bugfixing websocket

fastify/app.js

@@ -86,122 +86,6 @@ function formatTimestampNewYork(timestamp) {
     .replace(",", "");
 }
 
-fastify.register(async function (fastify) {
-  fastify.get(
-    "/realtime-data",
-    { websocket: true },
-    (connection, req) => {
-
-      let jsonData;
-      let sendInterval;
-      let symbol;
-      let isSend = false;
-
-     
-      // Function to send data to the client
-     const sendData = async () => {
-  if (!symbol) return; // Check if symbol is defined
-  const filePath = path.join(__dirname, `../app/json/websocket/companies/${symbol}.json`);
-
-  try {
-    if (fs.existsSync(filePath)) {
-      const fileData = fs.readFileSync(filePath, "utf8");
-      jsonData = JSON.parse(fileData);
-
-      // Logic to send data if certain conditions are met
-      if (
-        jsonData?.lp != null &&
-        jsonData?.t != null &&
-        ["Q", "T"].includes(jsonData?.type) &&
-        connection.socket.readyState === WebSocket.OPEN &&
-        !isSend
-      ) {
-        // Calculate the average price
-        const avgPrice =
-          (parseFloat(jsonData.ap) +
-            parseFloat(jsonData.bp) +
-            parseFloat(jsonData.lp)) /
-          3;
-
-        connection.socket.send(
-          JSON.stringify({
-            bp: jsonData?.bp,
-            ap: jsonData?.ap,
-            lp: jsonData?.lp?.toFixed(2),
-            avgPrice: avgPrice?.toFixed(2), // Add the computed average price
-            type: jsonData?.type,
-            time: formatTimestampNewYork(jsonData?.t),
-          })
-        );
-
-        isSend = true;
-        setTimeout(() => {
-          isSend = false;
-        }, 500); // Reset isSend after 500ms
-      }
-    } else {
-      console.error("File not found:", filePath);
-      clearInterval(sendInterval);
-      connection.socket.close();
-      console.error("Connection closed");
-    }
-  } catch (err) {
-    console.error("Error sending data to client:", err);
-    clearInterval(sendInterval);
-    connection.socket.close();
-  }
-};
-
-
-      // Start receiving messages from the client
-      connection.socket.on("message", (message) => {
-        symbol = message.toString("utf-8")?.toUpperCase();
-        console.log("Received message from client:", symbol);
-
-        // Send data immediately upon receiving a symbol
-        sendData();
-
-        // Start periodic data sending if not already started
-        if (!sendInterval) {
-          sendInterval = setInterval(sendData, 1000);
-        }
-      });
-
-      // Handle client disconnect
-      connection.socket.on("close", () => {
-        console.log("Client disconnected");
-        clearInterval(sendInterval);
-        removeProcessListeners();
-      });
-
-      // Handle server crash cleanup
-      const closeHandler = () => {
-        console.log("Server is closing. Cleaning up resources...");
-        clearInterval(sendInterval);
-        connection.socket.close();
-        removeProcessListeners();
-      };
-
-      // Add close handler to process events
-      process.on("exit", closeHandler);
-      process.on("SIGINT", closeHandler);
-      process.on("SIGTERM", closeHandler);
-      process.on("uncaughtException", closeHandler);
-      process.on("unhandledRejection", closeHandler);
-
-      // Function to remove process listeners to avoid memory leaks
-      const removeProcessListeners = () => {
-        process.off("exit", closeHandler);
-        process.off("SIGINT", closeHandler);
-        process.off("SIGTERM", closeHandler);
-        process.off("uncaughtException", closeHandler);
-        process.off("unhandledRejection", closeHandler);
-      };
-    }
-  );
-});
-
-
 
 fastify.register(async function (fastify) {
   fastify.get(
@@ -357,7 +241,7 @@ fastify.register(async function (fastify) {
 
 fastify.register(async function (fastify) {
   fastify.get(
-    "/multiple-realtime-data",
+    "/price-data",
     { websocket: true },
     (connection, req) => {
       let tickers = [];
@@ -374,11 +258,23 @@ fastify.register(async function (fastify) {
       __dirname,
       `../app/json/websocket/companies/${symbol}.json`
     );
-
+try {
-    try {
       if (fs?.existsSync(filePath)) {
         const fileData = fs?.readFileSync(filePath, "utf8");
-        const jsonData = JSON?.parse(fileData);
+
+        if (!fileData) {
+          console.error(`File is empty for ticker: ${symbol}`);
+          continue;
+        }
+
+        let jsonData;
+        try {
+          jsonData = JSON?.parse(fileData);
+        } catch (parseError) {
+          console.error(`Invalid JSON format for ticker: ${symbol}`, parseError);
+          console.error(`File content: ${fileData}`);
+          continue;
+        }
 
         // Only send data if conditions are met and data has changed
         if (
@@ -389,33 +285,35 @@ fastify.register(async function (fastify) {
           ["Q", "T"].includes(jsonData?.type) &&
           connection.socket.readyState === WebSocket.OPEN
         ) {
-          // Calculate the average price
+          const avgPrice = (
-          const avgPrice =
+            parseFloat(jsonData?.ap) +
-            ((parseFloat(jsonData.ap) +
+            parseFloat(jsonData?.bp) +
-              parseFloat(jsonData.bp) +
+            parseFloat(jsonData?.lp)
-              parseFloat(jsonData.lp)) /
+          ) / 3;
-            3);
 
-          // Check if the current data is different from the last sent data
+          const finalPrice = Math.abs(avgPrice - jsonData?.bp) / jsonData?.bp > 0.05 
-          const currentDataSignature = `${jsonData?.lp}`;
+            ? jsonData.bp 
+            : avgPrice;
+
+          const currentDataSignature = `${jsonData?.bp}`;
           const lastSentSignature = lastSentData[symbol];
 
           if (currentDataSignature !== lastSentSignature) {
-            // Collect data to send
             dataToSend?.push({
-              symbol, // Include the ticker symbol in the sent data
+              symbol,
               ap: jsonData?.ap,
               bp: jsonData?.bp,
               lp: jsonData?.lp,
-              avgPrice: avgPrice, // Add the computed average price
+              avgPrice: finalPrice,
+              type: jsonData?.type,
+              time: formatTimestampNewYork(jsonData?.t),
             });
 
-            // Update the last sent data for this ticker
             lastSentData[symbol] = currentDataSignature;
           }
         }
       } else {
-        //console.error("File not found for ticker:", symbol);
+        console.error("File not found for ticker:", symbol);
       }
     } catch (err) {
       console.error("Error processing data for ticker:", symbol, err);
@@ -485,6 +383,8 @@ fastify.register(async function (fastify) {
   );
 });
 
+
+
 // Function to start the server
 function startServer() {
   if (!serverRunning) {