BE-07: Asset Registry Service (Verified Assets, Metadata, Caching)

[Cedarich]

Labels: backend, stellar, performance, wave4
Complexity: 150 points
Branch: feat/be-asset-registry
Summary
Provide a backend asset registry API that returns verified assets (XLM, USDC, etc.) plus metadata used by link generators and path payments.
Tasks

• Define asset model (code, issuer, type, decimals, icon_url, verified).
• Add endpoint to search and fetch verified asset list.
• Cache responses and add ETag/If-None-Match support.
• Add admin workflow to mark assets verified/unverified.
  Acceptance Criteria
• Verified list returns quickly and supports search.
• Caching reduces repeated calls without stale/incorrect results.
• Admin changes are reflected immediately after cache invalidation.

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[CNduka001]

@CNduka001 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hiii maintainer, I’d love to take on this task! I have experience with backend services and caching, and I'm confident I can deliver excellent results quickly. ETA - 15 hours. Thank you!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @CNduka001 to this issue.

[rohan911438]

@rohan911438 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

I would love to work on it

ℹ️ Repo Maintainers: To accept this application, review their application or assign @rohan911438 to this issue.

[drips-wave]

Congratulations, @rohan911438! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @rohan911438: 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.

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