Switch from socket.io to REST for cadence streaming in attempt to fix timeout issue

static/js/BLE.js

@@ -24,6 +24,7 @@ async function connect(props) {
   console.log("> Notifications started");
   characteristic.addEventListener("characteristicvaluechanged", props.onChange);
   console.log("> Characteristic value changed event listener added");
+  /*
   socket = io({
     reconnection: true,
     reconnectionDelay: 1000,
@@ -43,6 +44,7 @@ async function connect(props) {
     }
     // else the socket will automatically try to reconnect
   });
+  */
 }
 
 async function disconnect() {
@@ -88,7 +90,15 @@ function parseCSC(e) {
   if (prevRes) {
     let rpm = revsToRPM(prevRes, res);
     if (rpm > 0)
-      socket.emit("message", { rpm: parseFloat(rpm.toFixed(2)), id: 1 });
+      //socket.emit("message", { rpm: parseFloat(rpm.toFixed(2)), id: 1 });
+      fetch("/cadence", {
+        method: "POST",
+        headers: {
+          Accept: "application/json, text/plain, */*",
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({ rpm: parseFloat(rpm.toFixed(2)), id: 1 }),
+      });
   }
   prevRes = res;
   return res;