Add concept of Flag values under window object to ensure values are

parsed before use

ui/public/index.html

@@ -50,9 +50,9 @@
       href="https://fonts.googleapis.com/icon?family=Material+Icons"
     />
     <script>
-      window.ROOT_PATH = "%PUBLIC_URL%";
+      window.FLAG_ROOT_PATH = "%PUBLIC_URL%";
-      window.PROMETHEUS_SERVER_ADDRESS = "/[[.PrometheusAddr]]";
+      window.FLAG_PROMETHEUS_SERVER_ADDRESS = "/[[.PrometheusAddr]]";
-	  window.READ_ONLY = /[[.ReadOnly]];
+	  window.FLAG_READ_ONLY = "/[[.ReadOnly]]";
     </script>
     <title>Asynq - Monitoring</title>
   </head>

ui/src/App.tsx

@@ -26,7 +26,7 @@ import TimelineIcon from "@material-ui/icons/Timeline";
 import DoubleArrowIcon from "@material-ui/icons/DoubleArrow";
 import CloseIcon from "@material-ui/icons/Close";
 import { AppState } from "./store";
-import { paths } from "./paths";
+import { paths as getPaths } from "./paths";
 import { isDarkTheme, useTheme } from "./theme";
 import { closeSnackbar } from "./actions/snackbarActions";
 import { toggleDrawer } from "./actions/settingsActions";
@@ -156,6 +156,7 @@ function SlideUpTransition(props: TransitionProps) {
 function App(props: ConnectedProps<typeof connector>) {
   const theme = useTheme(props.themePreference);
   const classes = useStyles(theme)();
+  const paths = getPaths();
   return (
     <ThemeProvider theme={theme}>
       <Router>

ui/src/api.ts

@@ -4,7 +4,7 @@ import queryString from "query-string";
 // In production build, API server is on listening on the same port as
 // the static file server.
 // In developement, we assume that the API server is listening on port 8080.
-const BASE_URL =
+const getBaseUrl = () =>
   process.env.NODE_ENV === "production"
     ? `${window.ROOT_PATH}/api`
     : `http://localhost:8080${window.ROOT_PATH}/api`;
@@ -340,7 +340,7 @@ export interface PaginationOptions extends Record<string, number | undefined> {
 export async function listQueues(): Promise<ListQueuesResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/queues`,
+    url: `${getBaseUrl()}/queues`,
   });
   return resp.data;
 }
@@ -348,28 +348,28 @@ export async function listQueues(): Promise<ListQueuesResponse> {
 export async function deleteQueue(qname: string): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}`,
+    url: `${getBaseUrl()}/queues/${qname}`,
   });
 }
 
 export async function pauseQueue(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}:pause`,
+    url: `${getBaseUrl()}/queues/${qname}:pause`,
   });
 }
 
 export async function resumeQueue(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}:resume`,
+    url: `${getBaseUrl()}/queues/${qname}:resume`,
   });
 }
 
 export async function listQueueStats(): Promise<ListQueueStatsResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/queue_stats`,
+    url: `${getBaseUrl()}/queue_stats`,
   });
   return resp.data;
 }
@@ -378,7 +378,7 @@ export async function getTaskInfo(
   qname: string,
   id: string
 ): Promise<TaskInfo> {
-  const url = `${BASE_URL}/queues/${qname}/tasks/${id}`;
+  const url = `${getBaseUrl()}/queues/${qname}/tasks/${id}`;
   const resp = await axios({
     method: "get",
     url,
@@ -390,7 +390,7 @@ export async function listActiveTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/active_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/active_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -407,14 +407,14 @@ export async function cancelActiveTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/active_tasks/${taskId}:cancel`,
+    url: `${getBaseUrl()}/queues/${qname}/active_tasks/${taskId}:cancel`,
   });
 }
 
 export async function cancelAllActiveTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/active_tasks:cancel_all`,
+    url: `${getBaseUrl()}/queues/${qname}/active_tasks:cancel_all`,
   });
 }
 
