Implement Rate Limiting (Throttling) #18

[Delightech28]

Closes #18

• Installed @nestjs/throttler
• Configured global rate limit: 100 requests per minute (ttl 60s)
• Added ThrottlerGuard globally via APP_GUARD
• Headers X-RateLimit-Limit and X-RateLimit-Remaining are present in responses
• Tested locally by spamming /api/v1/health endpoint → 429 Too Many Requests after limit
• Screenshot of 429 response + headers attached (also shows remaining count decreasing)

[Oluwaseyi89]

@Delightech28 please, resolve the type errors and any lint errors.

[Delightech28]

Hi,

Thanks again for the earlier feedback about type errors and lint issues.

I ran the following locally:

• pnpm lint --fix → no remaining lint errors
• pnpm tsc --noEmit → no TypeScript errors
• Re-tested rate limiting → still hits 429 after 100 requests, headers present

Everything should be clean now.

Happy to make any additional adjustments — just let me know.
Ready for re-review whenever you have time 🙏

[Oluwaseyi89]

@Delightech28 please, review the CI errors.

[Delightech28]

Hi @Oluwaseyi89 (or any maintainer with write access),

Thanks for the ongoing review!

I pushed an update to .github/workflows/nftopia-backend.yml to fix the "pnpm not found" error (added pnpm/action-setup@v3).

CI is now waiting for maintainer approval to run the workflow (standard security check for forks).

Could you approve the workflow run in #76/#86? Once approved, it should install dependencies, lint, type-check, and test successfully (all passed locally).

Happy to make any other adjustments!