Upload 11 files

data/sentiment_trends.json

@@ -1,24 +1,4 @@
 [
-  {
-    "time": "2026-02-17T21:55:04.627Z",
-    "score": 2.178794178794179
-  },
-  {
-    "time": "2026-02-17T22:00:04.836Z",
-    "score": 2.1621052631578945
-  },
-  {
-    "time": "2026-02-17T22:05:04.721Z",
-    "score": 2.1461377870563676
-  },
-  {
-    "time": "2026-02-17T22:10:04.944Z",
-    "score": 2.1596638655462184
-  },
-  {
-    "time": "2026-02-17T22:15:06.180Z",
-    "score": 2.214723926380368
-  },
   {
     "time": "2026-02-17T22:20:04.427Z",
     "score": 2.2378947368421054
@@ -198,5 +178,25 @@
   {
     "time": "2026-03-20T19:02:02.894Z",
     "score": 1.3021523178807948
+  },
+  {
+    "time": "2026-03-22T18:49:43.688Z",
+    "score": 0.5806772908366534
+  },
+  {
+    "time": "2026-03-22T18:50:00.414Z",
+    "score": 0.5806772908366534
+  },
+  {
+    "time": "2026-03-22T18:51:47.906Z",
+    "score": 0.5150300601202404
+  },
+  {
+    "time": "2026-03-22T18:52:00.825Z",
+    "score": 0.5150300601202404
+  },
+  {
+    "time": "2026-03-22T18:54:01.373Z",
+    "score": 0.4885799404170804
   }
 ]

index.js

@@ -6,14 +6,16 @@ const cron = require('node-cron');
 const cors = require('cors');
 const fs = require('fs');
 const path = require('path');
+const compression = require('compression');
 
 const app = express();
 const parser = new Parser();
 const sentiment = new Sentiment();
 const PORT = 3001;
 
+app.use(compression());
 app.use(cors());
-app.use(express.static('public'));
+app.use(express.static('public', { maxAge: '1d' }));
 
 const DATA_FILE = path.join(__dirname, 'data', 'news_sentiment.json');
 const TREND_FILE = path.join(__dirname, 'data', 'sentiment_trends.json');
@@ -117,19 +119,20 @@ async function fetchAndAnalyzeNews() {
     const now = new Date();
     const twentyFourHoursAgo = new Date(now.getTime() - 24 * 60 * 60 * 1000);
 
-    for (const url of RSS_FEEDS) {
+    const fetchPromises = RSS_FEEDS.map(async (url) => {
         try {
             const response = await axios.get(url, { headers: BROWSER_HEADERS, timeout: 10000 });
             const feed = await parser.parseString(response.data);
             const sourceName = getSourceName(url, feed.title);
             feedStatus[url] = { status: 'Success', displayName: sourceName, lastUpdate: new Date().toISOString() };
 
+            const items = [];
             feed.items.forEach(item => {
                 const pubDate = new Date(item.pubDate);
                 if (pubDate >= twentyFourHoursAgo) {
                     const fullText = `${item.title} ${item.contentSnippet || ''}`;
                     const analysis = sentiment.analyze(fullText);
-                    allEntries.push({
+                    items.push({
                         id: item.guid || item.link,
                         title: item.title,
                         link: item.link,
@@ -142,10 +145,19 @@ async function fetchAndAnalyzeNews() {
                     });
                 }
             });
+            return items;
         } catch (e) {
             feedStatus[url] = { status: 'Failed', displayName: url.split('/')[2], lastUpdate: new Date().toISOString() };
+            return [];
         }
-    }
+    });
+
+    const results = await Promise.allSettled(fetchPromises);
+    results.forEach(result => {
+        if (result.status === 'fulfilled') {
+            allEntries.push(...result.value);
+        }
+    });
 
     const uniqueNews = Array.from(new Map(allEntries.map(item => [item.link, item])).values());
     uniqueNews.sort((a, b) => new Date(b.pubDate) - new Date(a.pubDate));

package-lock.json

@@ -10,6 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "axios": "^1.13.5",
+        "compression": "^1.8.1",
         "cors": "^2.8.6",
         "express": "^5.2.1",
         "node-cron": "^4.2.1",
@@ -121,6 +122,60 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/compressible": {
+      "version": "2.0.18",
+      "resolved": "https://registry.npmjs.org/compressible/-/compressible-2.0.18.tgz",
+      "integrity": "sha512-AF3r7P5dWxL8MxyITRMlORQNaOA2IkAFaTr4k7BUumjPtRpGDTZpl0Pb1XCO6JeDCBdp126Cgs9sMxqSjgYyRg==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": ">= 1.43.0 < 2"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/compression": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/compression/-/compression-1.8.1.tgz",
+      "integrity": "sha512-9mAqGPHLakhCLeNyxPkK4xVo746zQ/czLH1Ky+vkitMnWfWZps8r0qXuwhwizagCRttsL4lfG4pIOvaWLpAP0w==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "3.1.2",
+        "compressible": "~2.0.18",
+        "debug": "2.6.9",
+        "negotiator": "~0.6.4",
+        "on-headers": "~1.1.0",
+        "safe-buffer": "5.2.1",
+        "vary": "~1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/compression/node_modules/debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/compression/node_modules/ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
+      "license": "MIT"
+    },
+    "node_modules/compression/node_modules/negotiator": {
+      "version": "0.6.4",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.4.tgz",
+      "integrity": "sha512-myRT3DiWPHqho5PrJaIRyaMv2kgYf0mUVgBNOYMuCH5Ki1yEiQaf/ZJuQ62nvpc44wL5WDbTX7yGJi1Neevw8w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/content-disposition": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.1.tgz",
@@ -716,6 +771,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/on-headers": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/on-headers/-/on-headers-1.1.0.tgz",
+      "integrity": "sha512-737ZY3yNnXy37FHkQxPzt4UZ2UWPWiCZWLvFZ4fu5cueciegX0zGPnrlY6bwRg4FdQOe9YU8MkmJwGhoMybl8A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -828,6 +892,26 @@
         "xml2js": "^0.5.0"
       }
     },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/safer-buffer": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",

package.json

@@ -12,6 +12,7 @@
   "type": "commonjs",
   "dependencies": {
     "axios": "^1.13.5",
+    "compression": "^1.8.1",
     "cors": "^2.8.6",
     "express": "^5.2.1",
     "node-cron": "^4.2.1",

public/app.js

@@ -60,7 +60,10 @@ function renderFeed() {
         return;
     }
 
-    feed.innerHTML = filtered.map((item, index) => {
+    const maxItems = 100;
+    const itemsToRender = filtered.slice(0, maxItems);
+
+    feed.innerHTML = itemsToRender.map((item, index) => {
         const timeAgo = getTimeAgo(new Date(item.pubDate));
         const highlightedTitle = highlightImpact(item.title);
         return `
@@ -124,9 +127,13 @@ function filterBySentiment(sentiment) {
     renderFeed();
 }
 
+let searchTimeout;
 function handleSearch(val) {
-    searchQuery = val;
-    renderFeed();
+    clearTimeout(searchTimeout);
+    searchTimeout = setTimeout(() => {
+        searchQuery = val;
+        renderFeed();
+    }, 300);
 }