src/main.status.ts

@@ -60,16 +60,18 @@ const serviceStatePaths: { [service: string]: string } = config.groups
   }, {});
 
 let cache: CurrentStatus;
-let uptimeStates = existsSync(join(process.cwd(), 'uptime.json')) ? JSON.parse(readFileSync(join(process.cwd(), 'uptime.json'), {encoding: 'utf-8'})) : {} as { [id: string]: UptimeStatus; };
-// init serviceStates and uptimeStates
+let uptimeStates = existsSync(join(process.cwd(), 'uptime.json')) ? JSON.parse(readFileSync(join(process.cwd(), 'uptime.json'), {encoding: 'utf-8'})) : null as { [id: string]: UptimeStatus; };
 config.groups
   .map(g => g.services).reduce((x, y) => x.concat(y), [])
   .map(s => s.id).filter(id => !serviceStates[id])
   .forEach(id => serviceStates[id] = 'operational');
-for (let id in serviceStates) {
+if (!uptimeStates) {
+  uptimeStates = {};
+  for (let id in serviceStates) {
     if (serviceStates.hasOwnProperty(id)) {
       updateServiceState(id, serviceStates[id]);
     }
+  }
 }
 updateCache();