Asset Tokenization Smart Contract Implementation#1
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abolore-install wants to merge 14 commits intomainfrom
Open
Asset Tokenization Smart Contract Implementation#1abolore-install wants to merge 14 commits intomainfrom
abolore-install wants to merge 14 commits intomainfrom
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…ngs, and compliance status - Define `assets` map to store asset details including owner, type, metadata URI, total supply, and frozen status. - Define `token-balances` map to track balances of tokens for each asset and owner. - Define `marketplace-listings` map to manage asset listings with price, quantity, and expiry details. - Define `compliance-status` map to record compliance approval status and timestamp for each asset and user.
…ce check, and balance retrieval - Implement `is-contract-owner` to verify if the transaction sender is the contract owner. - Implement `asset-exists` to check if an asset with a given ID exists in the `assets` map. - Implement `get-balance` to retrieve the token balance for a specific asset and user from the `token-balances` map.
- Implement `transfer-tokens` to handle the transfer of tokens from one user to another. - Check if the sender has sufficient balance before transferring. - Update the `token-balances` map for both the sender and the recipient. - Return an error if the sender's balance is insufficient.
- Implement `register-asset` to allow the contract owner to register a new asset. - Generate a new asset ID by incrementing the total assets count. - Store the asset details in the `assets` map and initialize the token balance for the contract owner. - Update the total assets count. - Return the new asset ID if the registration is successful, otherwise return an authorization error.
- Implement `mint-tokens` to allow the asset owner to mint new tokens for a specified recipient. - Check if the asset exists and if the sender is the asset owner. - Ensure the asset is not frozen before minting. - Update the total supply of the asset and the recipient's token balance. - Return success if the minting is successful, otherwise return an authorization error.
- Implement `transfer` to allow users to transfer tokens to another user if the asset is not frozen. - Implement `list-asset` to enable users to list their assets for sale on the marketplace. - Ensure the asset exists and is not frozen before transferring tokens. - Check if the seller has sufficient balance, the price is greater than zero, and the expiry is valid before listing the asset. - Return appropriate errors if conditions are not met.
- Implement `buy-asset` to allow users to purchase listed assets from the marketplace. - Check if the listing exists and if the quantity and expiry are valid. - Transfer STX payment from the buyer to the seller. - Transfer the specified quantity of tokens from the seller to the buyer. - Update or delete the listing based on the remaining quantity. - Return appropriate errors if conditions are not met.
…pproval - Implement `set-compliance-authority` to allow the contract owner to set a new compliance authority. - Implement `approve-user` to allow the compliance authority to approve users for specific assets. - Ensure only the contract owner can set the compliance authority. - Ensure only the compliance authority can approve users. - Return appropriate errors if conditions are not met
…, marketplace listings, and user approval status - Implement `get-asset-info` to retrieve details of a specific asset. - Implement `get-user-balance` to get the token balance of a user for a specific asset. - Implement `get-listing` to fetch marketplace listing details for a specific asset and seller. - Implement `is-user-approved` to check if a user is approved for a specific asset.
- Implement validation functions to ensure asset IDs, amounts, strings, and expiries are valid. - Enhance error handling in public functions to use validation functions and provide more specific error messages. - Ensure asset operations such as registration, minting, transferring, and listing are robust and secure.
…rity in asset transactions
… error handling in asset operations - Improve `validate-recipient` to ensure the recipient is not the contract itself and the asset exists. - Enhance `validate-principal` to ensure the principal is not the contract itself or the contract owner. - Update public functions to use enhanced validation functions for better error handling. - Ensure robust and secure asset operations by validating inputs and providing specific error messages.
…curity Policy documents - Create a `CODE_OF_CONDUCT.md` to outline expected behavior and reporting guidelines. - Update `CONTRIBUTING.md` with detailed contributing guidelines, including testing, documentation, pull request process, and code review process. - Add a `LICENSE` file to specify the project's licensing terms. - Update `README.md` to provide an overview of the project, installation instructions, usage examples, and contribution guidelines. - Create a `SECURITY.md` to outline the security policy, including how to report vulnerabilities and security best practices.
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Overview
This PR implements a comprehensive asset tokenization smart contract with marketplace functionality and compliance controls.
Key Features
Changes
Core Contract Implementation
Added data maps for asset management:
assets: Stores asset details (owner, type, metadata, supply)token-balances: Tracks token ownershipmarketplace-listings: Manages asset listingscompliance-status: Records user compliance statusImplemented private utility functions:
Added public functions for:
Validation and Security
Enhanced input validation:
Improved error handling:
Documentation
Security Considerations
Deployment Instructions
Checklist