Switch Listmonk integration to direct PostgreSQL access

- Replaced HTTP API calls with direct database insertions
- More reliable than API auth which requires session tokens in Listmonk v5+
- Added pg package for PostgreSQL connectivity
- Handles both new subscribers and existing ones (updates attributes)
- Merges WORLDPLAY attributes with any existing subscriber data

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -13,10 +13,12 @@ services:
       - RESEND_API_KEY=${RESEND_API_KEY}
       - GOOGLE_SHEET_ID=${GOOGLE_SHEET_ID}
       - GOOGLE_CREDENTIALS=${GOOGLE_CREDENTIALS}
-      # Listmonk newsletter integration
+      # Listmonk newsletter integration (direct DB access)
-      - LISTMONK_URL=http://listmonk:9000
+      - LISTMONK_DB_HOST=listmonk-db
-      - LISTMONK_USER=worldplay-api
+      - LISTMONK_DB_PORT=5432
-      - LISTMONK_PASS=worldplay-api-2026
+      - LISTMONK_DB_NAME=listmonk
+      - LISTMONK_DB_USER=listmonk
+      - LISTMONK_DB_PASS=listmonk_secure_2025
       - LISTMONK_LIST_ID=20
     volumes:
       - worldplay-data:/app/data

package.json

@@ -19,6 +19,7 @@
   "dependencies": {
     "express": "^4.18.2",
     "googleapis": "^144.0.0",
+    "pg": "^8.11.3",
     "resend": "^4.0.0"
   },
   "engines": {

server.js

@@ -3,6 +3,7 @@ const fs = require('fs').promises;
 const path = require('path');
 const { google } = require('googleapis');
 const { Resend } = require('resend');
+const { Pool } = require('pg');
 
 const app = express();
 const PORT = process.env.PORT || 3000;
@@ -12,11 +13,15 @@ const REGISTRATIONS_FILE = path.join(DATA_DIR, 'registrations.json');
 // Initialize Resend for emails
 const resend = process.env.RESEND_API_KEY ? new Resend(process.env.RESEND_API_KEY) : null;
 
-// Listmonk configuration for newsletter management
+// Listmonk PostgreSQL configuration for newsletter management
-const LISTMONK_URL = process.env.LISTMONK_URL || 'http://listmonk:9000';
-const LISTMONK_USER = process.env.LISTMONK_USER || 'worldplay-api';
-const LISTMONK_PASS = process.env.LISTMONK_PASS || 'worldplay-api-2026';
 const LISTMONK_LIST_ID = parseInt(process.env.LISTMONK_LIST_ID) || 20; // WORLDPLAY list
+const listmonkPool = process.env.LISTMONK_DB_HOST ? new Pool({
+    host: process.env.LISTMONK_DB_HOST || 'listmonk-db',
+    port: parseInt(process.env.LISTMONK_DB_PORT) || 5432,
+    database: process.env.LISTMONK_DB_NAME || 'listmonk',
+    user: process.env.LISTMONK_DB_USER || 'listmonk',
+    password: process.env.LISTMONK_DB_PASS || 'listmonk_secure_2025',
+}) : null;
 
 // Google Sheets configuration
 const GOOGLE_SHEET_ID = process.env.GOOGLE_SHEET_ID;
@@ -248,29 +253,23 @@ async function sendConfirmationEmail(registration) {
     }
 }
 
-// Add subscriber to Listmonk for newsletter management
+// Add subscriber to Listmonk for newsletter management (direct DB access)
 async function addToListmonk(registration) {
     if (!registration.newsletter) {
         console.log('Newsletter not opted in, skipping Listmonk...');
         return;
     }
 
-    try {
+    if (!listmonkPool) {
-        const auth = Buffer.from(`${LISTMONK_USER}:${LISTMONK_PASS}`).toString('base64');
+        console.log('Listmonk database not configured, skipping...');
+        return;
+    }
 
-        // First, create or update the subscriber
+    const client = await listmonkPool.connect();
-        const subscriberResponse = await fetch(`${LISTMONK_URL}/api/subscribers`, {
+    try {
-            method: 'POST',
+        const fullName = `${registration.firstName} ${registration.lastName}`;
-            headers: {
+        const attribs = {
-                'Authorization': `Basic ${auth}`,
+            worldplay: {
-                'Content-Type': 'application/json',
-            },
-            body: JSON.stringify({
-                email: registration.email,
-                name: `${registration.firstName} ${registration.lastName}`,
-                status: 'enabled',
-                lists: [LISTMONK_LIST_ID],
-                attribs: {
                 firstName: registration.firstName,
                 lastName: registration.lastName,
                 location: registration.location || '',
@@ -280,49 +279,52 @@ async function addToListmonk(registration) {
                 registrationId: registration.id,
                 registeredAt: registration.registeredAt
             }
-            }),
+        };
-        });
 
