Testing application.

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testing-proxy

A modern SvelteKit application with Svelte 5 runes, Tailwind CSS, and Flowbite components.

Setup

Install dependencies:

pnpm install

Configuration

Copy the example configuration to create your local config.json:

cp config.json.example config.json

This file contains settings for database and server configuration. See Configuration below for available options.

Development

Start the dev server on http://localhost:3000:

npm run dev

# Auto-open in browser
npm run dev -- --open

Hot module reload enabled by default.

Build & Deploy

Create a production build:

npm run build

Preview the production build locally:

npm run preview

Production output goes to /build/ (configured for Node.js via @sveltejs/adapter-node).

Project Structure

src/routes/ — SvelteKit filesystem routes
src/lib/ — Reusable components and utilities (access via $lib alias)
src/app.html — HTML shell (dark mode enabled via class="dark")

Tech Stack

Framework: SvelteKit 2.63.0 with Svelte 5 (runes mode)
Styling: Tailwind CSS 4.3.0 via @tailwindcss/vite + Forms/Typography plugins
Components: Flowbite Svelte 1.33.1 + Flowbite Icons
Build Tool: Vite 8.0.16
Adapter: Node.js (@sveltejs/adapter-node)

Important Notes

Svelte 5 Runes (Mandatory)

All .svelte files use runes mode by default. Use:

$state() for reactive variables
$derived for computed values
$effect() for side effects
{#snippet} for component snippets (e.g., icon slots)

See Svelte 5 runes documentation.

Styling

Dark mode hardcoded in app.html (remove class="dark" from <html> to disable)
Use Tailwind utilities directly; no CSS Modules
Scoped styles available via <style> blocks in .svelte files

Internationalization (i18n)

The project uses Paraglide JS for i18n with:

Languages: English (en-US) and Spanish (es-MX)
Auto-localized Routes: URLs automatically prefixed with language code (e.g., /en/ or /es/)
Runtime API: Use getLocale(), setLocale(), and deLocalizeUrl() from $lib/paraglide/runtime.js
Messages: Locale-aware functions in $lib/paraglide/messages.js

All routes are automatically localized. No manual language handling needed.

Configuration Reference

The config.json file (copied from config.json.example) controls server and database settings:

Database Configuration

{
  "database": {
    "type": "sqlite3",
    "sqlite3": {
      "fileMustExist": false,
      "filename": "app.db",
      "readonly": false,
      "timeout": 5000,
      "performance": {
        "foreignKeys": true,
        "journalMode": "wal",
        "synchronous": 1,
        "tempStore": "memory"
      }
    }
  },
  "password": {
    "algorithm": "argon2id",
    "options": {
      "memoryCost": 61440,
      "timeCost": 3,
      "parallelism": 1
    }
  }
}

database.type — Database backend (currently sqlite3)
database.sqlite3.filename — Path to the SQLite database file
database.sqlite3.timeout — Query timeout in milliseconds
database.sqlite3.performance — Performance tuning options (WAL mode, foreign keys, etc.)
password.algorithm — Password hashing algorithm (currently argon2id)
password.options — Argon2id configuration (memory cost in KiB, time cost iterations, parallelism level)

Database Initialization

The database is automatically initialized on first creation with:

users table — Stores user accounts with email and password (hashed) fields
Admin user — Created automatically with email admin@delete.me and password deleteme (hashed with argon2id)

Database initialization is idempotent and runs only once when the database file is first created. The admin user is seeded only if no users exist.

Password Security

Passwords are hashed using Argon2id (configured in config.json). Crypto utilities are available in src/lib/crypto.js for hashing and verification.

Exit Codes

The application uses the following exit codes for process termination:

Code	Meaning	Trigger
`0`	Success / Graceful shutdown	`SIGTERM`, `SIGINT` signals
`1`	Runtime error	Uncaught exceptions or unhandled promise rejections
`2`	Cleanup error	Error during graceful shutdown cleanup logic

Exit codes are defined in src/hooks.server.js and are emitted when the process receives termination signals or encounters runtime errors.

README.md