[Backend] Implement Comprehensive Input Validation for Certificate Generation

[ayomideadeniran]

🚀 Feature Overview

Implement validation for certificate generation requests to prevent abuse and ensure data integrity.

This is a critical, MVP-critical feature designed to prevent fraudulent certificate generation.

🛠️ Implementation Requirements

• Build input validation system.
• Include comprehensive unit tests with coverage >90%.
• Add thorough documentation and educational comments.
• Integrate with existing certificate infrastructure.

🔧 Technical Specifications

• Built with Node.js and Express.
• Use zod for validation schemas.
• Validate certificate requests.
• Follow security best practices.

✅ Acceptance Criteria

• Validation prevents abuse.
• Data integrity is ensured.
• All unit tests pass with full coverage.
• Documentation is complete and educational.

🎓 Difficulty Level

Intermediate - Requires understanding of validation and Node.js development.

⏱️ Timeline

ETA: 1 day

[Luchistack]

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

I would love to work on this issue

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

[king-aj-the-first]

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

Hi, i'd like to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @king-aj-the-first to this issue.

[drips-wave]

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

🧑‍💻 @king-aj-the-first: 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 🌊