@@ -424,7 +424,7 @@ export async function batchCancelActiveTasks(
 ): Promise<BatchCancelTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/active_tasks:batch_cancel`,
+    url: `${getBaseUrl()}/queues/${qname}/active_tasks:batch_cancel`,
     data: {
       task_ids: taskIds,
     },
@@ -436,7 +436,7 @@ export async function listPendingTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/pending_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/pending_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -451,7 +451,7 @@ export async function listScheduledTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/scheduled_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/scheduled_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -466,7 +466,7 @@ export async function listRetryTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/retry_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/retry_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -481,7 +481,7 @@ export async function listArchivedTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/archived_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/archived_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -496,7 +496,7 @@ export async function listCompletedTasks(
   qname: string,
   pageOpts?: PaginationOptions
 ): Promise<ListTasksResponse> {
-  let url = `${BASE_URL}/queues/${qname}/completed_tasks`;
+  let url = `${getBaseUrl()}/queues/${qname}/completed_tasks`;
   if (pageOpts) {
     url += `?${queryString.stringify(pageOpts)}`;
   }
@@ -513,7 +513,7 @@ export async function archivePendingTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks/${taskId}:archive`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks/${taskId}:archive`,
   });
 }
 
@@ -523,7 +523,7 @@ export async function batchArchivePendingTasks(
 ): Promise<BatchArchiveTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks:batch_archive`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks:batch_archive`,
     data: {
       task_ids: taskIds,
     },
@@ -534,7 +534,7 @@ export async function batchArchivePendingTasks(
 export async function archiveAllPendingTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks:archive_all`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks:archive_all`,
   });
 }
 
@@ -544,7 +544,7 @@ export async function deletePendingTask(
 ): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks/${taskId}`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks/${taskId}`,
   });
 }
 
@@ -554,7 +554,7 @@ export async function batchDeletePendingTasks(
 ): Promise<BatchDeleteTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks:batch_delete`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks:batch_delete`,
     data: {
       task_ids: taskIds,
     },
@@ -567,7 +567,7 @@ export async function deleteAllPendingTasks(
 ): Promise<DeleteAllTasksResponse> {
   const resp = await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/pending_tasks:delete_all`,
+    url: `${getBaseUrl()}/queues/${qname}/pending_tasks:delete_all`,
   });
   return resp.data;
 }
@@ -578,7 +578,7 @@ export async function runScheduledTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks/${taskId}:run`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks/${taskId}:run`,
   });
 }
 
@@ -588,7 +588,7 @@ export async function archiveScheduledTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks/${taskId}:archive`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks/${taskId}:archive`,
   });
 }
 
@@ -598,7 +598,7 @@ export async function deleteScheduledTask(
 ): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks/${taskId}`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks/${taskId}`,
   });
 }
 
@@ -608,7 +608,7 @@ export async function batchDeleteScheduledTasks(
 ): Promise<BatchDeleteTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:batch_delete`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:batch_delete`,
     data: {
       task_ids: taskIds,
     },
@@ -621,7 +621,7 @@ export async function deleteAllScheduledTasks(
 ): Promise<DeleteAllTasksResponse> {
   const resp = await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:delete_all`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:delete_all`,
   });
   return resp.data;
 }
@@ -632,7 +632,7 @@ export async function batchRunScheduledTasks(
 ): Promise<BatchRunTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:batch_run`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:batch_run`,
     data: {
       task_ids: taskIds,
     },
@@ -643,7 +643,7 @@ export async function batchRunScheduledTasks(
 export async function runAllScheduledTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:run_all`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:run_all`,
   });
 }
 
@@ -653,7 +653,7 @@ export async function batchArchiveScheduledTasks(
 ): Promise<BatchArchiveTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:batch_archive`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:batch_archive`,
     data: {
       task_ids: taskIds,
     },
@@ -664,7 +664,7 @@ export async function batchArchiveScheduledTasks(
 export async function archiveAllScheduledTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/scheduled_tasks:archive_all`,
+    url: `${getBaseUrl()}/queues/${qname}/scheduled_tasks:archive_all`,
   });
 }
 
