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<article class="md-content__inner md-typeset">
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<h1 id="dual-api-architecture">Dual API Architecture<a class="headerlink" href="#dual-api-architecture" title="Permanent link">&para;</a></h1>
<p>Changemaker Lite V2 uses a dual API architecture with Express.js for main features and Fastify for the media library microservice.</p>
<h2 id="why-dual-api">Why Dual API?<a class="headerlink" href="#why-dual-api" title="Permanent link">&para;</a></h2>
<h3 id="performance-isolation">Performance Isolation<a class="headerlink" href="#performance-isolation" title="Permanent link">&para;</a></h3>
<p>Media operations (video processing, large uploads) are isolated from core platform features:</p>
<ul>
<li><strong>Video uploads</strong> don't block campaign email sending</li>
<li><strong>Media job processing</strong> doesn't affect map rendering</li>
<li><strong>Large file transfers</strong> have separate connection pools</li>
</ul>
<h3 id="technology-evaluation">Technology Evaluation<a class="headerlink" href="#technology-evaluation" title="Permanent link">&para;</a></h3>
<p>V2 evaluates two popular Node.js frameworks side-by-side:</p>
<table>
<thead>
<tr>
<th>Feature</th>
<th>Express.js</th>
<th>Fastify</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Ecosystem</strong></td>
<td>Massive (15+ years)</td>
<td>Growing (7+ years)</td>
</tr>
<tr>
<td><strong>Performance</strong></td>
<td>Good</td>
<td>Excellent (2-3x faster)</td>
</tr>
<tr>
<td><strong>TypeScript</strong></td>
<td>Requires @types/*</td>
<td>Native support</td>
</tr>
<tr>
<td><strong>Middleware</strong></td>
<td>Industry standard</td>
<td>Plugin system</td>
</tr>
<tr>
<td><strong>Use Case</strong></td>
<td>General purpose</td>
<td>High-throughput APIs</td>
</tr>
</tbody>
</table>
<h3 id="independent-scaling">Independent Scaling<a class="headerlink" href="#independent-scaling" title="Permanent link">&para;</a></h3>
<p>Each API can scale independently:</p>
<ul>
<li><strong>Express API</strong> scales with user activity (campaigns, canvassing)</li>
<li><strong>Media API</strong> scales with video library size</li>
<li>Horizontal scaling: run multiple instances behind nginx load balancer</li>
</ul>
<h3 id="clear-service-boundaries">Clear Service Boundaries<a class="headerlink" href="#clear-service-boundaries" title="Permanent link">&para;</a></h3>
<p>Microservice preparation without full microservices complexity:</p>
<ul>
<li>Shared database (PostgreSQL 16)</li>
<li>Shared cache (Redis)</li>
<li>Separate codebases (<code>api/src/server.ts</code> vs <code>api/src/media-server.ts</code>)</li>
<li>Future: Could split into separate repositories/deployments</li>
</ul>
<h2 id="architecture-diagram">Architecture Diagram<a class="headerlink" href="#architecture-diagram" title="Permanent link">&para;</a></h2>
<pre class="mermaid"><code>graph TB
subgraph "Client Layer"
Browser[Web Browser]
Mobile[Mobile App]
end
subgraph "Proxy Layer"
Nginx[Nginx Reverse Proxy&lt;br/&gt;Port 80/443]
end
subgraph "API Layer"
Express[Express API&lt;br/&gt;Port 4000&lt;br/&gt;Prisma ORM&lt;br/&gt;27+ Models]
Fastify[Fastify Media API&lt;br/&gt;Port 4100&lt;br/&gt;Drizzle ORM&lt;br/&gt;Media Tables]
end
subgraph "Data Layer"
PG[(PostgreSQL 16&lt;br/&gt;changemaker_v2 DB)]
Redis[(Redis 7&lt;br/&gt;Cache + Queues)]
end
subgraph "External Services"
SMTP[SMTP Server]
Represent[Represent API]
Geocoding[Geocoding APIs]
Listmonk[Listmonk]
end
Browser --&gt; Nginx
Mobile --&gt; Nginx
Nginx --&gt;|/api/* except /api/media/*| Express
Nginx --&gt;|/api/media/*| Fastify
Express --&gt; PG
Express --&gt; Redis
Express --&gt; SMTP
Express --&gt; Represent
Express --&gt; Geocoding
Express --&gt; Listmonk
Fastify --&gt; PG
Fastify --&gt; Redis
style Express fill:#61dafb,stroke:#333,stroke-width:2px
style Fastify fill:#00d562,stroke:#333,stroke-width:2px
style PG fill:#336791,stroke:#333,stroke-width:2px
style Redis fill:#dc382d,stroke:#333,stroke-width:2px</code></pre>
<h2 id="express-api-main-features">Express API (Main Features)<a class="headerlink" href="#express-api-main-features" title="Permanent link">&para;</a></h2>
<h3 id="entry-point">Entry Point<a class="headerlink" href="#entry-point" title="Permanent link">&para;</a></h3>
<p><strong>File:</strong> <code>api/src/server.ts</code> (234 lines)</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="k">import</span><span class="w"> </span><span class="nx">express</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;express&#39;</span><span class="p">;</span>
</span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="k">import</span><span class="w"> </span><span class="nx">cors</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;cors&#39;</span><span class="p">;</span>
</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="k">import</span><span class="w"> </span><span class="nx">helmet</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;helmet&#39;</span><span class="p">;</span>
</span><span id="__span-0-4"><a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">errorHandler</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./middleware/error-handler&#39;</span><span class="p">;</span>
</span><span id="__span-0-5"><a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">authenticate</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./middleware/auth&#39;</span><span class="p">;</span>
</span><span id="__span-0-6"><a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">metricsMiddleware</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./utils/metrics&#39;</span><span class="p">;</span>
</span><span id="__span-0-7"><a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a>
</span><span id="__span-0-8"><a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a><span class="kd">const</span><span class="w"> </span><span class="nx">app</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">express</span><span class="p">();</span>
</span><span id="__span-0-9"><a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a>
</span><span id="__span-0-10"><a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a><span class="c1">// Global middleware</span>
</span><span id="__span-0-11"><a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">helmet</span><span class="p">());</span>
</span><span id="__span-0-12"><a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">cors</span><span class="p">({</span><span class="w"> </span><span class="nx">origin</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.CORS_ORIGIN</span><span class="p">,</span><span class="w"> </span><span class="nx">credentials</span><span class="o">:</span><span class="w"> </span><span class="kt">true</span><span class="w"> </span><span class="p">}));</span>
</span><span id="__span-0-13"><a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">express</span><span class="p">.</span><span class="nx">json</span><span class="p">({</span><span class="w"> </span><span class="nx">limit</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;50mb&#39;</span><span class="w"> </span><span class="p">}));</span>
</span><span id="__span-0-14"><a id="__codelineno-0-14" name="__codelineno-0-14" href="#__codelineno-0-14"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">metricsMiddleware</span><span class="p">);</span>
</span><span id="__span-0-15"><a id="__codelineno-0-15" name="__codelineno-0-15" href="#__codelineno-0-15"></a>
</span><span id="__span-0-16"><a id="__codelineno-0-16" name="__codelineno-0-16" href="#__codelineno-0-16"></a><span class="c1">// Health check (no auth)</span>
</span><span id="__span-0-17"><a id="__codelineno-0-17" name="__codelineno-0-17" href="#__codelineno-0-17"></a><span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">&#39;/api/health&#39;</span><span class="p">,</span><span class="w"> </span><span class="p">(</span><span class="nx">req</span><span class="p">,</span><span class="w"> </span><span class="nx">res</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-0-18"><a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a><span class="w"> </span><span class="nx">res</span><span class="p">.</span><span class="nx">json</span><span class="p">({</span><span class="w"> </span><span class="nx">status</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;healthy&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">timestamp</span><span class="o">:</span><span class="w"> </span><span class="kt">new</span><span class="w"> </span><span class="nb">Date</span><span class="p">().</span><span class="nx">toISOString</span><span class="p">()</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-0-19"><a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a><span class="p">});</span>
</span><span id="__span-0-20"><a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a>
</span><span id="__span-0-21"><a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a><span class="c1">// Metrics endpoint (no auth, for Prometheus)</span>
</span><span id="__span-0-22"><a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">&#39;/api/metrics&#39;</span><span class="p">,</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">req</span><span class="p">,</span><span class="w"> </span><span class="nx">res</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-0-23"><a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a><span class="w"> </span><span class="nx">res</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">&#39;Content-Type&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">register</span><span class="p">.</span><span class="nx">contentType</span><span class="p">);</span>
</span><span id="__span-0-24"><a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a><span class="w"> </span><span class="nx">res</span><span class="p">.</span><span class="nx">end</span><span class="p">(</span><span class="k">await</span><span class="w"> </span><span class="nx">register</span><span class="p">.</span><span class="nx">metrics</span><span class="p">());</span>
</span><span id="__span-0-25"><a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a><span class="p">});</span>
</span><span id="__span-0-26"><a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a>
</span><span id="__span-0-27"><a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a><span class="c1">// Route registration (40+ route groups)</span>
</span><span id="__span-0-28"><a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/auth&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">authRoutes</span><span class="p">);</span>
</span><span id="__span-0-29"><a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/users&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">authenticate</span><span class="p">,</span><span class="w"> </span><span class="nx">usersRoutes</span><span class="p">);</span>
</span><span id="__span-0-30"><a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/settings&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">authenticate</span><span class="p">,</span><span class="w"> </span><span class="nx">settingsRoutes</span><span class="p">);</span>
</span><span id="__span-0-31"><a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/campaigns&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">campaignsRoutes</span><span class="p">);</span><span class="w"> </span><span class="c1">// Public + admin routes</span>
</span><span id="__span-0-32"><a id="__codelineno-0-32" name="__codelineno-0-32" href="#__codelineno-0-32"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/representatives&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">representativesRoutes</span><span class="p">);</span>
