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AXE Server - Smart Transportation & Mobility Platform

AXE Server is a high-performance, microservices-based transportation platform designed to transform mobility in Algeria. It intelligently integrates public transport (bus, metro, train) and private ride-hailing (VTC) services to deliver the optimal route, time, and price to users — all in real-time.

Powered by AI agents, OSRM, Kafka, RabbitMQ, and a rock-solid Go + Python backend.


Axe: Smart Urban Transit Routing System

A smart, scalable, and eco-conscious backend platform for public transport routing, optimized with GTFS, OSRM, and live vehicle integration. Wiki

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Architecture Overview

AXE follows a modular microservices architecture with clear domain separation, high availability, and AI capabilities.

Core Services

ServiceTech StackPurpose
GatewayGo, Gin, OAuth 2.0, gRPCAPI Gateway, Auth, Routing orchestration
RoutingGo, OSRM, RabbitMQ, PostgreSQLMulti-modal journey planner
VTCGo, Kafka, GeocodingRide-hailing & dynamic pricing
DataFastAPI, AgentsAI-powered data collection & sync

Service Breakdown

Gateway Service

  • Built with Go + chi
  • Handles OAuth 2.0 login (Google)
  • Issues JWT tokens to secure access
  • Uses gRPC to communicate with Routing and VTC services
  • Aggregates multi-modal routes (Public + VTC)

Key Endpoints:

  • /auth/google
  • /routes/best
  • /vtc/prices
  • User management APIs

Routing Service

  • Built with Go + GORM
  • Integrates OSRM for road-based routing
  • Supports bus, tram, train, metro, private transport
  • Real-time updates via RabbitMQ

Data Models:

  • Stations: With GPS and safety scores
  • Lines: Public routes with fares/schedules
  • Stops: Sequenced line stops
  • Journeys: Optimized multi-transfer trips

Key Features:

  • Route safety rating
  • Dynamic fare calculation
  • Public transport schedules
  • Integration with Data Service for sync

VTC Service

  • Built with Go
  • Kafka-based event-driven architecture
  • Dynamic pricing, geolocation, driver/passenger matching

Key Features:

  • getVtcPrices() — surge-based real-time estimates
  • Multi-provider integration
  • Location-to-location time/distance estimation

Data Service (Multi-Agent AI)

  • Built with FastAPI + Python
  • 3 AI Agents:
    • ScraperAgent → Fetches raw transport data
    • CleanerAgent → Normalizes and validates
    • FinalizerAgent → Formats and stores in DB
  • Post-processing Diffing Algorithm compares finalized output with database.
    • If changes detected → emits sync event to Routing Service via RabbitMQ
    • Else → No-op

Infrastructure & Tooling

LayerTech
MessagingRabbitMQ (public), Kafka (VTC)
DatabasesPostgreSQL (shared schema)
AuthOAuth 2.0 + JWT
ContainerizationDocker Compose
Comm ProtocolsREST (clients), gRPC (internal), Webhooks
OrchestrationInternal service discovery

Business Logic Highlights

  • AI-Powered Processing: Clean, validate, and sync transport data in real-time.
  • Multi-Modal Smart Routing: Combines public + private transport options.
  • Pricing Engine: Compares public fares vs. VTC surge pricing.
  • Real-Time Updates: Station availability, delays, and new lines.
  • Secure and Modular: Authenticated API access with scalable microservices.

Target Market & Use Cases

Focus Region: Algeria (especially Algiers)

Use Cases:

  • Commuters: Work/school optimization
  • Tourists: Easy transport discovery
  • Price-Conscious Riders: Compare cheapest route
  • Infrastructure Teams: Use AI insights for public transport improvement

Diagrams

Visit docs/diagrams.md for full Mermaid UML Diagrams, including:

  • Component Diagram
  • Deployment Diagram
  • Sequence Diagrams (OAuth + Sync Flow)
  • Activity Diagram (Agent Flow + Diffing)
  • Class Diagrams (Routing Models + Agent Structure)
  • State Diagrams

Getting Started

Prerequisites

  • Docker + Docker Compose
  • Go 1.24.4+
  • Python 3.10+
  • Node.js (for frontend, if applicable)

Run Locally

git clone https://github.com/your-org/axe-server.git
cd axe-server
docker-compose up --build

Repo Structure

/gateway # gin + Go auth & orchestration
/routing # Public transport logic + OSRM
/vtc # Ride-hailing & dynamic pricing
/data_service # FastAPI multi-agent system
/proto # gRPC definitions
/config # Env, database configs
/docs # UML diagrams, API specs

Contributing

We welcome contributions for:

  • New agents (e.g., image analysis)
  • Localization (French, Arabic)
  • Mobile/Frontend integration
  • Performance improvements

License

Licensed under the MIT License. See LICENSE for more.


AXE Server is not just a platform — it's the future of urban mobility in Algeria. 🇩🇿


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