🔧 Technical Implementation Guide¶

Overview¶

This guide provides detailed technical implementation guidance for developing the GetCimple platform, covering architecture patterns, coding standards, and implementation best practices.

Architecture Implementation¶

Frontend Architecture (SvelteKit)¶

Project Structure¶

packages/frontend/
├── src/
│   ├── routes/          # SvelteKit routes
│   ├── lib/
│   │   ├── components/  # Reusable components
│   │   ├── stores/      # Svelte stores
│   │   ├── utils/       # Utility functions
│   │   └── types/       # TypeScript types
│   ├── app.html         # App template
│   └── app.d.ts         # App types
├── static/              # Static assets
└── svelte.config.js     # SvelteKit config

Component Guidelines¶

Use TypeScript for all components
Implement proper prop validation
Follow composition over inheritance
Use Svelte stores for state management
Implement proper accessibility

Backend Architecture (Cloudflare Workers)¶

Project Structure¶

packages/backend/
├── src/
│   ├── api/            # API endpoints
│   ├── services/       # Business logic
│   ├── middleware/     # Request middleware
│   ├── utils/          # Utility functions
│   └── types/          # TypeScript types
├── wrangler.toml       # Worker configuration
└── tsconfig.json       # TypeScript config

API Design Patterns¶

RESTful resource naming
Consistent error responses
Request validation with Zod
Response type safety
Rate limiting implementation

Database Implementation¶

Supabase Schema Design¶

Multi-Tenant Architecture¶

-- Base tenant table
CREATE TABLE tenants (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name TEXT NOT NULL,
    domain TEXT UNIQUE,
    created_at TIMESTAMPTZ DEFAULT now()
);

-- RLS policy example
CREATE POLICY "Users can only see their tenant data"
ON some_table
FOR ALL
USING (tenant_id = auth.jwt()->>'tenant_id');

Migration Best Practices¶

Incremental migrations only
Always include rollback scripts
Test migrations locally first
Document breaking changes
Version control all migrations

Authentication Implementation¶

Kinde Auth Integration¶

Setup Configuration¶

// Frontend auth setup
import { createKindeClient } from '@kinde-oss/kinde-auth-sveltekit'

export const kindeAuth = createKindeClient({
  domain: import.meta.env.VITE_KINDE_DOMAIN,
  clientId: import.meta.env.VITE_KINDE_CLIENT_ID,
  redirectUri: import.meta.env.VITE_KINDE_REDIRECT_URI,
})

Protected Routes¶

// Route protection example
export async function load({ locals }) {
  if (!locals.user) {
    throw redirect(303, '/login')
  }

  return {
    user: locals.user,
  }
}

State Management¶

Svelte Stores Pattern¶

Global State Store¶

// stores/app.ts
import { writable, derived } from 'svelte/store'

export const user = writable(null)
export const tenant = writable(null)

export const isAuthenticated = derived(user, ($user) => $user !== null)

Component State¶

// Local component state
<script lang="ts">
    import { onMount } from 'svelte';

    let data = [];
    let loading = true;

    onMount(async () => {
        data = await fetchData();
        loading = false;
    });
</script>

API Integration¶

Frontend API Client¶

Type-Safe API Calls¶

// lib/api/client.ts
export class ApiClient {
  async get<T>(endpoint: string): Promise<T> {
    const response = await fetch(`/api${endpoint}`, {
      credentials: 'include',
    })

    if (!response.ok) {
      throw new ApiError(response.status)
    }

    return response.json()
  }
}

Testing Implementation¶

Unit Testing¶

// component.test.ts
import { render } from '@testing-library/svelte'
import Component from './Component.svelte'

describe('Component', () => {
  it('renders correctly', () => {
    const { getByText } = render(Component, {
      props: { title: 'Test' },
    })

    expect(getByText('Test')).toBeInTheDocument()
  })
})

E2E Testing¶

// e2e/dashboard.spec.ts
import { test, expect } from '@playwright/test'

test('dashboard loads', async ({ page }) => {
  await page.goto('/dashboard')
  await expect(page.locator('h1')).toContainText('Dashboard')
})

Performance Optimization¶

Frontend Optimization¶

Lazy loading routes
Image optimization
Bundle splitting
Preloading critical resources
Service worker caching

Backend Optimization¶

Edge caching strategies
Query optimization
Connection pooling
Response compression
Worker resource limits

Security Implementation¶

Input Validation¶

// Zod schema example
import { z } from 'zod'

const userSchema = z.object({
  email: z.string().email(),
  name: z.string().min(2).max(100),
  role: z.enum(['director', 'manager', 'implementer']),
})

CSRF Protection¶

SvelteKit built-in CSRF
Token validation
Same-site cookies
Origin verification

Error Handling¶

Global Error Boundary¶

// app.html error handling
export function handleError({ error, event }) {
  console.error('Unhandled error:', error)

  return {
    message: 'An unexpected error occurred',
    code: error?.code || 'UNKNOWN',
  }
}

Deployment Preparation¶

Build Optimization¶

Production builds
Environment variables
Asset optimization
Bundle analysis
Performance budgets

Future Considerations¶

Implement WebSocket support
Add offline capabilities
Enhance caching strategies
Implement advanced monitoring