</span><span id="__span-0-33"><a id="__codelineno-0-33" name="__codelineno-0-33" href="#__codelineno-0-33"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="s1">&#39;/api/responses&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">responsesRoutes</span><span class="p">);</span><span class="w"> </span><span class="c1">// Public + admin + moderation</span>
</span><span id="__span-0-34"><a id="__codelineno-0-34" name="__codelineno-0-34" href="#__codelineno-0-34"></a><span class="c1">// ... 35+ more route groups</span>
</span><span id="__span-0-35"><a id="__codelineno-0-35" name="__codelineno-0-35" href="#__codelineno-0-35"></a>
</span><span id="__span-0-36"><a id="__codelineno-0-36" name="__codelineno-0-36" href="#__codelineno-0-36"></a><span class="c1">// Global error handler (must be last)</span>
</span><span id="__span-0-37"><a id="__codelineno-0-37" name="__codelineno-0-37" href="#__codelineno-0-37"></a><span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">errorHandler</span><span class="p">);</span>
</span><span id="__span-0-38"><a id="__codelineno-0-38" name="__codelineno-0-38" href="#__codelineno-0-38"></a>
</span><span id="__span-0-39"><a id="__codelineno-0-39" name="__codelineno-0-39" href="#__codelineno-0-39"></a><span class="kd">const</span><span class="w"> </span><span class="nx">PORT</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">API_PORT</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="mf">4000</span><span class="p">;</span>
</span><span id="__span-0-40"><a id="__codelineno-0-40" name="__codelineno-0-40" href="#__codelineno-0-40"></a><span class="nx">app</span><span class="p">.</span><span class="nx">listen</span><span class="p">(</span><span class="nx">PORT</span><span class="p">,</span><span class="w"> </span><span class="p">()</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-0-41"><a id="__codelineno-0-41" name="__codelineno-0-41" href="#__codelineno-0-41"></a><span class="w"> </span><span class="nx">logger</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="sb">`Express API listening on port </span><span class="si">${</span><span class="nx">PORT</span><span class="si">}</span><span class="sb">`</span><span class="p">);</span>
</span><span id="__span-0-42"><a id="__codelineno-0-42" name="__codelineno-0-42" href="#__codelineno-0-42"></a><span class="p">});</span>
</span></code></pre></div>
<h3 id="key-features">Key Features<a class="headerlink" href="#key-features" title="Permanent link">&para;</a></h3>
<p><strong>14 Feature Modules:</strong></p>
<ol>
<li><strong>auth</strong> - JWT login, register, refresh, logout</li>
<li><strong>users</strong> - User CRUD with pagination + search</li>
<li><strong>settings</strong> - Site settings singleton</li>
<li><strong>campaigns</strong> - Campaign CRUD + public routes</li>
<li><strong>representatives</strong> - Represent API integration</li>
<li><strong>responses</strong> - Response wall + moderation + upvoting</li>
<li><strong>email-queue</strong> - BullMQ queue admin</li>
<li><strong>campaign-emails</strong> - Email tracking + stats</li>
<li><strong>postal-codes</strong> - Postal code cache</li>
<li><strong>locations</strong> - Location CRUD + geocoding + NAR import</li>
<li><strong>cuts</strong> - Cut (polygon) CRUD + spatial queries</li>
<li><strong>shifts</strong> - Shift CRUD + signups</li>
<li><strong>canvass</strong> - Volunteer canvassing (sessions, visits, routes)</li>
<li><strong>pages</strong> - Landing page builder (GrapesJS)</li>
</ol>
<p><strong>Plus:</strong> email-templates, listmonk, pangolin, docs, qr, services, observability</p>
<h3 id="architecture-pattern">Architecture Pattern<a class="headerlink" href="#architecture-pattern" title="Permanent link">&para;</a></h3>
<p><strong>Layered Structure:</strong></p>
<div class="language-text highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>api/src/modules/{module}/
</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a>├── {module}.routes.ts # Express router + middleware
</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a>├── {module}.service.ts # Business logic + database queries
</span><span id="__span-1-4"><a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a>├── {module}.schemas.ts # Zod validation schemas
</span><span id="__span-1-5"><a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a>└── {module}.types.ts # TypeScript interfaces (optional)
</span></code></pre></div>
<p><strong>Example: Campaign Module</strong></p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-2-1"><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="c1">// campaigns.routes.ts</span>
</span><span id="__span-2-2"><a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">Router</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;express&#39;</span><span class="p">;</span>
</span><span id="__span-2-3"><a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">validate</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;../../middleware/validate&#39;</span><span class="p">;</span>
</span><span id="__span-2-4"><a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">authenticate</span><span class="p">,</span><span class="w"> </span><span class="nx">requireRole</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;../../middleware/auth&#39;</span><span class="p">;</span>
</span><span id="__span-2-5"><a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">createCampaignSchema</span><span class="p">,</span><span class="w"> </span><span class="nx">updateCampaignSchema</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./campaigns.schemas&#39;</span><span class="p">;</span>
</span><span id="__span-2-6"><a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="k">import</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="kr">as</span><span class="w"> </span><span class="nx">campaignService</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./campaigns.service&#39;</span><span class="p">;</span>
</span><span id="__span-2-7"><a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a>
</span><span id="__span-2-8"><a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a><span class="kd">const</span><span class="w"> </span><span class="nx">router</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">Router</span><span class="p">();</span>
</span><span id="__span-2-9"><a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a>
</span><span id="__span-2-10"><a id="__codelineno-2-10" name="__codelineno-2-10" href="#__codelineno-2-10"></a><span class="c1">// Admin routes (auth required)</span>
</span><span id="__span-2-11"><a id="__codelineno-2-11" name="__codelineno-2-11" href="#__codelineno-2-11"></a><span class="nx">router</span><span class="p">.</span><span class="nx">post</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span>
</span><span id="__span-2-12"><a id="__codelineno-2-12" name="__codelineno-2-12" href="#__codelineno-2-12"></a><span class="w"> </span><span class="nx">authenticate</span><span class="p">,</span>
</span><span id="__span-2-13"><a id="__codelineno-2-13" name="__codelineno-2-13" href="#__codelineno-2-13"></a><span class="w"> </span><span class="nx">requireRole</span><span class="p">(</span><span class="s1">&#39;SUPER_ADMIN&#39;</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;INFLUENCE_ADMIN&#39;</span><span class="p">),</span>
</span><span id="__span-2-14"><a id="__codelineno-2-14" name="__codelineno-2-14" href="#__codelineno-2-14"></a><span class="w"> </span><span class="nx">validate</span><span class="p">(</span><span class="nx">createCampaignSchema</span><span class="p">),</span>
</span><span id="__span-2-15"><a id="__codelineno-2-15" name="__codelineno-2-15" href="#__codelineno-2-15"></a><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">req</span><span class="p">,</span><span class="w"> </span><span class="nx">res</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-2-16"><a id="__codelineno-2-16" name="__codelineno-2-16" href="#__codelineno-2-16"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">campaign</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">await</span><span class="w"> </span><span class="nx">campaignService</span><span class="p">.</span><span class="nx">createCampaign</span><span class="p">(</span><span class="nx">req</span><span class="p">.</span><span class="nx">body</span><span class="p">,</span><span class="w"> </span><span class="nx">req</span><span class="p">.</span><span class="nx">user</span><span class="o">!</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
</span><span id="__span-2-17"><a id="__codelineno-2-17" name="__codelineno-2-17" href="#__codelineno-2-17"></a><span class="w"> </span><span class="nx">res</span><span class="p">.</span><span class="nx">status</span><span class="p">(</span><span class="mf">201</span><span class="p">).</span><span class="nx">json</span><span class="p">(</span><span class="nx">campaign</span><span class="p">);</span>
</span><span id="__span-2-18"><a id="__codelineno-2-18" name="__codelineno-2-18" href="#__codelineno-2-18"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-2-19"><a id="__codelineno-2-19" name="__codelineno-2-19" href="#__codelineno-2-19"></a><span class="p">);</span>
</span><span id="__span-2-20"><a id="__codelineno-2-20" name="__codelineno-2-20" href="#__codelineno-2-20"></a>
</span><span id="__span-2-21"><a id="__codelineno-2-21" name="__codelineno-2-21" href="#__codelineno-2-21"></a><span class="c1">// Public routes (no auth)</span>
</span><span id="__span-2-22"><a id="__codelineno-2-22" name="__codelineno-2-22" href="#__codelineno-2-22"></a><span class="nx">router</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">&#39;/:id&#39;</span><span class="p">,</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">req</span><span class="p">,</span><span class="w"> </span><span class="nx">res</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-2-23"><a id="__codelineno-2-23" name="__codelineno-2-23" href="#__codelineno-2-23"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">campaign</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">await</span><span class="w"> </span><span class="nx">campaignService</span><span class="p">.</span><span class="nx">getCampaignById</span><span class="p">(</span><span class="nx">req</span><span class="p">.</span><span class="nx">params</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
</span><span id="__span-2-24"><a id="__codelineno-2-24" name="__codelineno-2-24" href="#__codelineno-2-24"></a><span class="w"> </span><span class="nx">res</span><span class="p">.</span><span class="nx">json</span><span class="p">(</span><span class="nx">campaign</span><span class="p">);</span>
</span><span id="__span-2-25"><a id="__codelineno-2-25" name="__codelineno-2-25" href="#__codelineno-2-25"></a><span class="p">});</span>
</span><span id="__span-2-26"><a id="__codelineno-2-26" name="__codelineno-2-26" href="#__codelineno-2-26"></a>
</span><span id="__span-2-27"><a id="__codelineno-2-27" name="__codelineno-2-27" href="#__codelineno-2-27"></a><span class="k">export</span><span class="w"> </span><span class="k">default</span><span class="w"> </span><span class="nx">router</span><span class="p">;</span>
</span></code></pre></div>
<h3 id="orm-prisma">ORM: Prisma<a class="headerlink" href="#orm-prisma" title="Permanent link">&para;</a></h3>
<p><strong>27+ Models</strong> in <code>api/prisma/schema.prisma</code>:</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-3-1"><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="nx">model</span><span class="w"> </span><span class="nx">Campaign</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-3-2"><a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="w"> </span><span class="nx">id</span><span class="w"> </span><span class="nb">String</span><span class="w"> </span><span class="kd">@id</span><span class="w"> </span><span class="kd">@default</span><span class="p">(</span><span class="nx">cuid</span><span class="p">())</span>
</span><span id="__span-3-3"><a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="w"> </span><span class="nx">slug</span><span class="w"> </span><span class="nb">String</span><span class="w"> </span><span class="kd">@unique</span>
</span><span id="__span-3-4"><a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span><span class="nx">title</span><span class="w"> </span><span class="nb">String</span>
</span><span id="__span-3-5"><a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="w"> </span><span class="nx">description</span><span class="w"> </span><span class="nb">String</span><span class="o">?</span><span class="w"> </span><span class="kd">@db</span><span class="p">.</span><span class="nx">Text</span>
</span><span id="__span-3-6"><a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span><span class="nx">emailSubject</span><span class="w"> </span><span class="nb">String</span>
</span><span id="__span-3-7"><a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="nx">emailBody</span><span class="w"> </span><span class="nb">String</span><span class="w"> </span><span class="kd">@db</span><span class="p">.</span><span class="nx">Text</span>
</span><span id="__span-3-8"><a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="nx">status</span><span class="w"> </span><span class="nx">CampaignStatus</span><span class="w"> </span><span class="kd">@default</span><span class="p">(</span><span class="nx">DRAFT</span><span class="p">)</span>
</span><span id="__span-3-9"><a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a>
</span><span id="__span-3-10"><a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="c1">// Feature flags</span>
</span><span id="__span-3-11"><a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="w"> </span><span class="nx">allowSmtpEmail</span><span class="w"> </span><span class="nb">Boolean</span><span class="w"> </span><span class="kd">@default</span><span class="p">(</span><span class="kc">true</span><span class="p">)</span>
</span><span id="__span-3-12"><a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="w"> </span><span class="nx">showResponseWall</span><span class="w"> </span><span class="nb">Boolean</span><span class="w"> </span><span class="kd">@default</span><span class="p">(</span><span class="kc">true</span><span class="p">)</span>
</span><span id="__span-3-13"><a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a>
</span><span id="__span-3-14"><a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a><span class="w"> </span><span class="c1">// Audit fields</span>
</span><span id="__span-3-15"><a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="w"> </span><span class="nx">createdByUserId</span><span class="w"> </span><span class="nb">String</span><span class="o">?</span>
</span><span id="__span-3-16"><a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="nx">createdByUser</span><span class="w"> </span><span class="nx">User</span><span class="o">?</span><span class="w"> </span><span class="kd">@relation</span><span class="p">(</span><span class="nx">fields</span><span class="o">:</span><span class="w"> </span><span class="p">[</span><span class="nx">createdByUserId</span><span class="p">],</span><span class="w"> </span><span class="nx">references</span><span class="o">:</span><span class="w"> </span><span class="p">[</span><span class="nx">id</span><span class="p">],</span><span class="w"> </span><span class="nx">onDelete</span><span class="o">:</span><span class="w"> </span><span class="kt">SetNull</span><span class="p">)</span>
</span><span id="__span-3-17"><a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a><span class="w"> </span><span class="nx">createdAt</span><span class="w"> </span><span class="nx">DateTime</span><span class="w"> </span><span class="kd">@default</span><span class="p">(</span><span class="nx">now</span><span class="p">())</span>
</span><span id="__span-3-18"><a id="__codelineno-3-18" name="__codelineno-3-18" href="#__codelineno-3-18"></a><span class="w"> </span><span class="nx">updatedAt</span><span class="w"> </span><span class="nx">DateTime</span><span class="w"> </span><span class="kd">@updatedAt</span>
</span><span id="__span-3-19"><a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a>
</span><span id="__span-3-20"><a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a><span class="w"> </span><span class="c1">// Relations</span>
</span><span id="__span-3-21"><a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="w"> </span><span class="nx">emails</span><span class="w"> </span><span class="nx">CampaignEmail</span><span class="p">[]</span>
</span><span id="__span-3-22"><a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a><span class="w"> </span><span class="nx">responses</span><span class="w"> </span><span class="nx">RepresentativeResponse</span><span class="p">[]</span>
</span><span id="__span-3-23"><a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="w"> </span><span class="nx">customRecipients</span><span class="w"> </span><span class="nx">CustomRecipient</span><span class="p">[]</span>
</span><span id="__span-3-24"><a id="__codelineno-3-24" name="__codelineno-3-24" href="#__codelineno-3-24"></a><span class="p">}</span>
</span></code></pre></div>
<p><strong>Connection Pooling:</strong></p>
<p>Prisma manages connection pool automatically:</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-4-1"><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="c1">// prisma/schema.prisma</span>
</span><span id="__span-4-2"><a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a><span class="nx">datasource</span><span class="w"> </span><span class="nx">db</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-4-3"><a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a><span class="w"> </span><span class="nx">provider</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s2">&quot;postgresql&quot;</span>
</span><span id="__span-4-4"><a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a><span class="w"> </span><span class="nx">url</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">env</span><span class="p">(</span><span class="s2">&quot;DATABASE_URL&quot;</span><span class="p">)</span>
</span><span id="__span-4-5"><a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a><span class="p">}</span>
</span><span id="__span-4-6"><a id="__codelineno-4-6" name="__codelineno-4-6" href="#__codelineno-4-6"></a>
</span><span id="__span-4-7"><a id="__codelineno-4-7" name="__codelineno-4-7" href="#__codelineno-4-7"></a><span class="c1">// Default pool size: 10 connections per instance</span>
</span><span id="__span-4-8"><a id="__codelineno-4-8" name="__codelineno-4-8" href="#__codelineno-4-8"></a><span class="c1">// Configure via DATABASE_URL: ?connection_limit=20</span>
</span></code></pre></div>
<h2 id="fastify-api-media-library">Fastify API (Media Library)<a class="headerlink" href="#fastify-api-media-library" title="Permanent link">&para;</a></h2>
<h3 id="entry-point_1">Entry Point<a class="headerlink" href="#entry-point_1" title="Permanent link">&para;</a></h3>
<p><strong>File:</strong> <code>api/src/media-server.ts</code> (104 lines)</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-5-1"><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="k">import</span><span class="w"> </span><span class="nx">Fastify</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;fastify&#39;</span><span class="p">;</span>
</span><span id="__span-5-2"><a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="k">import</span><span class="w"> </span><span class="nx">cors</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;@fastify/cors&#39;</span><span class="p">;</span>
</span><span id="__span-5-3"><a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="k">import</span><span class="w"> </span><span class="nx">helmet</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;@fastify/helmet&#39;</span><span class="p">;</span>
</span><span id="__span-5-4"><a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">videosRoutes</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./modules/media/videos/videos.routes&#39;</span><span class="p">;</span>
</span><span id="__span-5-5"><a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">sharedMediaRoutes</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./modules/media/shared-media/shared-media.routes&#39;</span><span class="p">;</span>
</span><span id="__span-5-6"><a id="__codelineno-5-6" name="__codelineno-5-6" href="#__codelineno-5-6"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">jobsRoutes</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./modules/media/jobs/jobs.routes&#39;</span><span class="p">;</span>
</span><span id="__span-5-7"><a id="__codelineno-5-7" name="__codelineno-5-7" href="#__codelineno-5-7"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">reactionsRoutes</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./modules/media/reactions/reactions.routes&#39;</span><span class="p">;</span>
</span><span id="__span-5-8"><a id="__codelineno-5-8" name="__codelineno-5-8" href="#__codelineno-5-8"></a>
</span><span id="__span-5-9"><a id="__codelineno-5-9" name="__codelineno-5-9" href="#__codelineno-5-9"></a><span class="kd">const</span><span class="w"> </span><span class="nx">fastify</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">Fastify</span><span class="p">({</span>
</span><span id="__span-5-10"><a id="__codelineno-5-10" name="__codelineno-5-10" href="#__codelineno-5-10"></a><span class="w"> </span><span class="nx">logger</span><span class="o">:</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-5-11"><a id="__codelineno-5-11" name="__codelineno-5-11" href="#__codelineno-5-11"></a><span class="w"> </span><span class="nx">level</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.NODE_ENV</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="s1">&#39;production&#39;</span><span class="w"> </span><span class="o">?</span><span class="w"> </span><span class="s1">&#39;info&#39;</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;debug&#39;</span>
</span><span id="__span-5-12"><a id="__codelineno-5-12" name="__codelineno-5-12" href="#__codelineno-5-12"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-5-13"><a id="__codelineno-5-13" name="__codelineno-5-13" href="#__codelineno-5-13"></a><span class="p">});</span>
</span><span id="__span-5-14"><a id="__codelineno-5-14" name="__codelineno-5-14" href="#__codelineno-5-14"></a>
</span><span id="__span-5-15"><a id="__codelineno-5-15" name="__codelineno-5-15" href="#__codelineno-5-15"></a><span class="c1">// Plugins</span>
</span><span id="__span-5-16"><a id="__codelineno-5-16" name="__codelineno-5-16" href="#__codelineno-5-16"></a><span class="k">await</span><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">cors</span><span class="p">,</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-5-17"><a id="__codelineno-5-17" name="__codelineno-5-17" href="#__codelineno-5-17"></a><span class="w"> </span><span class="nx">origin</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.CORS_ORIGIN</span><span class="p">,</span>
</span><span id="__span-5-18"><a id="__codelineno-5-18" name="__codelineno-5-18" href="#__codelineno-5-18"></a><span class="w"> </span><span class="nx">credentials</span><span class="o">:</span><span class="w"> </span><span class="kt">true</span>
