improvement

backend/database/urls.json

@@ -1,15 +1,24 @@
 [
     "cloudflare.com",
-    "postgresql.org",
-    "github.com",
-    "mozilla.org",
-    "amazon.com",
+    "example.invalid",
     "google.com",
+    "myfakewebsite123.xyz",
+    "postgresql.org",
+    "notarealdomain.test",
+    "github.com",
     "docker.com",
-    "wikipedia.org",
-    "duckduckgo.com",
-    "nodejs.org",
-    "amns.in",
+    "invalid-site-999.com",
+    "mozilla.org",
     "amazon.in",
-    "amdocs.com"
+    "thisdoesnotexistabc123.com",
+    "nodejs.org",
+    "amdocs.com",
+    "fake-company-domain.org",
+    "wikipedia.org",
+    "nonexistentdomain987654.net",
+    "duckduckgo.com",
+    "amazon.com",
+    "amns.in",
+    "missingwebsite.fake",
+    "randominvaliddomain12345.io"
 ]

backend/models/db_store_controller.js

@@ -4,6 +4,12 @@ const url_path = path.join(__dirname, "../database", "db.json");
 
 const StoreRecord = async (urlRecord) => {
   try {
+    try {
+      await fs.access(url_path);
+    } catch {
+      await fs.writeFile(url_path, "[]");
+    }
+
     const rawData = await fs.readFile(url_path, "utf8");
     const data = JSON.parse(rawData);
 

backend/web_socket_server.js

@@ -6,7 +6,6 @@ const { StoreRecord } = require("./models/db_store_controller");
 const { checkUrl } = require("./models/health_status_controller");
 
 const { init, broadcast } = require("./utils/utils");
-// const urlPath = "./database/urls.json";
 const urlPath = path.join(__dirname, "database", "urls.json");
 dotenv.config();
 
@@ -35,11 +34,17 @@ const checkAllUrl = async (Store) => {
 async function setupWebSocket(wss) {
   init(wss);
   let Store = [];
-  checkAllUrl(Store);
-  setInterval(async () => {
-    Store = [];
+  wss.on("connection", (ws) => {
     checkAllUrl(Store);
-  }, 2000);
+  });
+
+  setInterval(
+    async () => {
+      Store = [];
+      checkAllUrl(Store);
+    },
+    process.env.TIME || 60 * 1000,
+  );
 }
 
 module.exports = { setupWebSocket };