Add Direct PostgreSQL Shim Architecture - SSR + API routes for direct DB access
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IMPLEMENTATION_PLAN_DIRECT_DB.md
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IMPLEMENTATION_PLAN_DIRECT_DB.md
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# 🔱 God Mode: Direct PostgreSQL Shim Architecture
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## Implementation Plan & Task List
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**Objective:** Build a frontend that connects directly to PostgreSQL without going through Directus or traditional REST APIs, using server-side rendering (SSR) and a secure "shim" layer.
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**Architecture:** Astro SSR + Direct PostgreSQL Pool + Secure API Routes
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---
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## 📋 ARCHITECTURE OVERVIEW
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```
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┌─────────────────────────────────────────────────────────┐
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│ BROWSER (Client-Side JavaScript) │
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│ - React Components │
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│ - TanStack Query for state management │
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│ - NO database credentials, NO SQL │
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└─────────────────┬───────────────────────────────────────┘
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│
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│ HTTP Requests
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│
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┌─────────────────▼───────────────────────────────────────┐
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│ ASTRO SSR LAYER (Server-Side) │
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│ ┌─────────────────────────────────────────────────┐ │
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│ │ 1. Server-Side Pages (---) │ │
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│ │ - Direct SQL queries in Astro frontmatter │ │
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│ │ - Pool.query() before HTML render │ │
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│ └─────────────────────────────────────────────────┘ │
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│ ┌─────────────────────────────────────────────────┐ │
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│ │ 2. API Routes (/api/shim/*) │ │
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│ │ - Secure endpoints for client-side calls │ │
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│ │ - Token validation │ │
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│ │ - SQL query execution │ │
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│ └─────────────────────────────────────────────────┘ │
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│ ┌─────────────────────────────────────────────────┐ │
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│ │ 3. Shim Layer (src/lib/shim/) │ │
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│ │ - Query builders │ │
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│ │ - Type-safe SQL functions │ │
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│ │ - Connection pool management │ │
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│ └─────────────────────────────────────────────────┘ │
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└─────────────────┬───────────────────────────────────────┘
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│
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│ SQL Queries (via pg Pool)
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│
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┌─────────────────▼───────────────────────────────────────┐
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│ POSTGRESQL DATABASE │
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│ - sites, campaigns, generated_articles, work_log, etc. │
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└─────────────────────────────────────────────────────────┘
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```
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---
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## 📁 FILES TO CREATE (New Shim Layer)
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### 1. Core Shim Infrastructure
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| File Path | Purpose | Priority |
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|-----------|---------|----------|
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| `src/lib/shim/queries.ts` | Type-safe SQL query builders for all tables | ⭐ HIGH |
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| `src/lib/shim/types.ts` | TypeScript interfaces matching DB schema | ⭐ HIGH |
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| `src/lib/shim/sites.ts` | Sites-specific queries (CRUD operations) | ⭐ HIGH |
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| `src/lib/shim/articles.ts` | Articles-specific queries | ⭐ HIGH |
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| `src/lib/shim/campaigns.ts` | Campaign-specific queries | MEDIUM |
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| `src/lib/shim/jobs.ts` | Generation jobs queries | MEDIUM |
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| `src/lib/shim/utils.ts` | Helper functions (pagination, filtering) | MEDIUM |
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### 2. API Routes (Secure Bridges)
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| File Path | Purpose | Priority |
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|-----------|---------|----------|
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| `src/pages/api/shim/sites/[action].ts` | Sites CRUD endpoints | ⭐ HIGH |
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| `src/pages/api/shim/articles/[action].ts` | Articles CRUD endpoints | ⭐ HIGH |
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| `src/pages/api/shim/campaigns/[action].ts` | Campaigns CRUD endpoints | MEDIUM |
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| `src/pages/api/shim/jobs/[action].ts` | Jobs CRUD endpoints | MEDIUM |
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| `src/pages/api/shim/health.ts` | Database health check | LOW |
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### 3. Example Components
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| File Path | Purpose | Priority |
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|-----------|---------|----------|
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| `src/components/shim/SitesList.tsx` | React component using shim API | ⭐ HIGH |
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| `src/components/shim/ArticleEditor.tsx` | Article CRUD using shim | ⭐ HIGH |
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| `src/pages/shim/sites.astro` | Demo page: SSR sites list | ⭐ HIGH |
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| `src/pages/shim/articles.astro` | Demo page: SSR articles list | MEDIUM |
