Vault TVL Snapshot & Prometheus Exporter

[edehvictor]

📝 Description

We need better operational monitoring for the core team. Create a Prometheus exporter that formats our core protocol metrics so they can be scraped and visualized in Grafana.

🎯 Acceptance Criteria

• Build an Express endpoint /metrics utilizing the prom-client library.
• Expose critical metrics: Total Value Locked (TVL) per vault, total unique depositors, and current APYs.
• Expose backend health metrics: API response times, database connection pool status, and indexer lag.
• Protect the endpoint using basic authentication or IP whitelisting.

🛠 Technical Details

• Stack: Node.js, Prometheus Client, Express.
• Location: /backend/monitoring/prometheus.ts
• Security: Do not expose user-specific data or wallet addresses in the metrics dump.

⏱ Complexity & Scope

• Estimated Time: 2 weeks.
• Drips Complexity: High (200 points) - DevOps and infrastructure observability.

📋 Guidelines for Submission

• Minimum 90 percent test coverage required.
• Clear NatSpec-style documentation must be added to public contract functions.
• Timeframe for completion: 2 Wave cycles.

[Keengfk]

@Keengfk has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

i would like to apply for this issue my bro

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