getLatestBlockhash

All the specifications for getLatestBlockhash RPC Method on Solana

Returns the latest blockhash. For older v1.8 of solana-core, please use getRecentBlockhash.

Parameters required for this RPC call

• configuration : This contains the following parameters, all are optional fields.

  • commitment: The commitment describes how finalized a block is at that point in time. processed, confirmed and finalized are supported.

  • minContextSlot: The minimum slot that the request can be evaluated at.

cURL

curl https://rpc.shyft.to?api_key=YOUR-API-KEY -s -X \
  POST -H "Content-Type: application/json" -d ' 
   {
     "jsonrpc": "2.0",
     "id": 1,
     "method": "getLatestBlockhash",
     "params": [
       {
         "commitment": "processed"
       }
     ]
   }
 '

Web3.js

import { Connection, PublicKey, clusterApiUrl } from "@solana/web3.js";

const connection = new Connection("https://rpc.shyft.to?api_key=YOUR-API-KEY", "confirmed");

let commitment: Commitment = "processed";
let latestBlockhash = await connection.getLatestBlockhash(commitment);

console.log(latestBlockhash);

Response

{
  "jsonrpc": "2.0",
  "result": {
    "context": {
      "slot": 2792
    },
    "value": {
      "blockhash": "EkSnNWid2cvwEVnVx9aBqawnmiCNiDgp3gUdkDPTKN1N", //A Hash as base-58 encoded string
      "lastValidBlockHeight": 3090 //Last block height at which the blockhash will be valid
    }
  },
  "id": 1
}