Add Metrics Endpoint for Prometheus

[mikewheeleer]

Implement Prometheus Metrics Endpoint

Description

Expose request counts, latencies, error rates, and dependency metrics for operational monitoring.

Requirements and context

• Must be secure, tested, and documented
• Should be efficient and easy to review

Suggested execution

• Fork the repo and create a branch
• git checkout -b feature/prometheus-metrics
• Implement changes
• Write backend code: metrics registry and middleware
• Write comprehensive tests: metric registration and update assertions
• Add documentation: README.md
• Include JSDoc-style comments
• Validate security assumptions

Test and commit

• Run tests
• Cover edge cases
• Include test output and security notes

Example commit message

feat(observability): add Prometheus metrics endpoint and middleware

Guidelines

• Minimum 95 percent test coverage
• Clear documentation
• Timeframe: 96 hours

[drips-wave]

Congratulations, @RuthChisom! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @RuthChisom: 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 🌊

[Mitch5000]

@Mitch5000 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hello, I'm a fullstack developer with years of experience, can i work on this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Mitch5000 to this issue.