ip addr displayed here too + ping

server.py

@@ -15,6 +15,7 @@ Usage:
 import argparse
 import logging
 import os
+import socket
 import threading
 import time
 from contextlib import asynccontextmanager
@@ -61,6 +62,22 @@ class LiveFrameSink(Sink):
         pass
 
 
+def _get_lan_address() -> tuple[str, str]:
+    """Return (ip, hostname) for the primary LAN interface."""
+    ip = "127.0.0.1"
+    try:
+        # Open a UDP socket to an external IP (doesn't actually send anything)
+        # to figure out which local NIC the OS would route through.
+        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+        s.connect(("8.8.8.8", 80))
+        ip = s.getsockname()[0]
+        s.close()
+    except Exception:
+        pass
+    hostname = socket.getfqdn()
+    return ip, hostname
+
+
 # ---------------------------------------------------------------------------
 # Pipeline runner (background thread)
 # ---------------------------------------------------------------------------
@@ -185,6 +202,17 @@ async def app_lifespan(_app: FastAPI):
     t.start()
     logger.info("Pipeline running in background.")
 
+    # Show real addresses
+    ip, hostname = _get_lan_address()
+    port = _args.port if hasattr(_args, "port") else 8000
+    logger.info("=" * 50)
+    logger.info("  Server ready")
+    logger.info("  Local:    http://127.0.0.1:%d", port)
+    logger.info("  Network:  http://%s:%d", ip, port)
+    if hostname and hostname != ip:
+        logger.info("  Hostname: http://%s:%d", hostname, port)
+    logger.info("=" * 50)
+
     yield  # --- app serves requests ---
 
     # Shutdown
@@ -209,6 +237,12 @@ app.mount("/static", StaticFiles(directory="static"), name="static")
 # -- Auth ------------------------------------------------------------------
 
 
+@app.get("/ping")
+def ping():
+    """Health check for the mobile app to verify connectivity."""
+    return {"status": "ok", "name": "SmokingDetection"}
+
+
 @app.post("/register")
 def register(username: str = Form(...), password: str = Form(...)):
     try: