Mermaid Cheat Sheet v11.13.0

flowchart TD
    %% Node definitions
    A[Start]
    B{Decision}
    C[Process]
    D((End))

    %% Connections
    A --> B
    B -->|Yes| C
    B -->|No| D
    C --> D

    %% Subgraph
    subgraph Subprocess
        C --> E[Step 1]
        E --> F[Step 2]
    end

sequenceDiagram
    actor User
    participant Frontend
    participant API
    participant Database

    User->>Frontend: Click login
    Frontend->>API: POST /login
    API->>Database: Query user
    Database-->API: Return data
    API-->Frontend: Return token

    loop Retry
        API->>Database: Retry query
    end

    alt User exists
        API-->Frontend: Success
    else Not found
        API-->Frontend: Error
    end

classDiagram
    class Animal {
        +String name
        +int age
        +makeSound()
    }

    class Dog {
        +breed
        +fetch()
    }

    Animal <|-- Dog : Inheritance
    Dog o-- Toy : Aggregation

---
config:
  theme: forest
  look: handDrawn
---

flowchart TD
    A[Start] --> B[End]