A minimal, secure full-stack encrypted diary and note-taking platform.

Backend: ASP.NET Core 10 · EF Core 10 · Identity · JWT · PostgreSQL · Scalar
Frontend: React 19 · TypeScript · Vite · Tailwind CSS · Zustand

• Register & login using email or username
• JWT-based authentication with refresh tokens
• End-to-end encryption for diary entries
• EF Core with PostgreSQL
• Clean layered architecture (Entities, DTOs, Services, Endpoints, Validators)
• Automatic OpenAPI generation + Scalar UI
• FluentValidation for request validation

• Modern React with TypeScript
• Secure authentication flow
• Diary CRUD operations (Create, Read, Update, Delete)
• Zustand state management
• Tailwind CSS styling
• HTTPS development environment

• .NET 10 SDK
• PostgreSQL 18
• EF Core tools:

dotnet tool install --global dotnet-ef

• *Node.js 18+
• npm or pnpm

Install backend dependencies:

sudo pacman -S dotnet-sdk aspnet-runtime postgresql

Install frontend dependencies:

sudo pacman -S nodejs npm

Docs:

• .NET on Arch Linux
• PostgreSQL on Arch Linux

• .NET 10: https://dotnet.microsoft.com
• PostgreSQL: https://www.postgresql.org/download/windows/
• Node.js: https://nodejs.org

Database:

"ConnectionStrings": { "DefaultConnection": "Host=localhost;Database=purenote;Username=YOUR_USER;Password=YOUR_PASS" }

JWT:

"Jwt": { "Key": "your-super-long-unique-32-byte-secret-key-here", "Issuer": "PureNote", "Audience": "PureNoteUsers", "ExpiryInMinutes": 60 }

CORS:

"AllowedOrigins": [ "https://localhost:3000" ]

Update the API base URL if needed:

const API_BASE_URL = "https://localhost:7000/api";

cd PureNote.Api # Apply migrations dotnet ef database update # Run the API dotnet run

API will be available at:

• HTTPS: https://localhost:7000
• Scalar Docs: https://localhost:7000/scalar

cd purenote-web # Install dependencies npm install # Run development server npm run dev

Frontend will be available at:

• HTTPS: https://localhost:3000

Run with hot reload:

dotnet watch

Development mode:

npm run dev

Interactive API documentation is available via Scalar:

https://localhost:7000/scalar 

Explore endpoints, test requests, and view schemas directly in the browser.

• ASP.NET Core 10 - Minimal APIs
• EF Core 10 - ORM with PostgreSQL
• Identity 10.0.0 - User management
• JWT Authentication 10.0.0 - Secure token-based auth
• Npgsql 10.0.0 - PostgreSQL provider
• Scalar.AspNetCore 2.11.0 - API documentation
• FluentValidation 12.1.0 - Request validation

• React 19 - UI library
• TypeScript - Type safety
• Vite - Build tool & dev server
• Tailwind CSS 4 - Utility-first styling
• Zustand - Lightweight state management
• React Router 7 - Client-side routing
• Axios - HTTP client

• End-to-end encryption for diary entries
• JWT authentication with secure token handling
• HTTPS-only in development and production
• Input validation with FluentValidation
• CORS configured for frontend origin
• Password hashing via ASP.NET Core Identity

Licensed under the GNU GPLv3.