System Architecture Overview

IMPLEMENTED

Sheba ISP ERP is architected as a modular monolith with a decoupled Next.js frontend, an asynchronous Celery task engine, a high-concurrency Redis caching layer, and a single-schema multi-tenant PostgreSQL database.

1. High-Level Context Diagram

2. Request-Response Lifecycle

Every HTTP request entering the backend undergoes a deterministic 7-stage processing pipeline:

3. Communication Protocols & Standards

• Internal API: JSON over HTTP REST. Standard DRF pagination (count, next, previous, results).
• MikroTik RouterOS v7:
  • Primary: REST API over HTTPS (/rest/...).
  • Secondary/Fallback: RouterOS API protocol (port 8728 / 8729 SSL).
• OLT Management:
  • Telemetry & Optical Diagnostics: SNMP v2c / v3, CLI scraping over SSH/Telnet.
• Asynchronous Messaging: Celery serialized JSON payloads routed over Redis queue.