solana-program-examples/compression/cnft-burn/tests/createAndMint.ts

/**
  Overall flow of this script
  - load or create two keypairs (named `payer` and `testWallet`)
  - create a new tree with enough space to mint all the nft's you want for the "collection"
  - create a new NFT Collection on chain (using the usual Metaplex methods)
  - mint a single compressed nft into the tree to the `payer`
  - mint a single compressed nft into the tree to the `testWallet`
  - display the overall cost to perform all these actions

  ---
  NOTE: this script is identical to the `scripts/verboseCreateAndMint.ts` file, except THIS file has
  less console logging and explanation of what is occurring
*/

import { Keypair, LAMPORTS_PER_SOL, clusterApiUrl } from "@solana/web3.js";
import {
  MetadataArgs,
  TokenProgramVersion,
  TokenStandard,
} from "@metaplex-foundation/mpl-bubblegum";
// import custom helpers to mint compressed NFTs
import {
  createCollection,
  createTree,
  mintCompressedNFT,
} from "./utils/compression";
// import custom helpers for demos
import { loadKeypairFromFile, numberFormatter } from "./utils/helpers";

import { CreateMetadataAccountArgsV3 } from "@metaplex-foundation/mpl-token-metadata";
import { ValidDepthSizePair } from "@solana/spl-account-compression";
// local import of the connection wrapper, to help with using the ReadApi
import { WrapperConnection } from "./ReadApi/WrapperConnection";
import { RPC_PATH } from "./cnft-burn";

// define some reusable balance values for tracking
let initBalance: number, balance: number;

export async function createAndMint() {
  //////////////////////////////////////////////////////////////////////////////
  //////////////////////////////////////////////////////////////////////////////

  // generate a new keypair for use in this demo (or load it locally from the filesystem when available)
  const payer = loadKeypairFromFile("/Users/pratik/.config/solana/id.json");

  console.log("Payer address:", payer.publicKey.toBase58());

  //////////////////////////////////////////////////////////////////////////////
  //////////////////////////////////////////////////////////////////////////////

  // load the env variables and store the cluster RPC url
  const CLUSTER_URL = RPC_PATH;

  // create a new rpc connection, using the ReadApi wrapper
  const connection = new WrapperConnection(CLUSTER_URL, "confirmed");

  // get the payer's starting balance (only used for demonstration purposes)
  initBalance = await connection.getBalance(payer.publicKey);

  //////////////////////////////////////////////////////////////////////////////
  //////////////////////////////////////////////////////////////////////////////

  /*
    Define our tree size parameters
  */
  const maxDepthSizePair: ValidDepthSizePair = {
    // max=16,384 nodes
    maxDepth: 14,
    maxBufferSize: 64,
  };
  const canopyDepth = maxDepthSizePair.maxDepth - 5;

  /*
    Actually allocate the tree on chain
  */

  // define the address the tree will live at
  const treeKeypair = Keypair.generate();

  // create and send the transaction to create the tree on chain
  const tree = await createTree(
    connection,
    payer,
    treeKeypair,
    maxDepthSizePair,
    canopyDepth
  );

  /*
    Create the actual NFT collection (using the normal Metaplex method)
    (nothing special about compression here)
  */

  // define the metadata to be used for creating the NFT collection
  const collectionMetadataV3: CreateMetadataAccountArgsV3 = {
    data: {
      name: "Test Burn",
      symbol: "TB",
      // specific json metadata for the collection
      uri: "https://supersweetcollection.notarealurl/collection.json",
      sellerFeeBasisPoints: 100,
      creators: [
        {
          address: payer.publicKey,
          verified: false,
          share: 100,
        },
      ],
      collection: null,
      uses: null,
    },
    isMutable: false,
    collectionDetails: null,
  };

  // create a full token mint and initialize the collection (with the `payer` as the authority)
  const collection = await createCollection(
    connection,
    payer,
    collectionMetadataV3
  );

  /*
    Mint a single compressed NFT
  */

  const compressedNFTMetadata: MetadataArgs = {
    name: "Pratik test",
    symbol: collectionMetadataV3.data.symbol,
    // specific json metadata for each NFT
    uri: "https://bafkreies5r7b5eszpq5dgnw2brhjtlw7xtdtmsmoniebqehf37nv5rxajy.ipfs.nftstorage.link/",
    creators: [
      {
        address: payer.publicKey,
        verified: false,
        share: 100,
      },
    ],
    editionNonce: 0,
    uses: null,
    collection: null,
    primarySaleHappened: false,
    sellerFeeBasisPoints: 0,
    isMutable: false,
    // these values are taken from the Bubblegum package
    tokenProgramVersion: TokenProgramVersion.Original,
    tokenStandard: TokenStandard.NonFungible,
  };

  // fully mint a single compressed NFT to the payer
  console.log(
    `Minting a single compressed NFT to ${payer.publicKey.toBase58()}...`
  );

  await mintCompressedNFT(
    connection,
    payer,
    treeKeypair.publicKey,
    collection.mint,
    collection.metadataAccount,
    collection.masterEditionAccount,
    compressedNFTMetadata,
    // mint to this specific wallet (in this case, the tree owner aka `payer`)
    payer.publicKey
  );

  //////////////////////////////////////////////////////////////////////////////
  //////////////////////////////////////////////////////////////////////////////

  // fetch the payer's final balance
  balance = await connection.getBalance(payer.publicKey);

  console.log(`===============================`);
  console.log(
    "Total cost:",
    numberFormatter((initBalance - balance) / LAMPORTS_PER_SOL, true),
    "SOL\n"
  );

  return { tree, collection };
}