</span><span id="__span-5-19"><a id="__codelineno-5-19" name="__codelineno-5-19" href="#__codelineno-5-19"></a><span class="p">});</span>
</span><span id="__span-5-20"><a id="__codelineno-5-20" name="__codelineno-5-20" href="#__codelineno-5-20"></a><span class="k">await</span><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">helmet</span><span class="p">);</span>
</span><span id="__span-5-21"><a id="__codelineno-5-21" name="__codelineno-5-21" href="#__codelineno-5-21"></a>
</span><span id="__span-5-22"><a id="__codelineno-5-22" name="__codelineno-5-22" href="#__codelineno-5-22"></a><span class="c1">// Health check</span>
</span><span id="__span-5-23"><a id="__codelineno-5-23" name="__codelineno-5-23" href="#__codelineno-5-23"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">&#39;/health&#39;</span><span class="p">,</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">request</span><span class="p">,</span><span class="w"> </span><span class="nx">reply</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-5-24"><a id="__codelineno-5-24" name="__codelineno-5-24" href="#__codelineno-5-24"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">status</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;healthy&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">timestamp</span><span class="o">:</span><span class="w"> </span><span class="kt">new</span><span class="w"> </span><span class="nb">Date</span><span class="p">().</span><span class="nx">toISOString</span><span class="p">()</span><span class="w"> </span><span class="p">};</span>
</span><span id="__span-5-25"><a id="__codelineno-5-25" name="__codelineno-5-25" href="#__codelineno-5-25"></a><span class="p">});</span>
</span><span id="__span-5-26"><a id="__codelineno-5-26" name="__codelineno-5-26" href="#__codelineno-5-26"></a>
</span><span id="__span-5-27"><a id="__codelineno-5-27" name="__codelineno-5-27" href="#__codelineno-5-27"></a><span class="c1">// Route registration</span>
</span><span id="__span-5-28"><a id="__codelineno-5-28" name="__codelineno-5-28" href="#__codelineno-5-28"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">videosRoutes</span><span class="p">,</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">prefix</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;/api/media/videos&#39;</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-5-29"><a id="__codelineno-5-29" name="__codelineno-5-29" href="#__codelineno-5-29"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">sharedMediaRoutes</span><span class="p">,</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">prefix</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;/api/media/shared&#39;</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-5-30"><a id="__codelineno-5-30" name="__codelineno-5-30" href="#__codelineno-5-30"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">jobsRoutes</span><span class="p">,</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">prefix</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;/api/media/jobs&#39;</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-5-31"><a id="__codelineno-5-31" name="__codelineno-5-31" href="#__codelineno-5-31"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">register</span><span class="p">(</span><span class="nx">reactionsRoutes</span><span class="p">,</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">prefix</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;/api/media/reactions&#39;</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-5-32"><a id="__codelineno-5-32" name="__codelineno-5-32" href="#__codelineno-5-32"></a>
</span><span id="__span-5-33"><a id="__codelineno-5-33" name="__codelineno-5-33" href="#__codelineno-5-33"></a><span class="kd">const</span><span class="w"> </span><span class="nx">PORT</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">Number</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">MEDIA_API_PORT</span><span class="p">)</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="mf">4100</span><span class="p">;</span>
</span><span id="__span-5-34"><a id="__codelineno-5-34" name="__codelineno-5-34" href="#__codelineno-5-34"></a><span class="k">await</span><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">listen</span><span class="p">({</span><span class="w"> </span><span class="nx">port</span><span class="o">:</span><span class="w"> </span><span class="kt">PORT</span><span class="p">,</span><span class="w"> </span><span class="nx">host</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;0.0.0.0&#39;</span><span class="w"> </span><span class="p">});</span>
</span><span id="__span-5-35"><a id="__codelineno-5-35" name="__codelineno-5-35" href="#__codelineno-5-35"></a><span class="nx">fastify</span><span class="p">.</span><span class="nx">log</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="sb">`Fastify Media API listening on port </span><span class="si">${</span><span class="nx">PORT</span><span class="si">}</span><span class="sb">`</span><span class="p">);</span>
</span></code></pre></div>
<h3 id="key-features_1">Key Features<a class="headerlink" href="#key-features_1" title="Permanent link">&para;</a></h3>
<p><strong>4 Feature Modules:</strong></p>
<ol>
<li><strong>videos</strong> - Video CRUD, metadata, tags, deduplication</li>
<li><strong>shared-media</strong> - Public gallery categories (videos, curated, compilations, etc.)</li>
<li><strong>jobs</strong> - Job queue monitoring (pending, running, completed, failed)</li>
<li><strong>reactions</strong> - Reaction system (6 standard emojis: like, love, laugh, wow, sad, angry)</li>
</ol>
<h3 id="architecture-pattern_1">Architecture Pattern<a class="headerlink" href="#architecture-pattern_1" title="Permanent link">&para;</a></h3>
<p><strong>Plugin-Based:</strong></p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-6-1"><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a><span class="c1">// videos.routes.ts</span>
</span><span id="__span-6-2"><a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">FastifyPluginAsync</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;fastify&#39;</span><span class="p">;</span>
</span><span id="__span-6-3"><a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">verifyJWT</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;../../middleware/auth&#39;</span><span class="p">;</span>
</span><span id="__span-6-4"><a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">getVideosSchema</span><span class="p">,</span><span class="w"> </span><span class="nx">createVideoSchema</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;./videos.schemas&#39;</span><span class="p">;</span>
</span><span id="__span-6-5"><a id="__codelineno-6-5" name="__codelineno-6-5" href="#__codelineno-6-5"></a>
</span><span id="__span-6-6"><a id="__codelineno-6-6" name="__codelineno-6-6" href="#__codelineno-6-6"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">videosRoutes</span><span class="o">:</span><span class="w"> </span><span class="kt">FastifyPluginAsync</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">fastify</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-6-7"><a id="__codelineno-6-7" name="__codelineno-6-7" href="#__codelineno-6-7"></a><span class="w"> </span><span class="c1">// Middleware: JWT verification</span>
</span><span id="__span-6-8"><a id="__codelineno-6-8" name="__codelineno-6-8" href="#__codelineno-6-8"></a><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">addHook</span><span class="p">(</span><span class="s1">&#39;onRequest&#39;</span><span class="p">,</span><span class="w"> </span><span class="nx">verifyJWT</span><span class="p">);</span>
</span><span id="__span-6-9"><a id="__codelineno-6-9" name="__codelineno-6-9" href="#__codelineno-6-9"></a>
</span><span id="__span-6-10"><a id="__codelineno-6-10" name="__codelineno-6-10" href="#__codelineno-6-10"></a><span class="w"> </span><span class="c1">// GET /api/media/videos</span>
</span><span id="__span-6-11"><a id="__codelineno-6-11" name="__codelineno-6-11" href="#__codelineno-6-11"></a><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-6-12"><a id="__codelineno-6-12" name="__codelineno-6-12" href="#__codelineno-6-12"></a><span class="w"> </span><span class="nx">schema</span><span class="o">:</span><span class="w"> </span><span class="kt">getVideosSchema</span><span class="p">,</span>
</span><span id="__span-6-13"><a id="__codelineno-6-13" name="__codelineno-6-13" href="#__codelineno-6-13"></a><span class="w"> </span><span class="nx">handler</span><span class="o">:</span><span class="w"> </span><span class="kt">async</span><span class="w"> </span><span class="p">(</span><span class="nx">request</span><span class="p">,</span><span class="w"> </span><span class="nx">reply</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-6-14"><a id="__codelineno-6-14" name="__codelineno-6-14" href="#__codelineno-6-14"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">videos</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">await</span><span class="w"> </span><span class="nx">getVideos</span><span class="p">(</span><span class="nx">request</span><span class="p">.</span><span class="nx">query</span><span class="p">);</span>
</span><span id="__span-6-15"><a id="__codelineno-6-15" name="__codelineno-6-15" href="#__codelineno-6-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">videos</span><span class="p">;</span>
</span><span id="__span-6-16"><a id="__codelineno-6-16" name="__codelineno-6-16" href="#__codelineno-6-16"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-6-17"><a id="__codelineno-6-17" name="__codelineno-6-17" href="#__codelineno-6-17"></a><span class="w"> </span><span class="p">});</span>
</span><span id="__span-6-18"><a id="__codelineno-6-18" name="__codelineno-6-18" href="#__codelineno-6-18"></a>
</span><span id="__span-6-19"><a id="__codelineno-6-19" name="__codelineno-6-19" href="#__codelineno-6-19"></a><span class="w"> </span><span class="c1">// POST /api/media/videos</span>
</span><span id="__span-6-20"><a id="__codelineno-6-20" name="__codelineno-6-20" href="#__codelineno-6-20"></a><span class="w"> </span><span class="nx">fastify</span><span class="p">.</span><span class="nx">post</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-6-21"><a id="__codelineno-6-21" name="__codelineno-6-21" href="#__codelineno-6-21"></a><span class="w"> </span><span class="nx">schema</span><span class="o">:</span><span class="w"> </span><span class="kt">createVideoSchema</span><span class="p">,</span>
</span><span id="__span-6-22"><a id="__codelineno-6-22" name="__codelineno-6-22" href="#__codelineno-6-22"></a><span class="w"> </span><span class="nx">handler</span><span class="o">:</span><span class="w"> </span><span class="kt">async</span><span class="w"> </span><span class="p">(</span><span class="nx">request</span><span class="p">,</span><span class="w"> </span><span class="nx">reply</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-6-23"><a id="__codelineno-6-23" name="__codelineno-6-23" href="#__codelineno-6-23"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">video</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">await</span><span class="w"> </span><span class="nx">createVideo</span><span class="p">(</span><span class="nx">request</span><span class="p">.</span><span class="nx">body</span><span class="p">);</span>
</span><span id="__span-6-24"><a id="__codelineno-6-24" name="__codelineno-6-24" href="#__codelineno-6-24"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">reply</span><span class="p">.</span><span class="nx">status</span><span class="p">(</span><span class="mf">201</span><span class="p">).</span><span class="nx">send</span><span class="p">(</span><span class="nx">video</span><span class="p">);</span>
</span><span id="__span-6-25"><a id="__codelineno-6-25" name="__codelineno-6-25" href="#__codelineno-6-25"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-6-26"><a id="__codelineno-6-26" name="__codelineno-6-26" href="#__codelineno-6-26"></a><span class="w"> </span><span class="p">});</span>
</span><span id="__span-6-27"><a id="__codelineno-6-27" name="__codelineno-6-27" href="#__codelineno-6-27"></a><span class="p">};</span>
</span></code></pre></div>
<h3 id="orm-drizzle">ORM: Drizzle<a class="headerlink" href="#orm-drizzle" title="Permanent link">&para;</a></h3>
<p><strong>Media Tables</strong> in <code>api/src/modules/media/db/schema.ts</code>:</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-7-1"><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">pgTable</span><span class="p">,</span><span class="w"> </span><span class="nx">serial</span><span class="p">,</span><span class="w"> </span><span class="nx">text</span><span class="p">,</span><span class="w"> </span><span class="nx">integer</span><span class="p">,</span><span class="w"> </span><span class="kt">boolean</span><span class="p">,</span><span class="w"> </span><span class="nx">timestamp</span><span class="p">,</span><span class="w"> </span><span class="nx">jsonb</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;drizzle-orm/pg-core&#39;</span><span class="p">;</span>
</span><span id="__span-7-2"><a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a>
</span><span id="__span-7-3"><a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">videos</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">pgTable</span><span class="p">(</span><span class="s1">&#39;videos&#39;</span><span class="p">,</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-7-4"><a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a><span class="w"> </span><span class="nx">id</span><span class="o">:</span><span class="w"> </span><span class="kt">serial</span><span class="p">(</span><span class="s1">&#39;id&#39;</span><span class="p">).</span><span class="nx">primaryKey</span><span class="p">(),</span>
</span><span id="__span-7-5"><a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a><span class="w"> </span><span class="nx">path</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;path&#39;</span><span class="p">).</span><span class="nx">unique</span><span class="p">().</span><span class="nx">notNull</span><span class="p">(),</span>
</span><span id="__span-7-6"><a id="__codelineno-7-6" name="__codelineno-7-6" href="#__codelineno-7-6"></a><span class="w"> </span><span class="nx">filename</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;filename&#39;</span><span class="p">).</span><span class="nx">notNull</span><span class="p">(),</span>
</span><span id="__span-7-7"><a id="__codelineno-7-7" name="__codelineno-7-7" href="#__codelineno-7-7"></a><span class="w"> </span><span class="nx">producer</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;producer&#39;</span><span class="p">),</span>
</span><span id="__span-7-8"><a id="__codelineno-7-8" name="__codelineno-7-8" href="#__codelineno-7-8"></a><span class="w"> </span><span class="nx">creator</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;creator&#39;</span><span class="p">),</span>
</span><span id="__span-7-9"><a id="__codelineno-7-9" name="__codelineno-7-9" href="#__codelineno-7-9"></a><span class="w"> </span><span class="nx">title</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;title&#39;</span><span class="p">),</span>
</span><span id="__span-7-10"><a id="__codelineno-7-10" name="__codelineno-7-10" href="#__codelineno-7-10"></a><span class="w"> </span><span class="nx">durationSeconds</span><span class="o">:</span><span class="w"> </span><span class="kt">integer</span><span class="p">(</span><span class="s1">&#39;duration_seconds&#39;</span><span class="p">),</span>
</span><span id="__span-7-11"><a id="__codelineno-7-11" name="__codelineno-7-11" href="#__codelineno-7-11"></a><span class="w"> </span><span class="nx">width</span><span class="o">:</span><span class="w"> </span><span class="kt">integer</span><span class="p">(</span><span class="s1">&#39;width&#39;</span><span class="p">),</span>
</span><span id="__span-7-12"><a id="__codelineno-7-12" name="__codelineno-7-12" href="#__codelineno-7-12"></a><span class="w"> </span><span class="nx">height</span><span class="o">:</span><span class="w"> </span><span class="kt">integer</span><span class="p">(</span><span class="s1">&#39;height&#39;</span><span class="p">),</span>
</span><span id="__span-7-13"><a id="__codelineno-7-13" name="__codelineno-7-13" href="#__codelineno-7-13"></a><span class="w"> </span><span class="nx">orientation</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;orientation&#39;</span><span class="p">),</span><span class="w"> </span><span class="c1">// &#39;landscape&#39; | &#39;portrait&#39; | &#39;square&#39;</span>
</span><span id="__span-7-14"><a id="__codelineno-7-14" name="__codelineno-7-14" href="#__codelineno-7-14"></a><span class="w"> </span><span class="nx">hasAudio</span><span class="o">:</span><span class="w"> </span><span class="kt">boolean</span><span class="p">(</span><span class="s1">&#39;has_audio&#39;</span><span class="p">).</span><span class="k">default</span><span class="p">(</span><span class="kc">true</span><span class="p">),</span>
</span><span id="__span-7-15"><a id="__codelineno-7-15" name="__codelineno-7-15" href="#__codelineno-7-15"></a><span class="w"> </span><span class="nx">fileSize</span><span class="o">:</span><span class="w"> </span><span class="kt">integer</span><span class="p">(</span><span class="s1">&#39;file_size&#39;</span><span class="p">),</span>
</span><span id="__span-7-16"><a id="__codelineno-7-16" name="__codelineno-7-16" href="#__codelineno-7-16"></a><span class="w"> </span><span class="nx">thumbnailPath</span><span class="o">:</span><span class="w"> </span><span class="kt">text</span><span class="p">(</span><span class="s1">&#39;thumbnail_path&#39;</span><span class="p">),</span>
</span><span id="__span-7-17"><a id="__codelineno-7-17" name="__codelineno-7-17" href="#__codelineno-7-17"></a><span class="w"> </span><span class="nx">tags</span><span class="o">:</span><span class="w"> </span><span class="kt">jsonb</span><span class="p">(</span><span class="s1">&#39;tags&#39;</span><span class="p">).</span><span class="nx">$type</span><span class="o">&lt;</span><span class="kt">string</span><span class="p">[]</span><span class="o">&gt;</span><span class="p">(),</span>
</span><span id="__span-7-18"><a id="__codelineno-7-18" name="__codelineno-7-18" href="#__codelineno-7-18"></a><span class="w"> </span><span class="nx">isValid</span><span class="o">:</span><span class="w"> </span><span class="kt">boolean</span><span class="p">(</span><span class="s1">&#39;is_valid&#39;</span><span class="p">).</span><span class="k">default</span><span class="p">(</span><span class="kc">true</span><span class="p">),</span>
</span><span id="__span-7-19"><a id="__codelineno-7-19" name="__codelineno-7-19" href="#__codelineno-7-19"></a><span class="w"> </span><span class="nx">createdAt</span><span class="o">:</span><span class="w"> </span><span class="kt">timestamp</span><span class="p">(</span><span class="s1">&#39;created_at&#39;</span><span class="p">).</span><span class="nx">defaultNow</span><span class="p">(),</span>
</span><span id="__span-7-20"><a id="__codelineno-7-20" name="__codelineno-7-20" href="#__codelineno-7-20"></a><span class="p">},</span><span class="w"> </span><span class="p">(</span><span class="nx">table</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">({</span>
</span><span id="__span-7-21"><a id="__codelineno-7-21" name="__codelineno-7-21" href="#__codelineno-7-21"></a><span class="w"> </span><span class="nx">orientationIdx</span><span class="o">:</span><span class="w"> </span><span class="kt">index</span><span class="p">(</span><span class="s1">&#39;idx_orientation&#39;</span><span class="p">).</span><span class="nx">on</span><span class="p">(</span><span class="nx">table</span><span class="p">.</span><span class="nx">orientation</span><span class="p">),</span>
</span><span id="__span-7-22"><a id="__codelineno-7-22" name="__codelineno-7-22" href="#__codelineno-7-22"></a><span class="w"> </span><span class="nx">producerIdx</span><span class="o">:</span><span class="w"> </span><span class="kt">index</span><span class="p">(</span><span class="s1">&#39;idx_producer&#39;</span><span class="p">).</span><span class="nx">on</span><span class="p">(</span><span class="nx">table</span><span class="p">.</span><span class="nx">producer</span><span class="p">),</span>
</span><span id="__span-7-23"><a id="__codelineno-7-23" name="__codelineno-7-23" href="#__codelineno-7-23"></a><span class="p">}));</span>
</span></code></pre></div>
<p><strong>Connection:</strong></p>
<p>Drizzle uses the same PostgreSQL connection pool:</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-8-1"><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">drizzle</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;drizzle-orm/node-postgres&#39;</span><span class="p">;</span>
</span><span id="__span-8-2"><a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="k">import</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="nx">Pool</span><span class="w"> </span><span class="p">}</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;pg&#39;</span><span class="p">;</span>
</span><span id="__span-8-3"><a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a>
</span><span id="__span-8-4"><a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a><span class="kd">const</span><span class="w"> </span><span class="nx">pool</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">Pool</span><span class="p">({</span>
</span><span id="__span-8-5"><a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="w"> </span><span class="nx">connectionString</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.DATABASE_URL</span><span class="p">,</span>
</span><span id="__span-8-6"><a id="__codelineno-8-6" name="__codelineno-8-6" href="#__codelineno-8-6"></a><span class="w"> </span><span class="nx">max</span><span class="o">:</span><span class="w"> </span><span class="kt">10</span>
</span><span id="__span-8-7"><a id="__codelineno-8-7" name="__codelineno-8-7" href="#__codelineno-8-7"></a><span class="p">});</span>
</span><span id="__span-8-8"><a id="__codelineno-8-8" name="__codelineno-8-8" href="#__codelineno-8-8"></a>
</span><span id="__span-8-9"><a id="__codelineno-8-9" name="__codelineno-8-9" href="#__codelineno-8-9"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">db</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">drizzle</span><span class="p">(</span><span class="nx">pool</span><span class="p">);</span>
</span></code></pre></div>
<h2 id="request-flow">Request Flow<a class="headerlink" href="#request-flow" title="Permanent link">&para;</a></h2>
<h3 id="public-campaign-email-submission">Public Campaign Email Submission<a class="headerlink" href="#public-campaign-email-submission" title="Permanent link">&para;</a></h3>
<pre class="mermaid"><code>sequenceDiagram
participant User as User Browser
participant Nginx
participant React as Admin GUI
participant Express as Express API
participant PG as PostgreSQL
participant Redis
participant BullMQ
participant SMTP
User-&gt;&gt;React: Visit /campaigns/123
React-&gt;&gt;Nginx: GET /campaigns/123
Nginx-&gt;&gt;React: Serve React app
React-&gt;&gt;Nginx: GET /api/campaigns/123
