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Author: Admin | 2025-04-28
New project and open it in your favorite code editor.Install the packages using either yarn or npm.yarnnpmyarn add @coral-xyz/anchor @solana/spl-tokenStep 2: Create a WalletTo start interacting with Solana, you'll need a wallet. If you don't already have a Solana wallet, create one using the Solana CLI. This command generates a new wallet and saves the keypair file as id.json in your current directory:solana-keygen new --no-bip39-passphrase -o ./id.jsonSave your seed phrase safely. Also, keep your public key handy, as you will need it in the following sections.Note: If you already have a Solana wallet and are aware of your JSON keypair file, you can skip this step. Just make sure to configure your project's configuration file to point to your existing wallet's JSON file. This step ensures you have the necessary credentials to interact with the Solana network to deploy and test your SPL token.Step 3: Configuring the WalletEnsure your project is linked to your wallet. To do so, modify the [provider] section in the Anchor.toml file in your project's root, as shown below.If you don't create a new wallet in the previous step since you already have a Solana wallet, replace ./id.json with the path of your JSON keypair file accordingly.Anchor.toml[toolchain][features]seeds = falseskip-lint = false[programs.localnet]my_spl_token = "7HtSCtT6cKH4iZQEWuTFrUqm8nLd4Nxb8foXKdBhEpzU"[registry]url = "https://api.apr.dev"[provider]cluster = "devnet"wallet = "./id.json"[scripts]test = "yarn run ts-mocha -p ./tsconfig.json -t 1000000 tests/**/*.ts"Confirm if your wallet is configured correctly by running the code below. It should return your wallet's public address. Keep it handy since it will be needed to get some free SOL on Devnet.solana address -k ./id.jsonStep 4: Link Your WalletLink your Solana CLI to this wallet and the devnet.To use your own QuickNode Solana Devnet endpoint, simply replace devnet with your endpoint's URL.solana config set -u devnet -k ./id.jsonDouble-check your configuration, ensuring alignment with Anchor.toml.Step 5: Airdrop SOLTo get some free SOL on devnet, use QuickNode Multi-Chain Faucet. Simply type your Solana wallet's public address and get your SOL. Also, you can use the command below.After getting free SOL, check your balance. This command returns the SOL balance on devnet since we configured devnet in Step 4.Create Your SPL Token using SolidityFor now, you set up your development environment and created your token's metadata. Now, let's focus on coding.As the SPL Token program is written in Rust, not Solidity, some library files are needed to establish the communication between the Solidity code and the SPL Token program. So, let's add some SPL Token program-related library files to the project before jumping into the SPL token code.Step 1: Create Library FilesCreate a folder, libraries, in your project directory. Then, create three library files (mpl_metadata, spl_token, and system_instruction) in the libraries folder by running the commands below.mkdir librariesecho > libraries/mpl_metadata.solecho
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