Implement Consensus Release Smart Contract and Tests #20
Description
Implement Consensus Release Smart Contract and Tests in Rust Soroban for Marketplace
Description:
It is needed to implement a Consensus Release smart contract using Rust and the Soroban SDK for a Stellar-based marketplace. This contract is designed to handle scenarios where funds in escrow are only released after consensus is reached between multiple parties (e.g., buyer, seller, and an arbitrator). The goal is to provide a secure and transparent mechanism to ensure funds are only released when all participants agree, enabling trust in transactions that require mutual confirmation.
Objectives:
- Multi-Party Consensus: Ensure funds are released from escrow only when all required parties provide their explicit agreement.
- Secure Escrow Management: Manage funds in escrow securely until consensus is achieved.
- Dispute Handling: Provide mechanisms for handling disagreements, including potential arbitration or time-based fallback logic.
- Event Logging: Record every action (e.g., agreement submission, release of funds) to provide transparency.
- Thorough Testing: Validate all possible workflows, including happy path scenarios, disagreements, and edge cases.
Features to Implement:
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Contract Initialization:
- Set up the transaction with details such as buyer, seller, amount, and any third-party arbitrator (if applicable).
- Define the rules for consensus, such as required signatures and deadlines for agreement.
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Secure Escrow Management:
- Safely store buyer's funds in escrow upon transaction initiation.
- Prevent unauthorized or premature release of funds.
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Consensus Agreement Mechanism:
- Enable all involved parties to submit their agreement to release funds.
- Ensure that a majority or unanimous decision (as defined by the rules) triggers the release of funds.
- Support rejections from any party, which would halt the release process.
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Fallback Logic (Optional):
- Implement a fallback mechanism where, if consensus is not reached within a defined timeframe, funds can be returned to the buyer or held for arbitration.
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Fund Release:
- Transfer funds to the seller once consensus is achieved.
- Ensure that only one release action is allowed per transaction.
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Event Logging:
- Emit events for every agreement or rejection submitted, as well as the final release of funds.
- Include details like timestamps, involved parties, and transaction identifiers.
Tasks:
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Smart Contract Development:
- Implement the Consensus Release smart contract in Rust using the Soroban SDK.
- Include logic for multi-party agreement, secure escrow, fallback handling, and event logging.
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Unit Testing:
- Test scenarios where all parties agree and funds are successfully released to the seller.
- Test scenarios where one or more parties reject the release, ensuring funds are not released.
- Validate fallback behavior for cases where consensus is not reached within the specified timeframe.
- Test edge cases such as duplicate agreements, invalid submissions, and unauthorized actions.
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Documentation:
- Provide clear instructions on setting up and using the contract, including configuration options for consensus rules and fallback logic.
- Include example workflows for common use cases.
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Code Review & Integration:
- Perform code reviews to ensure correctness, security, and adherence to best practices.
- Integrate and test the contract within the marketplace application.
Acceptance Criteria:
- The smart contract compiles successfully and adheres to Rust Soroban SDK standards.
- All functionalities (escrow management, consensus logic, fallback handling, fund release, and event logging) are implemented and thoroughly tested.
- Unit tests cover all standard workflows and edge cases with a complete pass rate.
- Documentation is complete, providing examples and clear usage instructions.
- The implementation is reviewed and approved before merging into the main branch.