Nginx-&gt;&gt;Express: Forward to Express
Express-&gt;&gt;PG: SELECT campaign
PG--&gt;&gt;Express: Campaign data
Express--&gt;&gt;React: Campaign JSON
React--&gt;&gt;User: Render page
User-&gt;&gt;React: Submit email form
React-&gt;&gt;Nginx: POST /api/campaigns/123/send-email
Nginx-&gt;&gt;Express: Forward to Express
Express-&gt;&gt;Express: Rate limit check (30/hour)
Express-&gt;&gt;PG: INSERT CampaignEmail
Express-&gt;&gt;BullMQ: Enqueue job
BullMQ-&gt;&gt;Redis: Add job to queue
Express--&gt;&gt;React: Success response
React--&gt;&gt;User: "Email queued"
BullMQ-&gt;&gt;Express: Process job (worker)
Express-&gt;&gt;PG: SELECT email + campaign
Express-&gt;&gt;Express: Build SMTP message
Express-&gt;&gt;SMTP: Send email
SMTP--&gt;&gt;Express: Delivery confirmed
Express-&gt;&gt;PG: UPDATE status = SENT
Express-&gt;&gt;Redis: Increment cm_emails_sent_total</code></pre>
<h3 id="admin-media-upload">Admin Media Upload<a class="headerlink" href="#admin-media-upload" title="Permanent link">&para;</a></h3>
<pre class="mermaid"><code>sequenceDiagram
participant Admin as Admin Browser
participant Nginx
participant Fastify as Fastify Media API
participant PG as PostgreSQL
participant FS as File System
Admin-&gt;&gt;Nginx: POST /api/media/videos (10GB file)
Nginx-&gt;&gt;Fastify: Stream upload (no buffering)
Fastify-&gt;&gt;FS: Save to /media/videos/
Fastify-&gt;&gt;PG: INSERT video metadata
PG--&gt;&gt;Fastify: Video record
Fastify--&gt;&gt;Admin: { id, path, thumbnail }</code></pre>
<p><strong>Key Difference:</strong>
- Express handles small JSON payloads (campaigns, locations, users)
- Fastify handles large file uploads (streaming, no buffering)</p>
<h2 id="shared-resources">Shared Resources<a class="headerlink" href="#shared-resources" title="Permanent link">&para;</a></h2>
<h3 id="postgresql-database">PostgreSQL Database<a class="headerlink" href="#postgresql-database" title="Permanent link">&para;</a></h3>
<p><strong>Single Database, Multiple Schemas:</strong></p>
<ul>
<li><strong>Prisma Tables</strong> — Main schema (User, Campaign, Location, etc.)</li>
<li><strong>Drizzle Tables</strong> — Media schema (videos, jobs, reactions)</li>
</ul>
<p>Both ORMs connect to the same <code>changemaker_v2</code> database:</p>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-9-1"><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="nv">DATABASE_URL</span><span class="o">=</span>postgresql://changemaker:password@v2-postgres:5432/changemaker_v2
</span></code></pre></div>
<p><strong>No Conflicts:</strong>
- Prisma manages its own schema via migrations (<code>npx prisma migrate</code>)
- Drizzle manages media tables via <code>npx drizzle-kit push</code>
- Tables don't overlap (different prefixes)</p>
<h3 id="redis-cache">Redis Cache<a class="headerlink" href="#redis-cache" title="Permanent link">&para;</a></h3>
<p>Both APIs use Redis for:</p>
<ul>
<li><strong>Caching</strong> — Postal codes (Express), video metadata (Fastify)</li>
<li><strong>Rate Limiting</strong> — Redis-backed limits (Express: 30/hour, Fastify: 100/min)</li>
<li><strong>BullMQ Queues</strong> — Email queue (Express), job queue (Fastify)</li>
</ul>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-10-1"><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a><span class="c1">// Shared Redis connection</span>
</span><span id="__span-10-2"><a id="__codelineno-10-2" name="__codelineno-10-2" href="#__codelineno-10-2"></a><span class="k">import</span><span class="w"> </span><span class="nx">Redis</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;ioredis&#39;</span><span class="p">;</span>
</span><span id="__span-10-3"><a id="__codelineno-10-3" name="__codelineno-10-3" href="#__codelineno-10-3"></a>
</span><span id="__span-10-4"><a id="__codelineno-10-4" name="__codelineno-10-4" href="#__codelineno-10-4"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">redis</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">Redis</span><span class="p">({</span>
</span><span id="__span-10-5"><a id="__codelineno-10-5" name="__codelineno-10-5" href="#__codelineno-10-5"></a><span class="w"> </span><span class="nx">host</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;redis-changemaker&#39;</span><span class="p">,</span>
</span><span id="__span-10-6"><a id="__codelineno-10-6" name="__codelineno-10-6" href="#__codelineno-10-6"></a><span class="w"> </span><span class="nx">port</span><span class="o">:</span><span class="w"> </span><span class="kt">6379</span><span class="p">,</span>
</span><span id="__span-10-7"><a id="__codelineno-10-7" name="__codelineno-10-7" href="#__codelineno-10-7"></a><span class="w"> </span><span class="nx">password</span><span class="o">:</span><span class="w"> </span><span class="kt">process.env.REDIS_PASSWORD</span><span class="p">,</span>
</span><span id="__span-10-8"><a id="__codelineno-10-8" name="__codelineno-10-8" href="#__codelineno-10-8"></a><span class="w"> </span><span class="nx">maxRetriesPerRequest</span><span class="o">:</span><span class="w"> </span><span class="kt">3</span>
</span><span id="__span-10-9"><a id="__codelineno-10-9" name="__codelineno-10-9" href="#__codelineno-10-9"></a><span class="p">});</span>
</span></code></pre></div>
<h3 id="jwt-authentication">JWT Authentication<a class="headerlink" href="#jwt-authentication" title="Permanent link">&para;</a></h3>
<p>Both APIs verify the same JWT tokens:</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-11-1"><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="c1">// Express: api/src/middleware/auth.ts</span>
</span><span id="__span-11-2"><a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="k">import</span><span class="w"> </span><span class="nx">jwt</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;jsonwebtoken&#39;</span><span class="p">;</span>
</span><span id="__span-11-3"><a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a>
</span><span id="__span-11-4"><a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">authenticate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="nx">req</span><span class="p">,</span><span class="w"> </span><span class="nx">res</span><span class="p">,</span><span class="w"> </span><span class="nx">next</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-11-5"><a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">token</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">req</span><span class="p">.</span><span class="nx">headers</span><span class="p">.</span><span class="nx">authorization</span><span class="o">?</span><span class="p">.</span><span class="nx">split</span><span class="p">(</span><span class="s1">&#39; &#39;</span><span class="p">)[</span><span class="mf">1</span><span class="p">];</span>
</span><span id="__span-11-6"><a id="__codelineno-11-6" name="__codelineno-11-6" href="#__codelineno-11-6"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">payload</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">jwt</span><span class="p">.</span><span class="nx">verify</span><span class="p">(</span><span class="nx">token</span><span class="p">,</span><span class="w"> </span><span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">JWT_ACCESS_SECRET</span><span class="p">);</span>
</span><span id="__span-11-7"><a id="__codelineno-11-7" name="__codelineno-11-7" href="#__codelineno-11-7"></a><span class="w"> </span><span class="nx">req</span><span class="p">.</span><span class="nx">user</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">payload</span><span class="p">;</span><span class="w"> </span><span class="c1">// { id, email, role }</span>
</span><span id="__span-11-8"><a id="__codelineno-11-8" name="__codelineno-11-8" href="#__codelineno-11-8"></a><span class="w"> </span><span class="nx">next</span><span class="p">();</span>
</span><span id="__span-11-9"><a id="__codelineno-11-9" name="__codelineno-11-9" href="#__codelineno-11-9"></a><span class="p">};</span>
</span><span id="__span-11-10"><a id="__codelineno-11-10" name="__codelineno-11-10" href="#__codelineno-11-10"></a>
</span><span id="__span-11-11"><a id="__codelineno-11-11" name="__codelineno-11-11" href="#__codelineno-11-11"></a><span class="c1">// Fastify: api/src/modules/media/middleware/auth.ts</span>
</span><span id="__span-11-12"><a id="__codelineno-11-12" name="__codelineno-11-12" href="#__codelineno-11-12"></a><span class="k">import</span><span class="w"> </span><span class="nx">jwt</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;jsonwebtoken&#39;</span><span class="p">;</span>
</span><span id="__span-11-13"><a id="__codelineno-11-13" name="__codelineno-11-13" href="#__codelineno-11-13"></a>
</span><span id="__span-11-14"><a id="__codelineno-11-14" name="__codelineno-11-14" href="#__codelineno-11-14"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">verifyJWT</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">async</span><span class="w"> </span><span class="p">(</span><span class="nx">request</span><span class="p">,</span><span class="w"> </span><span class="nx">reply</span><span class="p">)</span><span class="w"> </span><span class="p">=&gt;</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-11-15"><a id="__codelineno-11-15" name="__codelineno-11-15" href="#__codelineno-11-15"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">token</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">request</span><span class="p">.</span><span class="nx">headers</span><span class="p">.</span><span class="nx">authorization</span><span class="o">?</span><span class="p">.</span><span class="nx">split</span><span class="p">(</span><span class="s1">&#39; &#39;</span><span class="p">)[</span><span class="mf">1</span><span class="p">];</span>
</span><span id="__span-11-16"><a id="__codelineno-11-16" name="__codelineno-11-16" href="#__codelineno-11-16"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">payload</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">jwt</span><span class="p">.</span><span class="nx">verify</span><span class="p">(</span><span class="nx">token</span><span class="p">,</span><span class="w"> </span><span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">JWT_ACCESS_SECRET</span><span class="p">);</span>
</span><span id="__span-11-17"><a id="__codelineno-11-17" name="__codelineno-11-17" href="#__codelineno-11-17"></a><span class="w"> </span><span class="nx">request</span><span class="p">.</span><span class="nx">user</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">payload</span><span class="p">;</span>
</span><span id="__span-11-18"><a id="__codelineno-11-18" name="__codelineno-11-18" href="#__codelineno-11-18"></a><span class="p">};</span>
</span></code></pre></div>
<p><strong>Shared Secret:</strong> <code>JWT_ACCESS_SECRET</code> environment variable</p>
<h2 id="nginx-routing">Nginx Routing<a class="headerlink" href="#nginx-routing" title="Permanent link">&para;</a></h2>
<h3 id="location-block-ordering">Location Block Ordering<a class="headerlink" href="#location-block-ordering" title="Permanent link">&para;</a></h3>
<p><strong>Critical:</strong> Media API location must come BEFORE general API location:</p>
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-12-1"><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="k">server</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-12-2"><a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="w"> </span><span class="kn">listen</span><span class="w"> </span><span class="mi">80</span><span class="p">;</span>
</span><span id="__span-12-3"><a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a><span class="w"> </span><span class="kn">server_name</span><span class="w"> </span><span class="s">api.cmlite.org</span><span class="p">;</span>
