Adding a communication channel between server and clients using SSE

ui/src/actions/activity.js

@@ -0,0 +1,12 @@
+export const ACTIVITY_SCAN_STATUS_UPD = 'ACTIVITY_SCAN_STATUS_UPD'
+
+const actionsMap = { scanStatus: ACTIVITY_SCAN_STATUS_UPD }
+
+export const updateScanStatus = (data) => {
+  let type = actionsMap[data.name]
+  if (!type) type = 'UNKNOWN'
+  return {
+    type,
+    data: data.data,
+  }
+}