Templates / sequenceDiagram

Saga pattern with compensation

A distributed transaction orchestrated as a saga, with compensating actions after a payment failure.

Open in studio

Preview

Mermaid 11 renderer

Rendering preview...

Mermaid source

sequenceDiagram

sequenceDiagram
    participant Orchestrator
    participant Order as Order service
    participant Payment as Payment service
    participant Inventory as Inventory service

    Orchestrator->>Order: Create order
    Order-->>Orchestrator: Order created
    Orchestrator->>Payment: Charge card
    Payment-->>Orchestrator: Payment failed
    Orchestrator->>Order: Compensate: cancel order
    Order-->>Orchestrator: Order cancelled
    Orchestrator->>Inventory: Compensate: release stock
    Inventory-->>Orchestrator: Stock released

More templates

flowchartArchitecture

Microservices architecture

A service map with an API gateway, core services, and shared infrastructure. A solid starting point for README architecture sections.

sequenceDiagramProcess

User login sequence

A login flow with token issuance and a failure branch. Useful for documenting auth endpoints and session behavior.

stateDiagram-v2Process

Order state machine

Lifecycle states for an e-commerce order, from creation to fulfillment, with cancellation and refund paths.