Add traceback and exception type logging to help diagnose why PoA
submission is failing silently and falling back to local blockchain.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Problem: Votes were being rejected by validators with 'Invalid data format'
error because the transaction data wasn't in the correct format.
Root cause: The validator's eth_sendTransaction endpoint expects the 'data'
field to be:
1. A hex string prefixed with '0x'
2. The hex-encoded JSON of a Transaction object containing:
- voter_id
- election_id
- encrypted_vote
- ballot_hash
- timestamp
Solution:
- Update BlockchainClient.submit_vote() to properly encode transaction data
as JSON, then hex-encode it with 0x prefix
- Add ballot_hash parameter to submit_vote() method
- Update both call sites in votes.py to pass ballot_hash
- Generate ballot_hash if not provided for safety
This ensures votes are now properly formatted and accepted by validators,
allowing them to be submitted to the blockchain instead of falling back to
local blockchain.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
The POST /api/votes endpoint (used by frontend) was recording votes
in the database but NOT submitting them to the PoA blockchain. This
caused votes to appear in database but not on the blockchain.
Changes:
- Add vote submission to PoA validators in the simple endpoint
- Add fallback to local blockchain if PoA validators unreachable
- Include blockchain status in API response
- Use ballot hash as vote data for blockchain submission
This ensures votes are now submitted to the PoA blockchain when the
frontend votes, and users can see their votes on the blockchain.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Restores all missing project files and fixes:
- Restored backend/blockchain.py with full blockchain implementation
- Restored backend/routes/votes.py with all API endpoints
- Restored frontend/components/voting-interface.tsx voting UI
- Fixed backend/crypto/hashing.py to handle both str and bytes
- Fixed pyproject.toml for Poetry compatibility
- All cryptographic modules tested and working
- ElGamal encryption, ZK proofs, digital signatures functional
- Blockchain integrity verification working
- Homomorphic vote counting implemented and tested
Phase 2 Backend API: ✓ COMPLETE
Phase 3 Frontend Interface: ✓ COMPLETE
Verification:
✓ Frontend builds successfully (12 routes)
✓ Backend crypto modules all import correctly
✓ Full voting simulation works end-to-end
✓ Blockchain records and verifies votes
✓ Homomorphic vote counting functional
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
- Added HistoriquePage component to display user's voting history with detailed statistics and vote cards.
- Created UpcomingVotesPage component to show upcoming elections with a similar layout.
- Developed CSS styles for both pages to enhance visual appeal and responsiveness.
- Integrated API calls to fetch user's votes and upcoming elections.
- Added a rebuild script for Docker environment setup and data restoration.
- Created a Python script to populate the database with sample data for testing.
