Display relay status on relays page

central_frontend/src/api/DeviceApi.ts

@@ -45,6 +45,14 @@ export interface UpdatedInfo {
   enabled: boolean;
 }
 
+export interface DeviceState {
+  id: string;
+  last_ping: number;
+  online: boolean;
+}
+
+export type DevicesState = Map<string, DeviceState>;
+
 export function DeviceURL(d: Device): string {
   return `/dev/${encodeURIComponent(d.id)}`;
 }
@@ -74,6 +82,22 @@ export class DeviceApi {
     ).data;
   }
 
+  /**
+   * Get the state of devices
+   */
+  static async DevicesState(): Promise<DevicesState> {
+    const devs: DeviceState[] = (
+      await APIClient.exec({
+        uri: "/devices/state",
+        method: "GET",
+      })
+    ).data;
+
+    const m = new Map();
+    devs.forEach((d) => m.set(d.id, d));
+    return m;
+  }
+
   /**
    * Validate a device
    */