Create NFTs via EOA Address

Create using Agent contract

Create collection

1. Obtain SEED

Refer to Obtain SEED

2. Create

Create by calling the CreateToken in the token_adapter contract.

Please note: the contract called is on the MainChain but you can decide to create NFTs whether on the MainChain or dAppChains via the parameter issue_chain_id.

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Construct parameter
var createTokenInput = new AElf.Contracts.AgentInterface.ManagerCreateTokenInput()
{
    Symbol = "NFTSYMBOL-0",
    SeedSymbol = "SEED-1",
    Memo = "MEMO_DATA",
    TokenName = "NFT_COLLECTION_NAME",
    TotalSupply = 1,
    Decimals = 0,
    Issuer = Address.FromBase58("ISSUER_ADDRESS"),
    IsBurnable = false,
    LockWhiteList = {  },
    IssueChainId = ISSUE_CHAIN_ID,
    ExternalInfo = { }
};

// Construct transaction
var transaction = new AElf.Types.Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(AGENT_INTERFACE_CONTRACT_ADDRESS),
    MethodName = "CreateToken",
    Params = createTokenInput.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

3. Obtain ProxyAccountHash

Obtain the ProxyAccountAddress of the Issuer or owner :

Call the GetTokenInfo method in the Token contract to obtain details about the collection

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Construct parameter
var getTokenInfoParam = new GetTokenInfoInput()
{
    Symbol = "NFTSYMBOL-0"
};

// Construct transaction
var transaction = new AElf.Types.Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "GetTokenInfo",
    Params = getTokenInfoParam.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
var callResult = await Client.ExecuteRawTransactionAsync(new ExecuteRawTransactionDto()
{
    RawTransaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
});

Obtain ProxyAccountHash

Check the ProxyAccountHash corresponding to ProxyAccountAddress by calling the ProxyAccount contract

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Construct parameter
var getAddressParam = Address.FromBase58("PROXY_ACCOUNT_ADDRESS");

// Construct transaction
var transaction = new AElf.Types.Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(PROXY_ACCOUNT_CONTRACT_ADDRESS),
    MethodName = "GetProxyAccountByProxyAccountAddress",
    Params = getAddressParam.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
var callResult = await Client.ExecuteRawTransactionAsync(new ExecuteRawTransactionDto()
{
    RawTransaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
});

Create NFT item

create Item

1. Create item

Create by calling the ForwardCall method in the ProxyAccount contract on the MainChain and calling the Token contract via the ProxyAccount contract.

Please note: the issue_chain_id has been determined when the collections is created and can not be changed when creating items

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Step1: Generate the transaction parameter for calling Create in the Token contract
var createInput = new AElf.Contracts.MultiToken.CreateInput()
{
    Symbol = "NFTSYMBOL-1",
    TokenName = "NFT_TOKEN_NAME",
    TotalSupply = 1,
    Decimals = 0,
    Issuer = Address.FromBase58("ISSUER_ADDRESS"),
    IsBurnable = false,
    LockWhiteList = {  },
    IssueChainId = ISSUE_CHAIN_ID,
};

// Step2: Construct ForwardCall transaction parameter
var forwardCallParam = new AElf.Contracts.ProxyAccountContract.ForwardCallInput()
{
    ProxyAccountHash = Hash.LoadFromHex(PROXY_ACCOUNT_ADDRESS),
    ContractAddress = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "Create",
    Args = createInput.ToByteString()
};

// Step3: Construct transaction
var transaction = new AElf.Types.Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(PROXY_ACCOUNT_CONTRACT_ADDRESS),
    MethodName = "ForwardCall",
    Params = forwardCallParam.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Generate transaction ID and Sign
var transactionId = HashHelper.ComputeFrom(ByteArrayHelper.HexStringToByteArray(createRaw.RawTransaction));        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

2. Issue

Issue by calling the ForwardCall method in the ProxyAccount contract on the issue_chain_id and calling the Token contract via the ProxyAccount contract.