</span><span id="__span-12-4"><a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a>
</span><span id="__span-12-5"><a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a><span class="w"> </span><span class="c1"># Media API (longest prefix first)</span>
</span><span id="__span-12-6"><a id="__codelineno-12-6" name="__codelineno-12-6" href="#__codelineno-12-6"></a><span class="w"> </span><span class="kn">location</span><span class="w"> </span><span class="s">/api/media/</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-12-7"><a id="__codelineno-12-7" name="__codelineno-12-7" href="#__codelineno-12-7"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://changemaker-media-api:4100</span><span class="p">;</span>
</span><span id="__span-12-8"><a id="__codelineno-12-8" name="__codelineno-12-8" href="#__codelineno-12-8"></a><span class="w"> </span><span class="kn">client_max_body_size</span><span class="w"> </span><span class="s">10G</span><span class="p">;</span>
</span><span id="__span-12-9"><a id="__codelineno-12-9" name="__codelineno-12-9" href="#__codelineno-12-9"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-12-10"><a id="__codelineno-12-10" name="__codelineno-12-10" href="#__codelineno-12-10"></a>
</span><span id="__span-12-11"><a id="__codelineno-12-11" name="__codelineno-12-11" href="#__codelineno-12-11"></a><span class="w"> </span><span class="c1"># Express API (catch-all)</span>
</span><span id="__span-12-12"><a id="__codelineno-12-12" name="__codelineno-12-12" href="#__codelineno-12-12"></a><span class="w"> </span><span class="kn">location</span><span class="w"> </span><span class="s">/api/</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-12-13"><a id="__codelineno-12-13" name="__codelineno-12-13" href="#__codelineno-12-13"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://changemaker-v2-api:4000</span><span class="p">;</span>
</span><span id="__span-12-14"><a id="__codelineno-12-14" name="__codelineno-12-14" href="#__codelineno-12-14"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-12-15"><a id="__codelineno-12-15" name="__codelineno-12-15" href="#__codelineno-12-15"></a><span class="p">}</span>
</span></code></pre></div>
<p><strong>Why Order Matters:</strong></p>
<p>Nginx matches longest prefix first. If <code>/api/</code> came first, it would match <code>/api/media/videos</code> and route to Express (wrong).</p>
<h3 id="subdomain-routing-production">Subdomain Routing (Production)<a class="headerlink" href="#subdomain-routing-production" title="Permanent link">&para;</a></h3>
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-13-1"><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="c1"># Express API</span>
</span><span id="__span-13-2"><a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="k">server</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-13-3"><a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a><span class="w"> </span><span class="kn">listen</span><span class="w"> </span><span class="mi">80</span><span class="p">;</span>
</span><span id="__span-13-4"><a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a><span class="w"> </span><span class="kn">server_name</span><span class="w"> </span><span class="s">api.cmlite.org</span><span class="p">;</span>
</span><span id="__span-13-5"><a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a><span class="w"> </span><span class="kn">location</span><span class="w"> </span><span class="s">/</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-13-6"><a id="__codelineno-13-6" name="__codelineno-13-6" href="#__codelineno-13-6"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://changemaker-v2-api:4000</span><span class="p">;</span>
</span><span id="__span-13-7"><a id="__codelineno-13-7" name="__codelineno-13-7" href="#__codelineno-13-7"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-13-8"><a id="__codelineno-13-8" name="__codelineno-13-8" href="#__codelineno-13-8"></a><span class="p">}</span>
</span><span id="__span-13-9"><a id="__codelineno-13-9" name="__codelineno-13-9" href="#__codelineno-13-9"></a>
</span><span id="__span-13-10"><a id="__codelineno-13-10" name="__codelineno-13-10" href="#__codelineno-13-10"></a><span class="c1"># Fastify Media API</span>
</span><span id="__span-13-11"><a id="__codelineno-13-11" name="__codelineno-13-11" href="#__codelineno-13-11"></a><span class="k">server</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-13-12"><a id="__codelineno-13-12" name="__codelineno-13-12" href="#__codelineno-13-12"></a><span class="w"> </span><span class="kn">listen</span><span class="w"> </span><span class="mi">80</span><span class="p">;</span>
</span><span id="__span-13-13"><a id="__codelineno-13-13" name="__codelineno-13-13" href="#__codelineno-13-13"></a><span class="w"> </span><span class="kn">server_name</span><span class="w"> </span><span class="s">media.cmlite.org</span><span class="p">;</span>
</span><span id="__span-13-14"><a id="__codelineno-13-14" name="__codelineno-13-14" href="#__codelineno-13-14"></a><span class="w"> </span><span class="kn">location</span><span class="w"> </span><span class="s">/</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-13-15"><a id="__codelineno-13-15" name="__codelineno-13-15" href="#__codelineno-13-15"></a><span class="w"> </span><span class="kn">proxy_pass</span><span class="w"> </span><span class="s">http://changemaker-media-api:4100</span><span class="p">;</span>
</span><span id="__span-13-16"><a id="__codelineno-13-16" name="__codelineno-13-16" href="#__codelineno-13-16"></a><span class="w"> </span><span class="p">}</span>
</span><span id="__span-13-17"><a id="__codelineno-13-17" name="__codelineno-13-17" href="#__codelineno-13-17"></a><span class="p">}</span>
</span></code></pre></div>
<h2 id="performance-comparison">Performance Comparison<a class="headerlink" href="#performance-comparison" title="Permanent link">&para;</a></h2>
<h3 id="benchmarks-internal-testing">Benchmarks (Internal Testing)<a class="headerlink" href="#benchmarks-internal-testing" title="Permanent link">&para;</a></h3>
<p><strong>Simple GET Request (JSON response):</strong></p>
<table>
<thead>
<tr>
<th>Framework</th>
<th>Requests/sec</th>
<th>Latency p95</th>
<th>Memory</th>
</tr>
</thead>
<tbody>
<tr>
<td>Express</td>
<td>12,500</td>
<td>35ms</td>
<td>150MB</td>
</tr>
<tr>
<td>Fastify</td>
<td>28,000</td>
<td>15ms</td>
<td>120MB</td>
</tr>
</tbody>
</table>
<p><strong>Large Upload (1GB file):</strong></p>
<table>
<thead>
<tr>
<th>Framework</th>
<th>Upload Time</th>
<th>Memory Peak</th>
<th>CPU Usage</th>
</tr>
</thead>
<tbody>
<tr>
<td>Express</td>
<td>45s</td>
<td>450MB</td>
<td>85%</td>
</tr>
<tr>
<td>Fastify</td>
<td>38s</td>
<td>280MB</td>
<td>60%</td>
</tr>
</tbody>
</table>
<p><strong>Real-World Usage:</strong></p>
<ul>
<li>Express handles 95% of requests (campaigns, users, locations)</li>
<li>Fastify handles 5% of requests (video uploads, media library)</li>
<li>Both run comfortably on single-core containers</li>
</ul>
<h2 id="future-full-microservices">Future: Full Microservices<a class="headerlink" href="#future-full-microservices" title="Permanent link">&para;</a></h2>
<p>The dual API design prepares for future microservices migration:</p>
<h3 id="potential-split">Potential Split<a class="headerlink" href="#potential-split" title="Permanent link">&para;</a></h3>
<div class="language-text highlight"><pre><span></span><code><span id="__span-14-1"><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a>├── campaign-service/ # Express API (Influence module)
</span><span id="__span-14-2"><a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a>├── map-service/ # Express API (Map module)
</span><span id="__span-14-3"><a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a>├── media-service/ # Fastify API (Media module)
</span><span id="__span-14-4"><a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a>├── auth-service/ # Shared authentication
</span><span id="__span-14-5"><a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a>└── api-gateway/ # Nginx or Kong
</span></code></pre></div>
<h3 id="benefits">Benefits<a class="headerlink" href="#benefits" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>Independent deployment</strong> — Ship campaign features without redeploying map</li>
<li><strong>Technology flexibility</strong> — Use Go for high-throughput, Python for ML</li>
<li><strong>Team ownership</strong> — Separate teams own separate services</li>
<li><strong>Fault isolation</strong> — Media service crash doesn't affect campaigns</li>
</ul>
<h3 id="trade-offs">Trade-offs<a class="headerlink" href="#trade-offs" title="Permanent link">&para;</a></h3>
<ul>
<li><strong>Operational complexity</strong> — More containers, more monitoring</li>
<li><strong>Network latency</strong> — Inter-service calls over HTTP</li>
<li><strong>Data consistency</strong> — Distributed transactions harder</li>
<li><strong>Development overhead</strong> — Multiple repos, versioning</li>
</ul>
<p><strong>V2 Strategy:</strong> Keep dual API until scaling requires split (likely 10,000+ users).</p>
<h2 id="development-workflow">Development Workflow<a class="headerlink" href="#development-workflow" title="Permanent link">&para;</a></h2>
<h3 id="running-both-apis">Running Both APIs<a class="headerlink" href="#running-both-apis" title="Permanent link">&para;</a></h3>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-15-1"><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a><span class="c1"># Terminal 1: Express API</span>
</span><span id="__span-15-2"><a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a><span class="nb">cd</span><span class="w"> </span>api<span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span>npm<span class="w"> </span>run<span class="w"> </span>dev<span class="w"> </span><span class="c1"># Port 4000</span>
</span><span id="__span-15-3"><a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a>
</span><span id="__span-15-4"><a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a><span class="c1"># Terminal 2: Fastify Media API</span>
</span><span id="__span-15-5"><a id="__codelineno-15-5" name="__codelineno-15-5" href="#__codelineno-15-5"></a><span class="nb">cd</span><span class="w"> </span>api<span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span>npm<span class="w"> </span>run<span class="w"> </span>dev:media<span class="w"> </span><span class="c1"># Port 4100</span>
</span><span id="__span-15-6"><a id="__codelineno-15-6" name="__codelineno-15-6" href="#__codelineno-15-6"></a>
</span><span id="__span-15-7"><a id="__codelineno-15-7" name="__codelineno-15-7" href="#__codelineno-15-7"></a><span class="c1"># Terminal 3: Admin GUI</span>
</span><span id="__span-15-8"><a id="__codelineno-15-8" name="__codelineno-15-8" href="#__codelineno-15-8"></a><span class="nb">cd</span><span class="w"> </span>admin<span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span>npm<span class="w"> </span>run<span class="w"> </span>dev<span class="w"> </span><span class="c1"># Port 3000</span>
</span></code></pre></div>
<h3 id="docker-compose">Docker Compose<a class="headerlink" href="#docker-compose" title="Permanent link">&para;</a></h3>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-16-1"><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a><span class="c1"># Start both APIs</span>
</span><span id="__span-16-2"><a id="__codelineno-16-2" name="__codelineno-16-2" href="#__codelineno-16-2"></a>docker<span class="w"> </span>compose<span class="w"> </span>up<span class="w"> </span>-d<span class="w"> </span>api<span class="w"> </span>media-api
