subsystems 03 webbff

Web Backend-For-Frontend

Purpose

Acts as an API gateway to access downstream microservices

Mindmap of Dependencies

mindmap
    (Web Backend for Frontend)
        [Mandatory]
            Address Service | Degraded
            Identity Service | Unhealthy
            Order Service | Degraded
            Tyres Service | Degraded
        [Optional]
            Elasticsearch | Degraded

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Description of Dependencies

Mandatory

• Address Service: A downstream microservice
  • Health status when down: Degraded
• Identity Service: Used to perform a token exchange and also acts as a downstream microservice
  • Health status when down: Unhealthy
• Order Service: A downstream microservice
  • Health status when down: Degraded
• Tyres Service: A downstream microservice
  • Health status when down: Degraded

Optional

• Elasticsearch: Used for logging
  • Health status when down: Degraded