Blockchain Synchronization Service Setup

[Mkalbani]

Location: microservices/blockchain-sync-service
Labels: microservice, stellar, blockchain, NESTJS
Estimated Time: 8 hours
Difficulty: Hard

Description

Create a blockchain sync service monitoring Stellar network for transactions, smart contract events, and wallet changes.

Tasks

• Initialize NestJS project in microservices/blockchain-sync-service
• Set up Transaction, Event, Block entities
• Integrate Stellar Horizon API
• Implement transaction monitoring
• Add smart contract event listening
• Create wallet balance sync
• Implement block confirmation tracking
• Add webhook notifications for events
• Create transaction indexing
• Set up Docker configuration

Acceptance Criteria

• Transactions monitored in real-time
• Smart contract events captured
• Wallet balances synced
• Confirmations tracked
• Webhooks triggered correctly
• Service runs independently

[mijinummi]

@mijinummi has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello maintainers I'm a full stack developer experience in building scalable systems I can handle this perfectly if assigned

ℹ️ Repo Maintainers: To accept this application, review their application or assign @mijinummi to this issue.

[drips-wave]

Congratulations, @mijinummi! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @mijinummi: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