Architecture

This section describes the architecture of individual components and how they interact with each other.

• Django
  • Build and Run
    • Testing
  • Database Model
  • Access Control
• Leshan
  • Build and Run
  • Leshans Role in flownexus
  • Device Data and Onboarding
  • CoAP Block-wise Transfer Limit
• Communication, Interfaces
  • Data Flow: Endpoint -> Backend
    • Registration Updates
  • Data Flow: Backend -> Endpoint
    • Asynchronous Communication
    • Example Communication
• Gateway Contract
  • Ingest API
    • Registration Events
    • LwM2M Send
    • Single and Composite Resources
    • Responses and Delivery
  • Command API
    • Use of the Command API in Django
  • Timeouts
• Over the Air Updates
  • Update process of a Firmware
    • States of a OTA Update
    • Result Codes for an OTA Update
    • Testing with Mock Simulation