.quiknode.pro/")
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https = Net::HTTP.new(url.host, url.port)
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https.use_ssl = true
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request = Net::HTTP::Post.new(url)
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request["Content-Type"] = "application/json"
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request.body = JSON.dump({
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  "jsonrpc": "2.0",
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  "id": 1,
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  "method": "getLatestBlockhash",
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  "params": [
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    {
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      "commitment": "processed"
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    }
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  ]
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})
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response = https.request(request)
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puts response.read_body
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1
import { createSolanaRpc } from "@solana/kit";
2

3
(async () => {
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  const solanaRpc = createSolanaRpc("https://docs-demo.solana-mainnet.quiknode.pro/");
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  try {
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    const latestBlockhash = await solanaRpc.getLatestBlockhash().send();
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    console.log(latestBlockhash);
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  } catch (error) {
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    console.error("Error fetching latest blockhash:", error);
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  }
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})();

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import { createSolanaRpc } from "@solana/kit";
2

3
(async () => {
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  const solanaRpc = createSolanaRpc("https://docs-demo.solana-mainnet.quiknode.pro/");
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  try {
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    const latestBlockhash = await solanaRpc.getLatestBlockhash().send();
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    console.log(latestBlockhash);
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  } catch (error) {
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    console.error("Error fetching latest blockhash:", error);
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  }
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})();

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const web3 = require("@solana/web3.js");
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(async () => {
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  const solana = new web3.Connection("https://docs-demo.solana-mainnet.quiknode.pro/");
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  console.log(await solana.getLatestBlockhash());
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})();
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1
const web3 = require("@solana/web3.js");
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(async () => {
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  const solana = new web3.Connection("https://docs-demo.solana-mainnet.quiknode.pro/");
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  console.log(await solana.getLatestBlockhash());
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})();
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1
from solana.rpc.api import Client
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solana_client = Client("https://docs-demo.solana-mainnet.quiknode.pro/")
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print(solana_client.get_latest_blockhash())

1
from solana.rpc.api import Client
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solana_client = Client("https://docs-demo.solana-mainnet.quiknode.pro/")
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print(solana_client.get_latest_blockhash())

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use reqwest::header;
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use reqwest::Client;
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use std::error::Error;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn Error>> {
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    let mut headers = header::HeaderMap::new();
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    headers.insert("Content-Type", "application/json".parse().unwrap());
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    let client = Client::new();
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    let json_data = r#"
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    {
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        "jsonrpc": "2.0",
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        "id": 1,
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        "method": "getLatestBlockhash",
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        "params": [
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            {
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                "commitment": "processed"
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            }
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        ]
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    }
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    "#;
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    let response = client
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        .post("https://docs-demo.solana-mainnet.quiknode.pro/")
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        .headers(headers)
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        .body(json_data)
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        .send()
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        .await?; 
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    let body = response.text().await?;
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    println!("{}", body);
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    Ok(())
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}

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use reqwest::header;
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use reqwest::Client;
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use std::error::Error;
4

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#[tokio::main]
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async fn main() -> Result<(), Box<dyn Error>> {
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    let mut headers = header::HeaderMap::new();
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    headers.insert("Content-Type", "application/json".parse().unwrap());
9

10
    let client = Client::new();
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    let json_data = r#"
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    {
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        "jsonrpc": "2.0",
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        "id": 1,
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        "method": "getLatestBlockhash",
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        "params": [
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            {
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                "commitment": "processed"
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            }
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        ]
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    }
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    "#;
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    let response = client
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        .post("https://docs-demo.solana-mainnet.quiknode.pro/")
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        .headers(headers)
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        .body(json_data)
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        .send()
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        .await?; 
29

30
    let body = response.text().await?;
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    println!("{}", body);
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    Ok(())
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}

Response

1
{
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  "jsonrpc": "2.0",
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  "result": {
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    "context": {
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      "slot": 2792
6
    },
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    "value": {
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      "blockhash": "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N",
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      "lastValidBlockHeight": 3090
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    }
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  },
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  "id": 1
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}

1
{
2
  "jsonrpc": "2.0",
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  "result": {
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    "context": {
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      "slot": 2792
6
    },
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    "value": {
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      "blockhash": "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N",
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      "lastValidBlockHeight": 3090
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    }
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  },
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  "id": 1
13
}

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