将资产链接到 solana 令牌

Question

I have solana non-fungible token and a asset (image).

I want to link image with token.

I also want to create smart contract but don't know what it is ?

Anyone knowns how to do this ?

Answer 1

Yes, it's super easy to do this with the Blockchain API.

See the "Create an NFT on Solana" endpoint in their docs .

Here are some examples (Python, Javascript).

Here's how to do it in Python:

pip install theblockchainapi

Then:

from theblockchainapi import TheBlockchainAPIResource, SolanaCurrencyUnit

# Get an API key pair for free here: https://dashboard.theblockchainapi.com/
MY_API_KEY_ID = None
MY_API_SECRET_KEY = None
BLOCKCHAIN_API_RESOURCE = TheBlockchainAPIResource(
    api_key_id=MY_API_KEY_ID,
    api_secret_key=MY_API_SECRET_KEY
)


def example():
    """
    This example creates a new wallet, gets an airdrop to mint an NFT, and then mints an NFT.
    """
    try:
        assert MY_API_KEY_ID is not None
        assert MY_API_SECRET_KEY is not None
    except AssertionError:
        raise Exception("Fill in your key ID pair!")

    # Create a wallet
    secret_key = BLOCKCHAIN_API_RESOURCE.generate_secret_key()
    public_key = BLOCKCHAIN_API_RESOURCE.derive_public_key(
        secret_recovery_phrase=secret_key
    )
    print(f"Public Key: {public_key}")
    print(f"Secret Key: {secret_key}")

    # Get an airdrop on the devnet in order to be able to mint an NFT
    BLOCKCHAIN_API_RESOURCE.get_airdrop(public_key)

    # We need to make sure this has time to process before minting the NFT!
    import time
    time.sleep(25)

    def get_balance():
        balance_result = BLOCKCHAIN_API_RESOURCE.get_balance(public_key, unit=SolanaCurrencyUnit.SOL)
        print(f"Balance: {balance_result['balance']}")
    get_balance()

    # Mint an NFT
    nft = BLOCKCHAIN_API_RESOURCE.create_nft(
        secret_recovery_phrase=secret_key,
        nft_name="The Blockchain API",
        nft_symbol="BLOCKX",
        nft_url="https://pbs.twimg.com/profile_images/1441903262509142018/_8mjWhho_400x400.jpg"
    )
    print("NFT: ", nft)
    print(f"You can view the NFT here: {nft['explorer_url']}")


if __name__ == '__main__':
    example()

Answer 2

I want to link image with token.

1. Upload your image to a service. Here's a good one: https://nft.storage/files/

2. Create json file ( https://docs.metaplex.com/nft-standard ). Set uri field to the image link above

3. Upload the `json file to a service ( https://docs.metaplex.com/nft-standard ).

4. Create a metadata account for your token: It's Program Derived Address (PDA) with a derived key of ['metadata', metadata_program_id, mint_id]. https://docs.metaplex.com/nft-standard

Now you can mint your token to anyone. They should be able to see that NFT in their wallet.

Here is a sample code I do to create metadata account: https://github.com/batphonghan/minter_machine/blob/dbb1e4cd82f47d5062ca14615f0511d4c8631517/minter_server_actix/src/mint_token.rs#L29

I also want to create smart contract but don't know what it is ? It's an on-chain code called program in solana. You do not need it to create a metadata account. Metaplex team has already deployed it.