new: view counter

Dockerfile

@@ -1,8 +1,33 @@
-FROM node:18-alpine
-ENV NODE_ENV=production
+# STAGE 1: Build the Eleventy site
+FROM node:18-alpine AS builder
 WORKDIR /app
+
+# Copy project files and install dependencies
 COPY package*.json ./
 RUN npm install
 COPY . .
-EXPOSE 8080 9229
+
+# Build the Eleventy site
+# The output will be in the default `_site` directory
+RUN npx @11ty/eleventy
+
+# STAGE 2: Setup the production server
+FROM node:18-alpine
+WORKDIR /app
+
+# Copy server dependencies from the builder stage
+COPY --from=builder /app/package*.json ./
+
+# Install only production dependencies for the server
+RUN npm install --omit=dev
+
+# Copy the server file and the built Eleventy site
+COPY --from=builder /app/server.js .
+COPY --from=builder /app/_site ./_site
+COPY --from=builder /app/data ./data
+
+# Expose the port the server runs on
+EXPOSE 8080
+
+# The command to start the server
 CMD [ "npm", "start" ]

package.json

@@ -10,6 +10,9 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@11ty/eleventy": "^2.0.1"
+    "@11ty/eleventy": "^2.0.1",
+    "cors": "^2.8.5",
+    "express": "^4.21.2",
+    "fs-extra": "^11.3.1"
   }
 }

src/_data/views.json

@@ -0,0 +1 @@
+{"8.14.25":1,"8.5.25":1}

src/_includes/post.njk

@@ -9,8 +9,12 @@ layout: "layout.njk"
         </a>
     </div>
     <h1>{{ title }}</h1>
-    <p class="text-gray-400">Published on {{ date | readableDate }}</p>
+    <div class="post-meta">
+        <p class="text-gray-400">Published on {{ date | readableDate }}</p>
+        <span class="view-count" data-view-count data-slug="{{ page.fileSlug }}">Loading views...</span>
+    </div>
     <br/>
     {{ content | safe }}
 </article>
+<script src="/js/view-counter.js"></script>
 <div id="bottom"></div>

src/js/view-counter.js

@@ -0,0 +1,38 @@
+document.addEventListener('DOMContentLoaded', () => {
+    const viewCountElement = document.querySelector('[data-view-count]');
+
+    if (viewCountElement) {
+        const slug = viewCountElement.dataset.slug;
+        const serverUrl = 'http://localhost:3000'; // IMPORTANT: Replace with your server's IP/domain
+
+        // Function to fetch and display the view count
+        const getViews = async () => {
+            try {
+                const response = await fetch(`${serverUrl}/api/views/${slug}`);
+                if (!response.ok) throw new Error('Failed to fetch views');
+                const data = await response.json();
+                viewCountElement.textContent = `${data.count} views`;
+            } catch (error) {
+                console.error('Error getting views:', error);
+                viewCountElement.textContent = 'Could not load views';
+            }
+        };
+
+        // Function to increment the view count
+        const incrementView = async () => {
+            try {
+                // Use a flag in localStorage to prevent incrementing on every refresh
+                const viewed = localStorage.getItem(`viewed-${slug}`);
+                if (!viewed) {
+                    await fetch(`${serverUrl}/api/views/${slug}`, { method: 'POST' });
+                    localStorage.setItem(`viewed-${slug}`, 'true');
+                }
+            } catch (error) {
+                console.error('Error incrementing view:', error);
+            }
+        };
+
+        // Run the functions
+        incrementView().then(getViews);
+    }
+});

src/server.js

@@ -0,0 +1,53 @@
+const express = require('express');
+const cors = require('cors');
+const fs = require('fs-extra');
+const path = require('path');
+
+const app = express();
+const port = 3000; // You can change this port if needed
+
+// Path to the file where view counts will be stored
+const dbPath = path.join(__dirname, '_data', 'views.json');
+
+// Ensure the data directory and the views.json file exist
+fs.ensureFileSync(dbPath);
+const initialData = fs.readFileSync(dbPath, 'utf8');
+if (initialData.length === 0) {
+    fs.writeJsonSync(dbPath, {});
+}
+
+app.use(cors()); // Enable Cross-Origin Resource Sharing
+app.use(express.json());
+
+// --- API Endpoints ---
+
+// GET: Fetch the view count for a specific post slug
+app.get('/api/views/:slug', async (req, res) => {
+    try {
+        const { slug } = req.params;
+        const views = await fs.readJson(dbPath);
+        const count = views[slug] || 0;
+        res.json({ count });
+    } catch (error) {
+        console.error('Error reading view count:', error);
+        res.status(500).json({ error: 'Internal Server Error' });
+    }
+});
+
+// POST: Increment the view count for a specific post slug
+app.post('/api/views/:slug', async (req, res) => {
+    try {
+        const { slug } = req.params;
+        const views = await fs.readJson(dbPath);
+        views[slug] = (views[slug] || 0) + 1;
+        await fs.writeJson(dbPath, views);
+        res.json({ count: views[slug] });
+    } catch (error) {
+        console.error('Error updating view count:', error);
+        res.status(500).json({ error: 'Internal Server Error' });
+    }
+});
+
+app.listen(port, () => {
+    console.log(`View counter server listening at http://localhost:${port}`);
+});