</span><span id="__span-16-3"><a id="__codelineno-16-3" name="__codelineno-16-3" href="#__codelineno-16-3"></a>
</span><span id="__span-16-4"><a id="__codelineno-16-4" name="__codelineno-16-4" href="#__codelineno-16-4"></a><span class="c1"># View logs</span>
</span><span id="__span-16-5"><a id="__codelineno-16-5" name="__codelineno-16-5" href="#__codelineno-16-5"></a>docker<span class="w"> </span>compose<span class="w"> </span>logs<span class="w"> </span>-f<span class="w"> </span>api
</span><span id="__span-16-6"><a id="__codelineno-16-6" name="__codelineno-16-6" href="#__codelineno-16-6"></a>docker<span class="w"> </span>compose<span class="w"> </span>logs<span class="w"> </span>-f<span class="w"> </span>media-api
</span><span id="__span-16-7"><a id="__codelineno-16-7" name="__codelineno-16-7" href="#__codelineno-16-7"></a>
</span><span id="__span-16-8"><a id="__codelineno-16-8" name="__codelineno-16-8" href="#__codelineno-16-8"></a><span class="c1"># Rebuild after dependency changes</span>
</span><span id="__span-16-9"><a id="__codelineno-16-9" name="__codelineno-16-9" href="#__codelineno-16-9"></a>docker<span class="w"> </span>compose<span class="w"> </span>build<span class="w"> </span>api<span class="w"> </span>media-api
</span><span id="__span-16-10"><a id="__codelineno-16-10" name="__codelineno-16-10" href="#__codelineno-16-10"></a>docker<span class="w"> </span>compose<span class="w"> </span>up<span class="w"> </span>-d<span class="w"> </span>api<span class="w"> </span>media-api
</span></code></pre></div>
<h2 id="monitoring">Monitoring<a class="headerlink" href="#monitoring" title="Permanent link">&para;</a></h2>
<p>Both APIs expose Prometheus metrics:</p>
<ul>
<li><strong>Express:</strong> <code>http://localhost:4000/api/metrics</code></li>
<li><strong>Fastify:</strong> <code>http://localhost:4100/metrics</code></li>
</ul>
<p><strong>Custom Metrics:</strong></p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-17-1"><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a><span class="c1">// Express: api/src/utils/metrics.ts</span>
</span><span id="__span-17-2"><a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a><span class="k">import</span><span class="w"> </span><span class="nx">client</span><span class="w"> </span><span class="kr">from</span><span class="w"> </span><span class="s1">&#39;prom-client&#39;</span><span class="p">;</span>
</span><span id="__span-17-3"><a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a>
</span><span id="__span-17-4"><a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">httpRequestTotal</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">client</span><span class="p">.</span><span class="nx">Counter</span><span class="p">({</span>
</span><span id="__span-17-5"><a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a><span class="w"> </span><span class="nx">name</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;http_request_total&#39;</span><span class="p">,</span>
</span><span id="__span-17-6"><a id="__codelineno-17-6" name="__codelineno-17-6" href="#__codelineno-17-6"></a><span class="w"> </span><span class="nx">help</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;Total HTTP requests&#39;</span><span class="p">,</span>
</span><span id="__span-17-7"><a id="__codelineno-17-7" name="__codelineno-17-7" href="#__codelineno-17-7"></a><span class="w"> </span><span class="nx">labelNames</span><span class="o">:</span><span class="w"> </span><span class="p">[</span><span class="s1">&#39;method&#39;</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;route&#39;</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;status&#39;</span><span class="p">]</span>
</span><span id="__span-17-8"><a id="__codelineno-17-8" name="__codelineno-17-8" href="#__codelineno-17-8"></a><span class="p">});</span>
</span><span id="__span-17-9"><a id="__codelineno-17-9" name="__codelineno-17-9" href="#__codelineno-17-9"></a>
</span><span id="__span-17-10"><a id="__codelineno-17-10" name="__codelineno-17-10" href="#__codelineno-17-10"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">emailsSentTotal</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">client</span><span class="p">.</span><span class="nx">Counter</span><span class="p">({</span>
</span><span id="__span-17-11"><a id="__codelineno-17-11" name="__codelineno-17-11" href="#__codelineno-17-11"></a><span class="w"> </span><span class="nx">name</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;cm_emails_sent_total&#39;</span><span class="p">,</span>
</span><span id="__span-17-12"><a id="__codelineno-17-12" name="__codelineno-17-12" href="#__codelineno-17-12"></a><span class="w"> </span><span class="nx">help</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;Total campaign emails sent&#39;</span>
</span><span id="__span-17-13"><a id="__codelineno-17-13" name="__codelineno-17-13" href="#__codelineno-17-13"></a><span class="p">});</span>
</span><span id="__span-17-14"><a id="__codelineno-17-14" name="__codelineno-17-14" href="#__codelineno-17-14"></a>
</span><span id="__span-17-15"><a id="__codelineno-17-15" name="__codelineno-17-15" href="#__codelineno-17-15"></a><span class="c1">// Fastify: api/src/modules/media/metrics.ts</span>
</span><span id="__span-17-16"><a id="__codelineno-17-16" name="__codelineno-17-16" href="#__codelineno-17-16"></a><span class="k">export</span><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">mediaUploadsTotal</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">client</span><span class="p">.</span><span class="nx">Counter</span><span class="p">({</span>
</span><span id="__span-17-17"><a id="__codelineno-17-17" name="__codelineno-17-17" href="#__codelineno-17-17"></a><span class="w"> </span><span class="nx">name</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;cm_media_uploads_total&#39;</span><span class="p">,</span>
</span><span id="__span-17-18"><a id="__codelineno-17-18" name="__codelineno-17-18" href="#__codelineno-17-18"></a><span class="w"> </span><span class="nx">help</span><span class="o">:</span><span class="w"> </span><span class="s1">&#39;Total media uploads&#39;</span><span class="p">,</span>
</span><span id="__span-17-19"><a id="__codelineno-17-19" name="__codelineno-17-19" href="#__codelineno-17-19"></a><span class="w"> </span><span class="nx">labelNames</span><span class="o">:</span><span class="w"> </span><span class="p">[</span><span class="s1">&#39;type&#39;</span><span class="p">]</span>
</span><span id="__span-17-20"><a id="__codelineno-17-20" name="__codelineno-17-20" href="#__codelineno-17-20"></a><span class="p">});</span>
</span></code></pre></div>
<p>Prometheus scrapes both endpoints every 15 seconds.</p>
<h2 id="troubleshooting">Troubleshooting<a class="headerlink" href="#troubleshooting" title="Permanent link">&para;</a></h2>
<h3 id="media-api-returns-404">Media API Returns 404<a class="headerlink" href="#media-api-returns-404" title="Permanent link">&para;</a></h3>
<p><strong>Cause:</strong> Nginx routing issue (order of location blocks).</p>
<p><strong>Fix:</strong> Ensure <code>/api/media/</code> comes BEFORE <code>/api/</code> in nginx config.</p>
<h3 id="large-upload-fails-413">Large Upload Fails (413)<a class="headerlink" href="#large-upload-fails-413" title="Permanent link">&para;</a></h3>
<p><strong>Cause:</strong> <code>client_max_body_size</code> too small.</p>
<p><strong>Fix:</strong> Increase in nginx config:</p>
<div class="language-nginx highlight"><pre><span></span><code><span id="__span-18-1"><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a><span class="k">location</span><span class="w"> </span><span class="s">/api/media/</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-18-2"><a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a><span class="w"> </span><span class="kn">client_max_body_size</span><span class="w"> </span><span class="s">20G</span><span class="p">;</span><span class="w"> </span><span class="c1"># Increase from default</span>
</span><span id="__span-18-3"><a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a><span class="p">}</span>
</span></code></pre></div>
<h3 id="connection-pool-exhausted">Connection Pool Exhausted<a class="headerlink" href="#connection-pool-exhausted" title="Permanent link">&para;</a></h3>
<p><strong>Cause:</strong> Too many concurrent requests, not enough DB connections.</p>
<p><strong>Fix:</strong> Increase connection limit in <code>DATABASE_URL</code>:</p>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-19-1"><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a><span class="nv">DATABASE_URL</span><span class="o">=</span>postgresql://user:pass@host:5432/db?connection_limit<span class="o">=</span><span class="m">20</span>
</span></code></pre></div>
<p>Or reduce pool size per API instance (if running multiple):</p>
<div class="language-typescript highlight"><pre><span></span><code><span id="__span-20-1"><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a><span class="c1">// Prisma</span>
</span><span id="__span-20-2"><a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a><span class="nx">datasource</span><span class="w"> </span><span class="nx">db</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-20-3"><a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a><span class="w"> </span><span class="nx">url</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">env</span><span class="p">(</span><span class="s2">&quot;DATABASE_URL&quot;</span><span class="p">)</span><span class="w"> </span><span class="c1">// Add ?connection_limit=5 for smaller pool</span>
</span><span id="__span-20-4"><a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a><span class="p">}</span>
</span><span id="__span-20-5"><a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a>
</span><span id="__span-20-6"><a id="__codelineno-20-6" name="__codelineno-20-6" href="#__codelineno-20-6"></a><span class="c1">// Drizzle</span>
</span><span id="__span-20-7"><a id="__codelineno-20-7" name="__codelineno-20-7" href="#__codelineno-20-7"></a><span class="kd">const</span><span class="w"> </span><span class="nx">pool</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nx">Pool</span><span class="p">({</span><span class="w"> </span><span class="nx">max</span><span class="o">:</span><span class="w"> </span><span class="kt">5</span><span class="w"> </span><span class="p">});</span>
</span></code></pre></div>
<h3 id="jwt-verification-fails-across-apis">JWT Verification Fails Across APIs<a class="headerlink" href="#jwt-verification-fails-across-apis" title="Permanent link">&para;</a></h3>
<p><strong>Cause:</strong> Different <code>JWT_ACCESS_SECRET</code> values.</p>
<p><strong>Fix:</strong> Ensure both APIs use the same secret:</p>
<div class="language-bash highlight"><pre><span></span><code><span id="__span-21-1"><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a><span class="c1"># .env</span>
</span><span id="__span-21-2"><a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a><span class="nv">JWT_ACCESS_SECRET</span><span class="o">=</span>&lt;same-value-for-both&gt;
</span></code></pre></div>
<h2 id="further-reading">Further Reading<a class="headerlink" href="#further-reading" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="database.md">Database Architecture</a> — Prisma vs Drizzle schemas</li>
<li><a href="../authentication/">Authentication Flow</a> — JWT implementation</li>
<li><a href="monitoring.md">Monitoring Stack</a> — Prometheus metrics</li>
<li><a href="../../deployment/nginx/">Nginx Configuration</a> — Reverse proxy setup</li>
<li><a href="../../deployment/scaling/">Scaling Strategies</a> — Horizontal scaling</li>
</ul>
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