From b3f93d40d5b8e6ed656452f11fda2708276af920 Mon Sep 17 00:00:00 2001
From: RohanExploit <178623867+RohanExploit@users.noreply.github.com>
Date: Sun, 22 Feb 2026 13:53:28 +0000
Subject: [PATCH 1/2] feat(backend): optimize detection endpoints with image
 processing pipeline

- Update `detect_traffic_sign_endpoint` and `detect_abandoned_vehicle_endpoint` to use `process_uploaded_image`.
- This ensures images are validated, resized to max 1024x1024 (reducing CLIP payload size), and stripped of EXIF data.
- Improves performance (memory, bandwidth) and security.
- `process_uploaded_image` handles exceptions and raises `HTTPException` appropriately.
---
 backend/routers/detection.py | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/backend/routers/detection.py b/backend/routers/detection.py
index fd88a4f5..a8b9dbfa 100644
--- a/backend/routers/detection.py
+++ b/backend/routers/detection.py
@@ -406,11 +406,8 @@ async def detect_graffiti_endpoint(image: UploadFile = File(...)):
 
 @router.post("/api/detect-traffic-sign")
 async def detect_traffic_sign_endpoint(request: Request, image: UploadFile = File(...)):
-    try:
-        image_bytes = await image.read()
-    except Exception as e:
-        logger.error(f"Invalid image file: {e}", exc_info=True)
-        raise HTTPException(status_code=400, detail="Invalid image file")
+    # Optimized Image Processing: Validation + Optimization
+    _, image_bytes = await process_uploaded_image(image)
 
     try:
         client = get_http_client(request)
@@ -423,11 +420,8 @@ async def detect_traffic_sign_endpoint(request: Request, image: UploadFile = Fil
 
 @router.post("/api/detect-abandoned-vehicle")
 async def detect_abandoned_vehicle_endpoint(request: Request, image: UploadFile = File(...)):
-    try:
-        image_bytes = await image.read()
-    except Exception as e:
-        logger.error(f"Invalid image file: {e}", exc_info=True)
-        raise HTTPException(status_code=400, detail="Invalid image file")
+    # Optimized Image Processing: Validation + Optimization
+    _, image_bytes = await process_uploaded_image(image)
 
     try:
         client = get_http_client(request)

From dcb7d4e1aa253e808fbc5ec1e26a3146abf1d12d Mon Sep 17 00:00:00 2001
From: RohanExploit <178623867+RohanExploit@users.noreply.github.com>
Date: Sun, 22 Feb 2026 14:01:39 +0000
Subject: [PATCH 2/2] fix(render): use render-build.sh as build command and set
 PYTHONPATH to .

- Change `buildCommand` in `render.yaml` from `pip install ...` to `./render-build.sh` to ensure frontend build runs.
- Update `PYTHONPATH` from `backend` to `.` to fix import issues in `start-backend.py` and `backend.main`.
- This ensures both backend and frontend are built correctly during deployment.
---
 render.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/render.yaml b/render.yaml
index 593ec813..3d620164 100644
--- a/render.yaml
+++ b/render.yaml
@@ -3,7 +3,7 @@ services:
   - type: web
     name: vishwaguru-backend
     runtime: python
-    buildCommand: "pip install -r backend/requirements-render.txt"
+    buildCommand: "./render-build.sh"
     startCommand: "python start-backend.py"
     envVars:
       - key: PYTHON_VERSION
@@ -14,7 +14,7 @@ services:
           name: vishwaguru-backend
           property: port
       - key: PYTHONPATH
-        value: backend
+        value: .
       # Required API Keys (must be set in Render dashboard)
       - key: GEMINI_API_KEY
         sync: false