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| Service | Tech Stack | Key Responsibilities | |---------|------------|-----------------------| | Web Front‑End | React 18 + Vite, TailwindCSS | UI, client‑side validation, temporary UUID handling | | API Gateway | Node.js (Express) + TypeScript, OpenAPI spec | Public endpoints, rate limiting, request routing | | Auth Service | Auth0 (or custom JWT) | Temporary UUID issuance, optional user accounts | | Job Queue | RabbitMQ (or AWS SQS) | Reliable async job dispatch, back‑pressure handling | | Worker Pool | Python 3.11 + FastAPI, Docker, CUDA 12 | Pull jobs, run upscale model, store result | | Upscale Engine | Custom TensorRT‑optimized model (based on ESRGAN/Real‑ESRGAN) + OpenVINO fallback | Full‑scene processing, 4× upscale, color‑preservation mode | | Object Storage | MinIO (self‑hosted) or AWS S3 | Persist original & upscaled assets, TTL for free results (48 h) | | Metrics & Logging | Prometheus + Grafana, ELK stack | SLA monitoring, usage analytics, error tracing |
The feature aims to allow users to upscale and access full scenes from specific videos, in this case, "Lisa Lipps Golden Lipps." The feature could include AI-driven video upscaling, scene selection, and possibly a library of scenes for users to browse. lisa lipps golden lipps full sceneupscale free
| Test ID | Scenario | Expected Outcome |
|---------|----------|-------------------|
| UT‑001 | Upload a 1920 × 1080 PNG, select 4× upscale, click Upscale | Job is queued, processed < 10 s, result download link appears; badge visible. |
| UT‑002 | Upload a 5 min MP4 (exceeds limit) | UI shows error: “Video exceeds maximum length (30 s).” |
| UT‑003 | Perform 6th upscale in a day (free tier) | API returns 429; UI shows “Daily quota reached, upgrade for unlimited.” |
| UT‑004 | Use the service without signing up, then close browser; reopen after 2 h | Temporary UUID persists (via cookie); previous result still downloadable (within 48 h TTL). |
| UT‑005 | Convert a low‑res scene with strong gradients; verify color drift < 2 ΔE | Automated visual regression test passes. |
| UT‑006 | Spike 200 concurrent upscales; verify 99 % of jobs finish within 12 s | Load test passes, auto‑scale spin‑up logs show new workers added. |
| UT‑007 | API call with missing file field | Returns 400 Bad Request with JSON error message. |
| UT‑008 | Share result directly to Instagram via built‑in button | OAuth flow completes, image posted, user receives confirmation toast. | | Service | Tech Stack | Key Responsibilities