NFT Mint Program

A Solana smart contract built with Anchor for minting NFTs with a capped collection size of 444. This program integrates Metaplex Token Metadata for standardized NFT creation.

Features

• Capped Collection: Limits the total number of NFTs minted to 444.
• Metaplex Metadata: Utilizes Metaplex's Token Metadata standard for NFT attributes.
• Mint Tracking: Uses a counter account to track the number of NFTs minted.
• Cross-Program Invocation (CPI): Creates metadata accounts via CPI with Metaplex's Token Metadata program.

Requirements

• Solana CLI: Install from Solana Docs.
• Rust: Install from Rust-Lang.
• Anchor 0.30.1: Install with cargo install --git https://github.com/coral-xyz/anchor anchor-cli --locked --force.
• Node.js: Recommended version 16.x or higher.
• Metaplex Token Metadata v5.1.0: Included via Cargo.toml dependency.

Installation

1. Clone the Repository:

git clone https://github.com/your-repo/nft-mint-program.git
cd nft-mint-program

2. Install Dependencies:

npm install

3. Build the Program:

anchor build

Usage

Key Accounts

• mint_counter: PDA (Program Derived Address) tracking the total minted NFTs (max 444).
• mint: The NFT mint account (SPL Token).
• metadata: Metaplex metadata account storing NFT attributes (name, symbol, URI, etc.).
• token_account: Associated Token Account (ATA) for the payer to receive the minted NFT.
• payer: The wallet signing and funding the transaction.

Functionality

The mint_nft instruction:

1. Checks the mint_counter to enforce the 444 NFT limit.
2. Creates a metadata account via CPI with Metaplex.
3. Mints 1 token to the payer's ATA.
4. Increments the mint_counter.

Security Precautions

• Private Keys: Excluded via .gitignore. Never commit target/, node_modules/, or wallet keypairs.
• Audits: Review code and dependencies before deployment.
• Environment: Use a secure wallet and avoid exposing sensitive data in client-side code.

Information

Cargo.toml Configuration

To avoid compilation errors with Anchor and Anchor-SPL IDLs, update Cargo.toml with:

idl-build = ["anchor-lang/idl-build", "anchor-spl/idl-build"]

This ensures the IDL is built correctly for both Anchor and Anchor-SPL dependencies.

Disclaimer

This code is for educational purposes. Audit and test thoroughly before deploying to mainnet.