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getLatestBlockhash RPC Method

The API credit value for this method is 1 . To learn more about API credits and each method's value, visit the API Credits page.

The getLatestBlockhash method is only available in solana-core v1.9 or newer. Please use getRecentBlockhash for solana-core v1.8

Parameters:

  1. object - (optional) The configuration object with the following fields:

    Commitment - string - (optional) The level of commitment required for the query. The options include:

    Finalized - string - The node will query the most recent block confirmed by the supermajority of the cluster as having reached maximum lockout, meaning the cluster has recognized this block as finalized

    Confirmed - string - The node will query the most recent block that has been voted on by the supermajority of the cluster

    Processed - string - The node will query its most recent block. Note that the block may not be complete

    minContextSlot - integer - (optional) The minimum slot at which the request can be evaluated

Returns:

  1. result - The RpcResponse JSON object with the following fields:

    context - The information about the current state of the program

    apiVersion - The version of the Solana RPC API to use

    slot - An integer representing the slot for which to retrieve the fee calculator

    value - A JSON object with the following fields:

    blockhash - The block hash encoded as base-58 string

    lastValidBlockHeight - The last block height at which the blockhash will be valid

Code Examples:

const web3 = require("@solana/web3.js");
(async () => {
  const solana = new web3.Connection("http://sample-endpoint-name.network.quiknode.pro/token-goes-here/");
  console.log(await solana.getLatestBlockhash());
})();
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