Implement Transaction Tracking & History

[grantfox-oss]

Description:
Track all portfolio transactions (buy, sell, transfer, dividend) with comprehensive history and audit trail. Support filtering and export.

Acceptance Criteria:

• Record all transaction types: buy, sell, transfer, dividend, stake, unstake
• Transaction metadata: date, quantity, price, fees, chain, gas fees
• Transaction history retrieval with filtering
• Export transactions in CSV format
• Calculate cost basis from transaction history
• Immutable transaction records (no deletion, only archival)
• Transaction validation (quantity match, balance checks)

Definition of Done:

• Transactions recorded for all portfolio changes
• History accessible and queryable
• CSV export working correctly
• Unit tests > 85% coverage

Test Requirements:

• Unit tests for transaction recording
• Integration tests with portfolio operations
• CSV export validation test

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[Brace101]

Hello, I’m a full stack developer with hands-on experience building with variety of tools including Nextjs, nodejs, nestjs, React, Typescript and more

I focus on writing clear, maintainable code and making sure features work as expected end to end, not just in isolation. I communicate progress regularly and keep things transparent as I work. I’m confident I can complete this task within an ETA of 4 HOURS

[dorisadams]

I would love to work on this issue, please assign the issues to me so i Can work on it ASAP

[ustaxs]

Hello Maintainer

Please can you assign me this ?

[grantfox-oss]

🦊 GrantFox — @ustaxs has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #34)
2. Your PR will be reviewed by the SourceXXL maintainers

Good luck! Track your progress on GrantFox.