create-mint.ts

import "dotenv/config";
import { Keypair } from "@solana/web3.js";
import { createRpc } from "@lightprotocol/stateless.js";
import {
    createMintInterface,
    createTokenMetadata,
} from "@lightprotocol/compressed-token";
import { homedir } from "os";
import { readFileSync } from "fs";

// devnet:
// const RPC_URL = `https://devnet.helius-rpc.com?api-key=${process.env.API_KEY!}`;
// const rpc = createRpc(RPC_URL);
// localnet:
const rpc = createRpc();

const payer = Keypair.fromSecretKey(
    new Uint8Array(
        JSON.parse(readFileSync(`${homedir()}/.config/solana/id.json`, "utf8"))
    )
);

(async function () {
    const { mint, transactionSignature } = await createMintInterface(
        rpc,
        payer,
        payer,
        null,
        9,
        undefined, // keypair
        undefined, // confirmOptions (default)
        undefined, // programId (CTOKEN_PROGRAM_ID)
        createTokenMetadata(
            "Example Token",
            "EXT",
            "https://example.com/metadata.json"
        )
    );

    console.log("Mint:", mint.toBase58());
    console.log("Tx:", transactionSignature);
})();