Skip to main content

Article Contract

Overview​

The Article contract represents articles as ERC721 tokens, allowing users to mint and manage articles within the DApp. It supports metadata management and leverages the ERC4906 standard for metadata updates.

Key Features​

  • ERC721 Tokens: Each article is represented as a unique ERC721 token.
  • Metadata Management: Allows setting and updating custom fields associated with each article.
  • Access Control: Enforces permissions, allowing only authorized users to mint and modify articles.
  • Filtering and Searching: Supports searching for articles based on metadata filters.

Key Functions​

  • mint(address player, kv[] calldata args): Mints a new article token with specified metadata.
  • setData(uint256 tokenId, kv[] calldata args): Updates metadata fields of an existing article.
  • getNftData(uint256 tokenId, uint256[] memory keys): Retrieves metadata fields for a specific article.
  • grep(...): Searches for articles matching specified metadata filters.

Data Structures​

  • kv: A key-value pair structure used for article metadata.
  • nftData: Mapping storing custom metadata for each token ID and key.

Inheritance​

  • Inherits from ERC721, ERC721Enumerable, ERC721Burnable, and implements IERC4906 for metadata updates.

Interactions​

  • Interacts with the Profiles contract to verify user roles and permissions.
  • Can be used in conjunction with other contracts that reference articles.