-        if (subscriberResponse.ok) {
+        // Check if subscriber exists
-            const data = await subscriberResponse.json();
+        const existingResult = await client.query(
-            console.log(`Added to Listmonk WORLDPLAY list: ${registration.email} (ID: ${data.data?.id})`);
+            'SELECT id, attribs FROM subscribers WHERE email = $1',
-        } else if (subscriberResponse.status === 409) {
+            [registration.email]
-            // Subscriber already exists, add to list
+        );
-            console.log(`Subscriber exists in Listmonk, updating list membership: ${registration.email}`);
 
-            // Get existing subscriber
+        let subscriberId;
-            const searchResponse = await fetch(`${LISTMONK_URL}/api/subscribers?query=email='${registration.email}'`, {
-                headers: { 'Authorization': `Basic ${auth}` },
-            });
 
-            if (searchResponse.ok) {
+        if (existingResult.rows.length > 0) {
-                const searchData = await searchResponse.json();
+            // Subscriber exists - update attributes and get ID
-                if (searchData.data?.results?.length > 0) {
+            subscriberId = existingResult.rows[0].id;
-                    const subscriberId = searchData.data.results[0].id;
+            const existingAttribs = existingResult.rows[0].attribs || {};
+            const mergedAttribs = { ...existingAttribs, ...attribs };
 
-                    // Add to WORLDPLAY list
+            await client.query(
-                    await fetch(`${LISTMONK_URL}/api/subscribers/lists`, {
+                'UPDATE subscribers SET name = $1, attribs = $2, updated_at = NOW() WHERE id = $3',
-                        method: 'PUT',
+                [fullName, JSON.stringify(mergedAttribs), subscriberId]
-                        headers: {
+            );
-                            'Authorization': `Basic ${auth}`,
+            console.log(`Updated existing Listmonk subscriber: ${registration.email} (ID: ${subscriberId})`);
-                            'Content-Type': 'application/json',
-                        },
-                        body: JSON.stringify({
-                            ids: [subscriberId],
-                            action: 'add',
-                            target_list_ids: [LISTMONK_LIST_ID],
-                            status: 'confirmed'
-                        }),
-                    });
-                    console.log(`Added existing subscriber to WORLDPLAY list: ${registration.email}`);
-                }
-            }
         } else {
-            const errorText = await subscriberResponse.text();
+            // Create new subscriber
-            console.error(`Listmonk API error (${subscriberResponse.status}): ${errorText}`);
+            const insertResult = await client.query(
+                `INSERT INTO subscribers (uuid, email, name, status, attribs, created_at, updated_at)
+                 VALUES (gen_random_uuid(), $1, $2, 'enabled', $3, NOW(), NOW())
+                 RETURNING id`,
+                [registration.email, fullName, JSON.stringify(attribs)]
+            );
+            subscriberId = insertResult.rows[0].id;
+            console.log(`Created new Listmonk subscriber: ${registration.email} (ID: ${subscriberId})`);
         }
+
+        // Add to WORLDPLAY list if not already a member
+        await client.query(
+            `INSERT INTO subscriber_lists (subscriber_id, list_id, status, created_at, updated_at)
+             VALUES ($1, $2, 'confirmed', NOW(), NOW())
+             ON CONFLICT (subscriber_id, list_id) DO UPDATE SET status = 'confirmed', updated_at = NOW()`,
+            [subscriberId, LISTMONK_LIST_ID]
+        );
+        console.log(`Added to Listmonk WORLDPLAY list: ${registration.email}`);
+
     } catch (error) {
         console.error('Error adding to Listmonk:', error.message);
+    } finally {
+        client.release();
     }
 }
 
@@ -512,6 +514,6 @@ ensureDataDir().then(() => {
         console.log(`Admin token: ${process.env.ADMIN_TOKEN || 'worldplay-admin-2026'}`);
         console.log(`Google Sheets: ${sheets ? 'enabled' : 'disabled'}`);
         console.log(`Email notifications: ${resend ? 'enabled' : 'disabled'}`);
-        console.log(`Listmonk newsletter sync: enabled (list ID: ${LISTMONK_LIST_ID})`);
+        console.log(`Listmonk newsletter sync: ${listmonkPool ? 'enabled' : 'disabled'} (list ID: ${LISTMONK_LIST_ID})`);
     });
 });