import {
  createKeyPairSignerFromBytes,
  createSolanaRpc,
  createSolanaRpcSubscriptions,
  devnet,
  airdropFactory,
  lamports,
} from "@solana/kit";

import wallet from "./mykeypair.json";
const LAMPORTS_PER_SOL = BigInt(1_000_000_000);

// We're going to import our keypair from the wallet file
const keypair = await createKeyPairSignerFromBytes(new Uint8Array(wallet));
console.log(`Your Solana wallet address: ${keypair.address}`);

// Create an rpc connection
const rpc = createSolanaRpc(devnet("<https://api.devnet.solana.com>"));
const rpcSubscriptions = createSolanaRpcSubscriptions(
  devnet("ws://api.devnet.solana.com")
);

// Using the convenient airdropFactory from solana kit
const airdrop = airdropFactory({ rpc, rpcSubscriptions });
try {
  const sig = await airdrop({
    commitment: "confirmed",
    recipientAddress: keypair.address,
    lamports: lamports(2n * LAMPORTS_PER_SOL),
  });
  console.log(`Success! Check out your TX here:
<https://explorer.solana.com/tx/${sig}?cluster=devnet`>);
} catch (error) {
  console.error(`Oops, something went wrong: ${error}`);
}

Output :

Transaction Signature

<https://explorer.solana.com/tx/49jTm78Ycc4wfJr9EAjunbwa2dXjS9tTSY8ShKLVL2SGKshSvTVWVE7QHsC1eBTGshfdFvi3emCELBmR54y1JPVn?cluster=devnet>