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---
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## 📂 FILES TO USE (Existing Infrastructure)
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### Already Working - Use As-Is
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| File Path | What It Provides | How We'll Use It |
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|-----------|------------------|------------------|
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| `src/lib/db.ts` | PostgreSQL pool connection | Import `pool` for all queries |
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| `src/lib/schemas.ts` | TypeScript type definitions | Reference for table structures |
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| `astro.config.mjs` | Astro SSR config + Node adapter | Already configured for SSR |
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| `package.json` | Dependencies (`pg`, `@types/pg`) | Already has what we need |
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| `.env` | `DATABASE_URL` environment variable | Connection string source |
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### Existing Patterns to Mimic
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| File Path | Pattern to Copy | Why |
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|-----------|-----------------|-----|
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| `src/pages/api/god/[...action].ts` | Token validation, error handling | Security model |
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| `src/lib/directus/client.ts` | Query abstraction pattern | Structure for shim layer |
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| `src/components/admin/sites/SitesManager.tsx` | TanStack Query usage | Client-side data fetching |
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---
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## 📂 FILES TO MODIFY (Minimal Changes)
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| File Path | Modification | Reason |
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|-----------|--------------|--------|
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| `src/lib/db.ts` | Add query helper functions | Convenience wrappers |
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| `.env` | Verify `DATABASE_URL` is set | Required for local dev |
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| `tsconfig.json` | Add shim types path alias | Easier imports |
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---
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## ✅ TASK LIST (Step-by-Step Implementation)
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### PHASE 1: Foundation (30 min)
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- [ ] **Task 1.1:** Create `src/lib/shim/types.ts`
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- Define interfaces: `Site`, `Article`, `Campaign`, `Job`
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- Match PostgreSQL schema from migrations
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- Export as named types
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- [ ] **Task 1.2:** Create `src/lib/shim/utils.ts`
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- `buildWhere()` - Convert filters to SQL WHERE clauses
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- `buildPagination()` - LIMIT/OFFSET helpers
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- `sanitizeInput()` - Basic SQL injection prevention
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- [ ] **Task 1.3:** Enhance `src/lib/db.ts`
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- Add `executeQuery<T>(sql: string, params: any[]): Promise<T[]>`
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- Add `executeOne<T>(sql: string, params: any[]): Promise<T | null>`
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- Add error logging
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### PHASE 2: Shim Query Builders (45 min)
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- [ ] **Task 2.1:** Create `src/lib/shim/sites.ts`
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```typescript
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export async function getSites(filters?: FilterOptions): Promise<Site[]>
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export async function getSiteById(id: string): Promise<Site | null>
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export async function createSite(data: Partial<Site>): Promise<Site>
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export async function updateSite(id: string, data: Partial<Site>): Promise<Site>
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export async function deleteSite(id: string): Promise<boolean>
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```
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- [ ] **Task 2.2:** Create `src/lib/shim/articles.ts`
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- Same CRUD pattern as sites
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- Add `getArticlesByStatus(status: string)`
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- Add `getArticlesBySite(siteId: string)`
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- [ ] **Task 2.3:** Create `src/lib/shim/campaigns.ts`
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- Campaign CRUD operations
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- `getActiveCampaigns()`
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- [ ] **Task 2.4:** Create `src/lib/shim/jobs.ts`
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- Job queue queries
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- `getJobsByStatus(status: string)`
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### PHASE 3: API Routes (Secure Bridges) (60 min)
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- [ ] **Task 3.1:** Create `src/pages/api/shim/sites/list.ts`
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```typescript
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// GET /api/shim/sites/list?limit=10&offset=0
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import { pool } from '@/lib/db';
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import { getSites } from '@/lib/shim/sites';
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export async function GET({ request }) {
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// 1. Validate token (copy from /api/god/)
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// 2. Parse query params
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// 3. Call getSites()
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// 4. Return JSON
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}
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```
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- [ ] **Task 3.2:** Create `src/pages/api/shim/sites/[id].ts`
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- GET: Fetch single site
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- PUT: Update site
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- DELETE: Delete site
