NFTs have been generating a lot of buzz in the blockchain community for some time now, particularly in the digital art space. NFTs, or non-fungible tokens, are unique digital assets that may be showcased and bought/sold on the blockchain. Purchasing an NFT gives you ownership over the unique digital creation, somewhat similar to buying a distinct painting or art piece.

In this tutorial, we will go over how you may transfer your digital art to the blockchain, minting your own NFT. Transferring your NFT to the Terra blockchain allows for exposure to millions of users who utilize the Terra ecosystem worldwide.

If you would like to view available collections that are on sale on the Terra blockchain, you may navigate to randomearth marketplace.

These instructions assume that you have already set up a Terra Station wallet in order to interact with the Terra blockchain. You may create a new wallet on the Terra Station extension on Google Chrome which you will need to install in order to confirm transactions on the application.

You will also need to install LocalTerra, a Terra blockchain and test environment which runs on your personal computer, and Terrain, a Terra development environment for smart contract development. Be sure to carefully follow the instructions to install all necessary dependencies for both LocalTerra as well as Terrain and ensure that they are both running properly on your system.

After installing the above dependencies, you may clone this repository, which contains the smart contract with NFT minting functionality as well as the corresponding front end application, to the directory of your choice utilizing the following command.

git clone --depth 1 https://github.com/terran6/nft-on-terra.git

Change directory into the cloned repository and run the command npm install in your terminal to install all relevant Node dependencies. If you have not installed Node.js or npm (Node Package Manager) on your computer, you may find the download link to install the required Node.js LTS version 16 along with npm for your operating system here.

There are a few changes you will have to make before you can deploy your smart contract and create your first NFT. First, you will need to ensure that LocalTerra is active and running on a tab in your terminal throughout this tutorial. To test your smart contract functionality, you will be utilizing the preconfigured LocalTerra testing wallet test1. This wallet will be available on any Terra Station generated wallet. In order to view your test1 wallet, you may navigate to LocalTerra on your Terra Station extension on Google Chrome and switch your wallet to the preconfigured test1 wallet.

Open the Terra Station extension on your Google Chrome web browser. Click on the settings icon in the upper right-hand corner and select the localterra network.

Next, you will click on Switch wallet, then click on Preconfigured wallets... from the subsequent pop-up and finally select test1 from the drop-down list that appears.

Now that you have successfully switched to the test1 wallet on LocalTerra, you have setup your environment to be able to deploy your smart contract.

Before you may deploy your contract and begin minting your NFT, you must make a change to the config.terrain.json file in this repository. Open this file and find the instantiate message section below.

"instantiateMsg": {
  "name":"NFT Collection Name",
  "symbol":"NFTSYMBOL",
  "minter":"terraxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

You must first update the name and symbol that will correspond to your NFT collection with which your minted NFTs will be associated. Also, the minter will have to be updated to your test1 wallet address. This may be copied directly from your Terra Station extension.

In this tutorial, we will be minting an NFT of Luna, the native token of Terraform Labs, to our Cryptocurrency Token NFTs collection. Therefore, we will update the parameters in the instantiate message to the following:

"instantiateMsg": {
  "name":"Cryptocurrency Token NFTs",
  "symbol":"TOKENS",
  "minter":"terra111111111111111111111111111111111111111"
}

Now, you are finally ready to deploy your contract and run the NFT minting application. First, ensure you are running LocalTerra in a tab on your terminal. If you need to view instructions on how to get LocalTerra up and running, please refer to the LocalTerra documentation.

Once LocalTerra is up and running, run the following command in another tab of your terminal in order to deploy the contract with your test1 wallet as the owner.

terrain deploy cw721-metadata-onchain --signer test1

Once the contract deployment is successfully completed, you may change into the frontend directory. From here, you must run npm install to install all necessary Node dependencies. Finally, you may run the command npm start to start up the NFT minting application.

As shown above, you may fill out all of the necessary information on the form to mint your first NFT. ID may be any value that you would like to correspond to the ID of the new NFT. The Owner Address is the wallet address which will be the owner of the newly minted NFT (our test1 wallet address in this case). You may then enter a name for the NFT as well as input its corresponding URL. For this tutorial, we will minting an NFT of Luna, the native token of Terra, available at the following URL:

https://assets.terra.money/icon/svg/LUNA.png

_{NFT URL Note: In general, many prefer to host their NFTs on IPFS (Interplanetary File System). You may use a variety of resources in order to post an NFT on IPFS. One service that you may utilize is Pinata. In this example, I have used an image available at terra.money.}

Now, you are ready to mint your NFT! Click on the Mint NFT button which will make your Terra Station extension pop up to request confirmation of the transaction. Click on the Post button from your Terra Station extension and you will be presented with information on your newly minted NFT!

Now that you have minted your NFT, you may interact with it via the NFT webpage on the Terra Station website. If your wallet is not already connected, make sure to click on the Connect button in the upper right-hand corner of the screen and select your Terra Station Wallet.

Next, click on Add tokens > and you will be presented with a pop-up box with a search bar. In this search bar, you will be pasting in your contract address. This can be found in this repository in the refs.terrain.json file next to the default key.

{
  "localterra": {
    "cw721-metadata-onchain": {
      "codeId": "1",
      "contractAddresses": {
        "default": "terra222222222222222222222222222222222222222"
      }
    }
  }
}

Copy this address, paste it into the search bar and click on the + button located next to the name of your NFT collection.

Now, you may close out this window and you will be presented with information on your NFT collection.

As shown in the image above, we have our NFT presented in our Cryptocurrency Token NFTs collection. From here, we may View relevant information about our NFT as well as Send our NFT to any specified wallet address. You may utilize the application to mint even more NFTs for your collection as desired and interact with them on this webpage.

You have now minted your first NFT on the Terra blockchain! If you have your own unique digital creation that you would like to share with the world and are comfortable with the steps to mint an NFT on Terra, you may follow these instructions utilizing the mainnet network on your personal Terra Station wallet.

_{NOTE: LocalTerra is not needed for deployments on mainnet and is only utilized for local testing and development purposes.}