Welcome to noor Discussions!

[hemedani]

👋 Welcome!

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[hemedani]

Sure, I can help you design system diagrams in Mermaid! Here are a few types of system design diagrams you might find useful:

1. High-Level Architecture Diagram

This shows the main components of a system and how they interact. Here's an example:

flowchart TD
    User -->|Requests| Frontend
    Frontend -->|API Calls| Backend
    Backend -->|Database Queries| Database
    Backend -->|Third-party API Calls| ExternalAPIs
    Backend -->|File Storage| Storage

    subgraph Client
        User
        Frontend
    end

    subgraph Server
        Backend
    end

    subgraph Data
        Database
        Storage
    end

    subgraph ThirdParty
        ExternalAPIs
    end

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2. Microservices Architecture

This example illustrates a system with separate microservices for different functionalities.

flowchart TD
    User --> Gateway
    Gateway -->|Auth Requests| AuthService
    Gateway -->|Data Requests| DataService
    Gateway -->|Billing Requests| BillingService

    subgraph Microservices
        AuthService
        DataService
        BillingService
    end

    DataService -->|Database Queries| Database
    BillingService -->|Payment Gateway| PaymentService

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3. Database Schema

Here’s an example of a database schema for an application with users, projects, and tasks:

erDiagram
    USER {
        int id PK
        string name
        string email
    }

    PROJECT {
        int id PK
        string name
        string description
        int user_id FK
    }

    TASK {
        int id PK
        string title
        string description
        date due_date
        int project_id FK
        int assigned_user_id FK
    }

    USER ||--o{ PROJECT : owns
    PROJECT ||--o{ TASK : contains
    USER ||--o{ TASK : assigned

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4. Sequence Diagram

This sequence diagram shows a typical request/response lifecycle in a client-server system.

sequenceDiagram
    participant User
    participant Frontend
    participant Backend
    participant Database

    User->>Frontend: Sends Request
    Frontend->>Backend: API Call
    Backend->>Database: Query Data
    Database-->>Backend: Return Data
    Backend-->>Frontend: Respond
    Frontend-->>User: Display Data

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5. Deployment Diagram

This shows the different environments for deployment, including servers and databases.

flowchart TD
    subgraph Dev
        devServer[Development Server]
        devDB[(Development Database)]
    end

    subgraph Staging
        stagingServer[Staging Server]
        stagingDB[(Staging Database)]
    end

    subgraph Prod
        prodServer[Production Server]
        prodDB[(Production Database)]
    end

    devServer --> devDB
    stagingServer --> stagingDB
    prodServer --> prodDB

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Let me know if you’d like any other specific diagrams or more customization for your system!