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Step1: Generate the transaction for calling Create in the Token contract
var issueParam = new AElf.Contracts.MultiToken.IssueInput()
{
    Symbol = "NFTSYMBOL-1",
    Amount = 1,
    To = Address.FromBase58(ISSUE_TO_ADDRESS)
};

// Step2: Construct ForwardCall parameter
var forwardCallParam = new AElf.Contracts.ProxyAccountContract.ForwardCallInput()
{
    ProxyAccountHash = Hash.LoadFromHex(PROXY_ACCOUNT_ADDRESS),
    ContractAddress = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "Issue",
    Args = issueParam.ToByteString()
};

// Step3: Construct transaction
var transaction = new AElf.Types.Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(PROXY_ACCOUNT_CONTRACT_ADDRESS),
    MethodName = "ForwardCall",
    Params = forwardCallParam.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Step4: Sign transaction
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Step5: Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

Creation process using EOA address

EOA operation --- set MainChain as issue_chain_id

EOA operation --- set dAppChain as issue_chain_id

Create by directly calling the token contract

Create collection

1. Obtain SEED

1. Acquire through trading on Symbol Market (Feature).
2. Contact aelf personnel to apply for SEED.

2. Create

Create by directly calling the Create method in the token contract.

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Construct parameter
var createInput = new AElf.Contracts.MultiToken.CreateInput()
{
    Symbol = "NFTSYMBOL-1",
    TokenName = "NFT_TOKEN_NAME",
    TotalSupply = 1,
    Decimals = 0,
    Issuer = Address.FromBase58("ISSUER_ADDRESS"),
    IsBurnable = false,
    LockWhiteList = {  },
    IssueChainId = ISSUE_CHAIN_ID,
};

// Construct transaction
var transaction = new Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "Create",
    Params = createInput.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

Create NFT item

1.Create item

Create by directly calling the Create method in the token contract.

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Create NFT parameter
var createTokenInput = new ManagerCreateTokenInput()
{
    Symbol = "NFTSYMBOL-1",
    SeedSymbol = "NFTSYMBOL-1",
    Memo = "MEMO_DATA",
    TokenName = "NFT_TOKEN_NAME",
    TotalSupply = 1,
    Decimals = 0,
    Issuer = Address.FromBase58("ISSUER_ADDRESS"),
    IsBurnable = false,
    LockWhiteList = {  },
    IssueChainId = ISSUE_CHAIN_ID,
    ExternalInfo = {  }
};

// Construct transaction
var transaction = new Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "Create",
    Params = createTokenInput.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

2. Issue

Create by directly calling the Create method in the token contract.

// Create AELF-client and obtain the current block info
var Client = new AElfClient("http://node:port");
var status = Client.GetChainStatusAsync().GetAwaiter().GetResult();
var height = status.BestChainHeight;
var blockHash = status.BestChainHash;

// Construct transaction parameter
var issueParam = new IssueInput()
{
    Symbol = "NFTSYMBOL-1",
    Amount = 1,
    To = Address.FromBase58(ISSUE_TO_ADDRESS)
};

// Construct transaction
var transaction = new Transaction()
{
    From = Address.FromBase58(YOUR_AELF_ADDRESS),
    To = Address.FromBase58(TOKEN_CONTRACT_ADDRESS),
    MethodName = "Create",
    Params = createTokenInput.ToByteString(),
    RefBlockNumber = height,
    RefBlockPrefix = ByteString.CopyFrom(Hash.LoadFromHex(blockHash).Value.Take(4).ToArray()),
};

// Sign
var transactionId = HashHelper.ComputeFrom(transaction.ToByteArray());        
var signature = CryptoHelper.SignWithPrivateKey(ByteArrayHelper.HexStringToByteArray(USER_PRIVATE_KEY), transactionId.ToByteArray());

// Send transaction
await Client.SendRawTransactionAsync(new SendRawTransactionInput()
{
    Transaction = transaction.ToByteArray().ToHex(),
    Signature = signature.ToHex(),
    ReturnTransaction = true
});

Creation process using EOA address

EOA operation --- set MainChain as issue_chain_id

EOA operation --- set dAppChain as issue_chain_id