[Solana] Get compute units spent for tx

computeunits.js

const solanaWeb3 = require("@solana/web3.js");

async function getComputeUnits(txId, clusterName) {
  // Use a public RPC endpoint
  const connection = new solanaWeb3.Connection(
    solanaWeb3.clusterApiUrl(clusterName),
    "confirmed",
  );

  try {
    // Fetch transaction details
    const tx = await connection.getTransaction(txId);
    if (tx && tx.meta) {
      console.log(`Compute Units Consumed: ${tx.meta.computeUnitsConsumed}`);
      return tx.meta.computeUnitsConsumed;
    } else {
      console.log("Transaction not found or does not have metadata.");
    }
  } catch (error) {
    console.error("Error fetching transaction:", error);
  }
  
  return -1;
}

// Example
getComputeUnits("5iqyDvPgio8pzQygC7v7Ho8L1tD8AfoBaKfBwqxENox4rEV1Mq8RPSFRAqBN6upG1UuhbQTDKzvJ4r88hkak2gQR", "mainnet-beta");