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- [ ] **Task 3.3:** Create `src/pages/api/shim/sites/create.ts`
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- POST: Create new site
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- Validate required fields
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- Return created site with ID
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- [ ] **Task 3.4:** Repeat for articles (`/api/shim/articles/*`)
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- [ ] **Task 3.5:** Add token validation middleware
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- Extract from existing `/api/god/` pattern
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- Check `GOD_MODE_TOKEN` or custom token
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### PHASE 4: Server-Side Pages (SSR Demo) (30 min)
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- [ ] **Task 4.1:** Create `src/pages/shim/sites.astro`
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```astro
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---
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import { getSites } from '@/lib/shim/sites';
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const sites = await getSites({ limit: 50 });
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---
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<h1>Sites ({sites.length})</h1>
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<ul>
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{sites.map(site => <li>{site.domain}</li>)}
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</ul>
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```
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- [ ] **Task 4.2:** Create `src/pages/shim/articles.astro`
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- Similar pattern for articles
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- Show article count, recent articles
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- [ ] **Task 4.3:** Create `src/pages/shim/index.astro`
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- Dashboard showing counts from all tables
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- Demo of multi-table queries in one page
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### PHASE 5: Client-Side Components (React + TanStack Query) (45 min)
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- [ ] **Task 5.1:** Create `src/components/shim/SitesList.tsx`
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```typescript
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import { useQuery } from '@tanstack/react-query';
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export default function SitesList() {
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const { data: sites } = useQuery({
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queryKey: ['shim-sites'],
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queryFn: () => fetch('/api/shim/sites/list').then(r => r.json())
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});
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return <ul>{sites?.map(...)}</ul>;
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}
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```
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- [ ] **Task 5.2:** Create `src/components/shim/ArticleEditor.tsx`
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- Form for creating/editing articles
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- Uses `useMutation` for POST/PUT
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- Calls `/api/shim/articles/[id]`
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- [ ] **Task 5.3:** Add components to demo pages
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- Wire `SitesList` to `/shim/sites.astro`
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- Make it `client:load` hydrated
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### PHASE 6: Testing & Security (30 min)
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- [ ] **Task 6.1:** Test SSR pages locally
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- Visit `/shim/sites` - should load instantly with data
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- Verify no database credentials in browser
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- [ ] **Task 6.2:** Test API routes
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- `curl http://localhost:4321/api/shim/sites/list`
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- Verify token requirement works
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- [ ] **Task 6.3:** Security audit
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- Ensure no SQL injection vulnerabilities
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- Verify token validation on all endpoints
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- Check that `DATABASE_URL` not exposed
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- [ ] **Task 6.4:** Performance test
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- Query 1000+ sites
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- Check connection pool usage
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- Monitor memory with large datasets
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---
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## 🔧 DETAILED EXAMPLE: Sites Table Implementation
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### Step 1: Type Definition (`src/lib/shim/types.ts`)
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```typescript
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export interface Site {
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id: string;
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domain: string;
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status: 'active' | 'inactive' | 'pending';
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site_url: string;
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site_wpjson: string;
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created_at: Date;
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updated_at: Date;
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}
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export interface FilterOptions {
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limit?: number;
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offset?: number;
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status?: string;
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search?: string;
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}
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```
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### Step 2: Query Builder (`src/lib/shim/sites.ts`)
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```typescript
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import { pool } from '@/lib/db';
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import type { Site, FilterOptions } from './types';
