TRC-721 Token Issuance

1 Create a TRON Account

Install the Chrome extension of TronLink to get ready for your issuance. You may create a new account in three ways:

  • create a new account

  • restoring from a mnemonic phrase, private key or Keystore

  • connect to a hardware wallet

350 TRX is required in your account as the minimum.

2 TRC-721 Code Modification

You may modify the file of TRC721Token.sol to customise the name and symbol of the token. Remember to save your changes.

TRC-721 contract template: template

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3 Deploy a TRC-721 Smart Contract

Deploy with tronscan: Contract Compiler

3.1 Connect to the Wallet

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3.2 Upload Contract Codes

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3.3 Compile the Contract

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Please choose the compiler version between 0.5.14 and 0.5.5

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Click ‘Confirm’ to compile. Compilation succeeds with this:

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3.4 Deploy the Contract

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Remember to choose TRC721Token, for it is the main contract.

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Click Confirm to deploy. There will be a pop-up from TronLink, click Accept to sign.

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4 Minting an NFT Token

Log in to Tronscan with your wallet, and use the contract address to open the deployed TRC-721 contract. Here, take the TZ4NjvdqyCbWmZxXEEAb3bXhfT8f6YGxJd contract on the Nile test net as an example:

  • Choose 'Contract', 'Write Contract'
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  • Find the mintWithTokenURI method, fill in the to_address, tokenId, and the tokenURI corresponding to coral.json
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📘

Metadata URI

Refer to Uploading NFT MEtadata to BTFS Network for the generation of metadata URI.

  • Click 'send', then accept the signature. A 'true' will be displayed if the token was mint successfully
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5 Record TRC-721 Token

Record with Tronscan: Record tool

  • Select token type
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Select the TRC721 token and click Yes.

  • Enter TRC721 token information
    Enter the basic information, contract address and social media information of the token. Fields with "*" are required information.
    Please note that record must be logged in with the deployer address.
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Confirm all information required for the TRC721 token, click Submit.

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You will see a popup from Tronlink asking for your signature. Click Accept to sign the message.

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  • Token successfully recorded
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6 Mobile Wallet adds TRC-721 tokens and transfer TRC-721

  • Click the Add Assets button
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  • Click the search button
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  • Input TRC-721 contract address and click add button
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TRC721 added successfully

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  • Click TRC-721 token, for example Wendy
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  • Click Wendy 721 in List collectibles
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  • Click send for transfer TRC-721
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  • Input address for receiving and enter your password for wallet
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  • Transfer successfully
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