Upload main.py

main.py

@@ -41,7 +41,7 @@ async def receive_update(req: Request):
     wa_id  = change["contacts"][0]["wa_id"]
     msg    = change["messages"][0]
 
-    # IMAGE: convert to Base64 preview
+    # IMAGE: if user sent an image, convert to Base64 preview
     if msg["type"] == "image":
         media_id = msg["image"]["id"]
         # 1) get media URL
@@ -51,23 +51,25 @@ async def receive_update(req: Request):
         )
         media_resp.raise_for_status()
         media_url = media_resp.json()["url"]
-        # 2) download bytes
+        # 2) download bytes with auth
         media_bytes = httpx.get(
             media_url,
             headers={"Authorization": f"Bearer {WHATSAPP_API_TOKEN}"}
         ).content
         # 3) encode & preview
         preview = base64.b64encode(media_bytes).decode("utf-8")[:10]
+        # send back preview
         send_whatsapp_message(wa_id, f"Base64: {preview}")
         return JSONResponse({"status": "image_preview_sent", "preview": preview})
 
     # TEXT: simple echo
     if msg["type"] == "text":
         incoming = msg["text"]["body"]
-        send_whatsapp_message(wa_id, f"You said: {incoming}")
+        reply    = f"You said: {incoming}"
+        send_whatsapp_message(wa_id, reply)
         return JSONResponse({"status": "replied"})
 
-    # ANY OTHER TYPE: ignore silently
+    # OTHER: ignore
     return JSONResponse({"status": "ignored", "type": msg["type"]})
 
 # health-check endpoint for token