Templates / stateDiagram-v2

Circuit breaker states

Closed, open, and half-open states for a resilience circuit breaker guarding a downstream call.

Open in studio

Preview

Mermaid 11 renderer

Rendering preview...

Mermaid source

stateDiagram-v2

stateDiagram-v2
    [*] --> Closed
    Closed --> Open : failure threshold exceeded
    Open --> HalfOpen : reset timeout elapsed
    HalfOpen --> Closed : trial request succeeds
    HalfOpen --> Open : trial request fails
    Closed --> Closed : request succeeds

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.