PrototypeInternal IT operations Confidential system, demo on request

NetPulse: Network Monitoring

Real-time monitoring for servers, routers, and network devices: an on-prem agent pings them and a cloud dashboard shows status live.

NetPulse: Network Monitoring screenshot

Team of one· Solo full-stack engineer

No team, no agency, no hand-offs. I owned this project end to end:

  • Requirements
  • Architecture
  • UI & UX
  • Backend & APIs
  • Database
Stack
Next.js 15PythonSupabase RealtimeWebSocketsRLS

What was broken, and what fixed it

  1. Problem: IT learned about a downed device when users called.

    Fix: An on-prem Python agent pings servers, routers, and devices on a set interval with timeout detection, and the dashboard updates live without a page refresh.

  2. Problem: The devices are on a private network, but the team wants to see status from anywhere.

    Fix: The agent pushes results out to Supabase, which streams them to a cloud dashboard behind Supabase Auth and row-level security.

Approach

  • Hybrid design: an on-prem Python agent does ICMP checks and pushes results to a cloud dashboard.
  • Supabase Auth with row-level security protects the data.

What I built

  • Python agent with configurable intervals and timeout detection
  • Next.js dashboard with live WebSocket updates and charts
  • Bulk add, edit, and delete of monitored devices, with labels and categories
  • CSV and JSON export

Architecture

Interface

  • Next.js 15
  • Charts

Logic & APIs

  • Python
  • Supabase Realtime
  • WebSockets
  • TypeScript

Data

  • RLS
  • Supabase

Infrastructure & delivery

  • Identity
  • Server
  1. 1
    PythonServer

    An on-prem Python agent uses asyncio and icmplib to ping servers, routers, and devices on a set interval.

  2. 2
    ChartsRealtimeSupabase

    The agent pushes results to Supabase, and Supabase Realtime streams them to the dashboard.

  3. 3
    Next.jsChartsTypeScript

    A Next.js 15 and TypeScript dashboard shows live status, response times, and charts.

  4. 4
    SupabaseRow-level securityIdentity

    Supabase Auth handles sign-in, with row-level security on the data.

Engineering

  • Row-level security in Supabase protects device data at the database level.
  • The agent installs as a systemd service on Linux, so monitoring survives reboots.
  • Performance test scripts exercise the agent and its WebSocket updates.
  • The dashboard reconnects automatically and uses optimistic updates with error handling.

Outcome

  • Device status updates live on the dashboard without a page refresh.