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export async function getSites(options: FilterOptions = {}): Promise<Site[]> {
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const { limit = 50, offset = 0, status, search } = options;
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let sql = 'SELECT * FROM sites WHERE 1=1';
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const params: any[] = [];
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let paramIndex = 1;
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if (status) {
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sql += ` AND status = $${paramIndex++}`;
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params.push(status);
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}
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if (search) {
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sql += ` AND domain ILIKE $${paramIndex++}`;
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params.push(`%${search}%`);
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}
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sql += ` ORDER BY created_at DESC LIMIT $${paramIndex++} OFFSET $${paramIndex++}`;
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params.push(limit, offset);
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const { rows } = await pool.query<Site>(sql, params);
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return rows;
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}
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export async function getSiteById(id: string): Promise<Site | null> {
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const { rows } = await pool.query<Site>(
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'SELECT * FROM sites WHERE id = $1',
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[id]
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);
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return rows[0] || null;
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}
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export async function createSite(data: Partial<Site>): Promise<Site> {
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const { rows } = await pool.query<Site>(
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`INSERT INTO sites (domain, status, site_url, site_wpjson)
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VALUES ($1, $2, $3, $4)
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RETURNING *`,
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[data.domain, data.status || 'pending', data.site_url, data.site_wpjson]
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);
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return rows[0];
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}
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export async function updateSite(id: string, data: Partial<Site>): Promise<Site> {
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const fields: string[] = [];
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const values: any[] = [];
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let paramIndex = 1;
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Object.entries(data).forEach(([key, value]) => {
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if (value !== undefined && key !== 'id') {
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fields.push(`${key} = $${paramIndex++}`);
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values.push(value);
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}
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});
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values.push(id);
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const { rows } = await pool.query<Site>(
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`UPDATE sites SET ${fields.join(', ')}, updated_at = NOW()
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WHERE id = $${paramIndex}
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RETURNING *`,
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values
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);
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return rows[0];
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}
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export async function deleteSite(id: string): Promise<boolean> {
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const result = await pool.query('DELETE FROM sites WHERE id = $1', [id]);
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return result.rowCount ? result.rowCount > 0 : false;
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}
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```
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### Step 3: API Route (`src/pages/api/shim/sites/list.ts`)
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```typescript
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import type { APIRoute } from 'astro';
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import { getSites } from '@/lib/shim/sites';
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export const GET: APIRoute = async ({ request, url }) => {
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try {
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// 1. Token validation (optional for read operations)
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const token = request.headers.get('Authorization')?.replace('Bearer ', '');
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if (!token || token !== import.meta.env.GOD_MODE_TOKEN) {
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return new Response(JSON.stringify({ error: 'Unauthorized' }), {
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status: 401,
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headers: { 'Content-Type': 'application/json' }
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});
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}
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// 2. Parse query params
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const limit = parseInt(url.searchParams.get('limit') || '50');
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const offset = parseInt(url.searchParams.get('offset') || '0');
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const status = url.searchParams.get('status') || undefined;
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const search = url.searchParams.get('search') || undefined;
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// 3. Execute query
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const sites = await getSites({ limit, offset, status, search });
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// 4. Return JSON
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return new Response(JSON.stringify({ sites, count: sites.length }), {
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status: 200,
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headers: { 'Content-Type': 'application/json' }
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});
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} catch (error) {
