Step 6: Implement the UI for Your NFT Minter in App.tsx with Updated Code

To implement the UI for your NFT minter application in App.tsx with detailed functionalities such as wallet connection, input fields for NFT attributes, and minting actions, follow the provided code and instructions closely. This comprehensive setup will enable users to mint NFTs on the Eclipse Devnet directly from the UI.

Updated App.tsx Implementation

Replace the existing content of your App.tsx file with the following code snippet or your own code:

import { WalletAdapterNetwork } from '@solana/wallet-adapter-base';
import { ConnectionProvider, WalletProvider, useWallet } from '@solana/wallet-adapter-react';
import { WalletModalProvider, WalletMultiButton } from '@solana/wallet-adapter-react-ui';
import { SalmonWalletAdapter } from '@solana/wallet-adapter-wallets';
import { Connection, PublicKey, SystemProgram } from '@solana/web3.js';
import { FC, ReactNode, useMemo, useCallback, useState } from 'react';
import { Program, AnchorProvider, web3, utils } from '@project-serum/anchor';
import logo from './eclipselogo.jpg';

import idl from './nftminter.json';

const App: FC = () => {
    return (
            <Content />
export default App;

const Context: FC<{ children: ReactNode }> = ({ children }) => {
    const customClusterEndpoint = "";
    const endpoint = customClusterEndpoint;
    const wallets = useMemo(() => [new SalmonWalletAdapter()], []);

    return (
        <ConnectionProvider endpoint={endpoint}>
            <WalletProvider wallets={wallets} autoConnect>

const Content: FC = () => {
    const wallet = useWallet();
    const [nftName, setNftName] = useState('');
    const [nftDescription, setNftDescription] = useState('');
    const [nftImageUrl, setNftImageUrl] = useState('');

    const anchorWallet = useMemo(() => {
        if (!wallet.publicKey || !wallet.signTransaction || !wallet.signAllTransactions) return null;
        return {
            publicKey: wallet.publicKey,
            signTransaction: wallet.signTransaction.bind(wallet),
            signAllTransactions: wallet.signAllTransactions.bind(wallet),
    }, [wallet]);

    const onMintNFT = useCallback(async () => {
        if (!anchorWallet) return;
        const connection = new Connection("", 'confirmed');
        const provider = new AnchorProvider(connection, anchorWallet, AnchorProvider.defaultOptions());
        const programId = new PublicKey('28yv9AxVwUtw1HtDYin7JS3F3x1Z2G9cqAdowUb3iCs6');
        const program = new Program(idl, programId, provider);

        try {
            const [nftInfo] = await PublicKey.findProgramAddressSync(
                [utils.bytes.utf8.encode("nft_info"), anchorWallet.publicKey.toBuffer()],

            await program.methods.mintNft(nftName, nftDescription, nftImageUrl).rpc();
            alert("NFT minted successfully");
        } catch (error) {
            console.error("Error minting NFT:", error);
            alert("Error minting NFT: " + error.message);
    }, [anchorWallet, nftName, nftDescription, nftImageUrl]);

    return (
        <div className="App">
            <header className="title-header">
                Eclipse Devnet NFT Minter
            <img src={logo} alt="Logo" className="logo" />
            <WalletMultiButton className="WalletMultiButton" />
                <input type="text" placeholder="NFT Name" value={nftName} onChange={(e) => setNftName(} />
                <input type="text" placeholder="NFT Description" value={nftDescription} onChange={(e) => setNftDescription(} />
                <input type="text" placeholder="NFT Image URL" value={nftImageUrl} onChange={(e) => setNftImageUrl(} />
                <button onClick={onMintNFT} disabled={!wallet.connected || !nftName || !nftDescription || !nftImageUrl}>
                    Mint NFT

Replace the existing content of your App.css file with the following code snippet or your own code:

/* App.css */
.App {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100vh;
  background-color: #f0f2f5;
  font-family: 'Arial', sans-serif;

.App img.logo {
  width: 150px;
  margin-bottom: 20px;
  transition: transform 0.2s;

.App img.logo:hover {
  transform: scale(1.05);

input[type="text"], button, .WalletMultiButton {
  width: 50%;
  padding: 15px 20px;
  margin: 0 auto;
  box-sizing: border-box;
  border-radius: 8px;
  border: 1px solid #ccc;
  transition: all 0.3s ease-in-out;

input[type="text"]:focus, button:focus, .WalletMultiButton:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0,123,255,.25);

input[type="text"] {
  background-color: #ffffff;
  font-size: 16px;

button, .WalletMultiButton {
  background-color: #4CAF50;
  color: white;
  font-size: 16px;
  cursor: pointer;
  border: none;

button:hover, .WalletMultiButton:hover {
  background-color: #45a049;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);

div {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;

  background-color: #cccccc;
  color: #666666;

.title-header {
  width: 100%;
  padding: 20px;
  background-color: #282c34;
  color: white;
  text-align: center;
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 30px; /* Added bottom margin for spacing */

Instructions for Use:

  1. Ensure Correct File Paths: Verify that the path to your nftminter.json (the IDL file) matches its location within your project.

  2. Update Program ID: Replace '28yv9AxVwUtw1HtDYin7JS3F3x1Z2G9cqAdowUb3iCs6' with the public key of your deployed smart contract on the Eclipse blockchain's devnet.

  3. Test Functionality: After integrating this code, start your development server and test the wallet connection, input fields, and the minting button. Ensure that the minting process correctly interacts with your smart contract.

  4. Handle Wallet Connection: The UI provides a wallet connection button (WalletMultiButton) that allows users to connect their Solana wallets before minting NFTs.

  5. Minting Process: The onMintNFT function handles the logic for minting an NFT with the specified name, description, and image URL. It constructs and sends a transaction to your smart contract on the blockchain.

This step significantly enhances your NFT minter application by incorporating a user interface for minting NFTs, complete with wallet integration and smart contract interaction, providing a seamless user experience.

Feel free to edit the code snippets and add more functionality. Remember you can always upgrade your smart contract program & corresponding IDL file using Anchor, and update the UI as required in your React App front-end.

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