My lastman project worked, got a bunch of SMS messages when the UPS for my stack of switches died.<\/p>\n\n\n\n
I looked at when I purchased this UPS, July 2021, so yeah 4 years, need to be replaced.<\/p>\n\n\n\n
I got quality batteries, this is a very important stack.<\/p>\n\n\n\n
Another thing I got done was listing devices and entities via python. Yesterday I got it working with curl\/bash. Here is my code for python<\/p>\n\n\n\n
#!\/usr\/bin\/python3
\"\"\"
hassquery.py
Simple Python Script that uses websockets API to query devices in home assistant
By Larry Apolonio
Date : 2025-05-13
\"\"\"
import argparse
import asyncio
import json
import websockets
# === CONFIGURATION ===
HA_WS_URL = \"ws:\/\/homeassistant.local:8123\/api\/websocket\"
ACCESS_TOKEN = \"TOKENGOESHERE\" # Replace with your token
# === PARSE ARGUMENTS ===
parser = argparse.ArgumentParser(description=\"List Home Assistant devices by integration.\")
parser.add_argument(
\"-i\", \"--integration\",
type=str,
default=\"all\",
help=\"Integration to filter by (e.g. zha, tplink, mqtt, hue). Use 'all' to list everything.\"
)
args = parser.parse_args()
filter_integration = args.integration.lower()
async def list_devices_by_integration():
\"\"\"
list_devices_by_integration
Actual function to list devices
\"\"\"
async with websockets.connect(HA_WS_URL, max_size=10 * 1024 * 1024) as ws:
# Step 1: Authenticate
await ws.recv()
await ws.send(json.dumps({\"type\": \"auth\", \"access_token\": ACCESS_TOKEN}))
auth_response = json.loads(await ws.recv())
if auth_response.get(\"type\") != \"auth_ok\":
print(\"Authentication failed.\")
return
print(f\"Authenticated. Listing devices for integration: '{filter_integration}'\\n\")
# Step 2: Get device registry
await ws.send(json.dumps({\"id\": 1, \"type\": \"config\/device_registry\/list\"}))
while True:
msg = json.loads(await ws.recv())
if msg.get(\"id\") == 1 and msg.get(\"type\") == \"result\":
devices = msg.get(\"result\", [])
break
# Step 3: Get entity registry
await ws.send(json.dumps({\"id\": 2, \"type\": \"config\/entity_registry\/list\"}))
while True:
msg = json.loads(await ws.recv())
if msg.get(\"id\") == 2 and msg.get(\"type\") == \"result\":
entities = msg.get(\"result\", [])
break
# Step 4: Build entity map
entity_map = {}
for ent in entities:
device_id = ent.get(\"device_id\")
if device_id not in entity_map:
entity_map[device_id] = []
entity_map[device_id].append(ent)
# Step 5: Filter and print
matched_count = 0
for device in devices:
device_id = device.get(\"id\")
related_entities = entity_map.get(device_id, [])
platforms = {e.get(\"platform\", \"\").lower() for e in related_entities}
if filter_integration != \"all\" and filter_integration not in platforms:
continue
matched_count += 1
name = device.get(\"name_by_user\") or device.get(\"name\") or \"Unnamed\"
manufacturer = device.get(\"manufacturer\", \"Unknown\")
model = device.get(\"model\", \"Unknown\")
identifiers = device.get(\"identifiers\", [])
area = device.get(\"area_id\", \"N\/A\")
print(f\"Name : {name}\")
print(f\"Manufacturer : {manufacturer}\")
print(f\"Model : {model}\")
print(f\"Area : {area}\")
print(f\"Identifiers : {identifiers}\")
print(f\"Platforms : {', '.join(sorted(platforms)) or 'N\/A'}\")
print(\"Entities :\")
for ent in related_entities:
print(f\" - {ent['entity_id']} ({ent['platform']})\")
print(\"-\" * 60)
print(f\"\\nTotal devices found: {matched_count}\")
if __name__ == '__main__':
asyncio.run(list_devices_by_integration())
<\/pre>\n\n\n\nWeight: 347.8<\/p>\n","protected":false},"excerpt":{"rendered":"
My lastman project worked, got a bunch of SMS messages when the UPS for my stack of switches died. I looked at when I purchased this UPS, July 2021, so yeah 4 years, need to be replaced. I got quality … Continue reading