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console.error('API Error:', error);
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return new Response(JSON.stringify({ error: 'Internal Server Error' }), {
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status: 500,
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headers: { 'Content-Type': 'application/json' }
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});
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}
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};
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```
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### Step 4: SSR Page (`src/pages/shim/sites.astro`)
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```astro
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---
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import AdminLayout from '@/layouts/AdminLayout.astro';
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import { getSites } from '@/lib/shim/sites';
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// Server-side query - runs before HTML is sent
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const sites = await getSites({ limit: 100 });
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---
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<AdminLayout title="Sites (Direct DB)">
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<h1 class="text-3xl font-bold text-white mb-4">Sites ({sites.length})</h1>
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<div class="space-y-2">
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{sites.map(site => (
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<div class="p-4 bg-slate-800 rounded-lg">
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<h3 class="text-white font-semibold">{site.domain}</h3>
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<p class="text-slate-400 text-sm">{site.site_url}</p>
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<span class={`text-xs px-2 py-1 rounded ${
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site.status === 'active' ? 'bg-green-500/20 text-green-400' : 'bg-gray-500/20 text-gray-400'
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}`}>
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{site.status}
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</span>
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</div>
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))}
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</div>
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</AdminLayout>
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```
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### Step 5: React Component (`src/components/shim/SitesList.tsx`)
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```typescript
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import React from 'react';
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import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
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import type { Site } from '@/lib/shim/types';
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export default function SitesList() {
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const queryClient = useQueryClient();
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const { data, isLoading } = useQuery({
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queryKey: ['shim-sites'],
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queryFn: async () => {
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const response = await fetch('/api/shim/sites/list', {
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headers: {
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'Authorization': `Bearer ${import.meta.env.PUBLIC_GOD_MODE_TOKEN}`
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}
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});
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return response.json();
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}
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||||
});
|
||||
|
||||
const deleteMutation = useMutation({
|
||||
mutationFn: async (id: string) => {
|
||||
await fetch(`/api/shim/sites/${id}`, {
|
||||
method: 'DELETE',
|
||||
headers: {
|
||||
'Authorization': `Bearer ${import.meta.env.PUBLIC_GOD_MODE_TOKEN}`
|
||||
}
|
||||
});
|
||||
},
|
||||
onSuccess: () => {
|
||||
queryClient.invalidateQueries({ queryKey: ['shim-sites'] });
|
||||
}
|
||||
});
|
||||
|
||||
if (isLoading) return <div>Loading...</div>;
|
||||
|
||||
return (
|
||||
<div className="space-y-2">
|
||||
{data?.sites?.map((site: Site) => (
|
||||
<div key={site.id} className="p-4 bg-slate-800 rounded-lg flex justify-between items-center">
|
||||
<div>
|
||||
<h3 className="text-white font-semibold">{site.domain}</h3>
|
||||
<p className="text-slate-400 text-sm">{site.site_url}</p>
|
||||
</div>
|
||||
<button
|
||||
onClick={() => deleteMutation.mutate(site.id)}
|
||||
className="px-3 py-1 bg-red-600 text-white rounded hover:bg-red-700"
|
||||
>
|
||||
Delete
|
||||
</button>
|
||||
</div>
|
||||
))}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 🔒 SECURITY CHECKLIST
|
||||
|
||||
- [ ] **Never** expose `DATABASE_URL` to client-side code
|
||||
- [ ] **Always** validate tokens in API routes
|
||||
- [ ] **Always** use parameterized queries (`$1`, `$2`) - never string concatenation
|
||||
- [ ] **Never** trust user input - sanitize before queries
|
||||
- [ ] **Use** connection pooling (already in `db.ts`)
|
||||
- [ ] **Limit** query results (default LIMIT 50)
|
||||
- [ ] **Log** all database errors server-side
|
||||
- [ ] **Test** for SQL injection vulnerabilities
|
||||
|
||||
---
|
||||
|
||||
## 🚀 DEPLOYMENT CHECKLIST
|
||||
|
||||
- [ ] Set `DATABASE_URL` environment variable in Coolify
|
||||
- [ ] Set `GOD_MODE_TOKEN` for API authentication
|
||||
- [ ] Verify Dockerfile builds with `pg` dependency
|
||||
- [ ] Test connection pool limits under load
|
||||
- [ ] Monitor database connection count
|
||||
- [ ] Set up database backups
|
||||
- [ ] Configure SSL for PostgreSQL connection (production)
|
||||
|
||||
---
|
||||
|
||||
## 📊 EXPECTED PERFORMANCE
|
||||
|
||||
| Operation | SSR (Server-Side) | API Route (Client-Side) |
|
||||
|-----------|-------------------|-------------------------|
|
||||
| Get 50 sites | ~10ms | ~50ms (includes HTTP) |
|
||||
| Create site | ~15ms | ~60ms |
|
||||
| Update site | ~12ms | ~55ms |
|
||||
| Complex join | ~50ms | ~100ms |
|
||||
|
||||
**Why SSR is faster:** No HTTP roundtrip, query executes before HTML is sent.
|
||||
|
||||
---
|
||||
|
||||
## 🎯 SUCCESS CRITERIA
|
||||
|
||||
1. ✅ Can view sites list on `/shim/sites` without any client-side API calls
|
||||
2. ✅ Can create/update/delete sites via React component using `/api/shim/sites/*`
|
||||
3. ✅ No database credentials visible in browser DevTools
|
||||
4. ✅ All queries use parameterized SQL (no injection risk)
|
||||
5. ✅ Connection pool stays under 20 connections
|
||||
6. ✅ Token validation works on all API endpoints
|
||||
7. ✅ SSR pages load in < 100ms with 1000+ records
|
||||
Reference in New Issue
Block a user