@@ -674,7 +674,7 @@ export async function runRetryTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks/${taskId}:run`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks/${taskId}:run`,
   });
 }
 
@@ -684,7 +684,7 @@ export async function archiveRetryTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks/${taskId}:archive`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks/${taskId}:archive`,
   });
 }
 
@@ -694,7 +694,7 @@ export async function deleteRetryTask(
 ): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks/${taskId}`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks/${taskId}`,
   });
 }
 
@@ -704,7 +704,7 @@ export async function batchDeleteRetryTasks(
 ): Promise<BatchDeleteTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:batch_delete`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:batch_delete`,
     data: {
       task_ids: taskIds,
     },
@@ -717,7 +717,7 @@ export async function deleteAllRetryTasks(
 ): Promise<DeleteAllTasksResponse> {
   const resp = await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:delete_all`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:delete_all`,
   });
   return resp.data;
 }
@@ -728,7 +728,7 @@ export async function batchRunRetryTasks(
 ): Promise<BatchRunTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:batch_run`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:batch_run`,
     data: {
       task_ids: taskIds,
     },
@@ -739,7 +739,7 @@ export async function batchRunRetryTasks(
 export async function runAllRetryTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:run_all`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:run_all`,
   });
 }
 
@@ -749,7 +749,7 @@ export async function batchArchiveRetryTasks(
 ): Promise<BatchArchiveTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:batch_archive`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:batch_archive`,
     data: {
       task_ids: taskIds,
     },
@@ -760,7 +760,7 @@ export async function batchArchiveRetryTasks(
 export async function archiveAllRetryTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/retry_tasks:archive_all`,
+    url: `${getBaseUrl()}/queues/${qname}/retry_tasks:archive_all`,
   });
 }
 
@@ -770,7 +770,7 @@ export async function runArchivedTask(
 ): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks/${taskId}:run`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks/${taskId}:run`,
   });
 }
 
@@ -780,7 +780,7 @@ export async function deleteArchivedTask(
 ): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks/${taskId}`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks/${taskId}`,
   });
 }
 
@@ -790,7 +790,7 @@ export async function batchDeleteArchivedTasks(
 ): Promise<BatchDeleteTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks:batch_delete`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks:batch_delete`,
     data: {
       task_ids: taskIds,
     },
@@ -803,7 +803,7 @@ export async function deleteAllArchivedTasks(
 ): Promise<DeleteAllTasksResponse> {
   const resp = await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks:delete_all`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks:delete_all`,
   });
   return resp.data;
 }
@@ -814,7 +814,7 @@ export async function batchRunArchivedTasks(
 ): Promise<BatchRunTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks:batch_run`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks:batch_run`,
     data: {
       task_ids: taskIds,
     },
@@ -825,7 +825,7 @@ export async function batchRunArchivedTasks(
 export async function runAllArchivedTasks(qname: string): Promise<void> {
   await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/archived_tasks:run_all`,
+    url: `${getBaseUrl()}/queues/${qname}/archived_tasks:run_all`,
   });
 }
 
@@ -835,7 +835,7 @@ export async function deleteCompletedTask(
 ): Promise<void> {
   await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/completed_tasks/${taskId}`,
+    url: `${getBaseUrl()}/queues/${qname}/completed_tasks/${taskId}`,
   });
 }
 
@@ -845,7 +845,7 @@ export async function batchDeleteCompletedTasks(
 ): Promise<BatchDeleteTasksResponse> {
   const resp = await axios({
     method: "post",
-    url: `${BASE_URL}/queues/${qname}/completed_tasks:batch_delete`,
+    url: `${getBaseUrl()}/queues/${qname}/completed_tasks:batch_delete`,
     data: {
       task_ids: taskIds,
     },
@@ -858,7 +858,7 @@ export async function deleteAllCompletedTasks(
 ): Promise<DeleteAllTasksResponse> {
   const resp = await axios({
     method: "delete",
-    url: `${BASE_URL}/queues/${qname}/completed_tasks:delete_all`,
+    url: `${getBaseUrl()}/queues/${qname}/completed_tasks:delete_all`,
   });
   return resp.data;
 }
@@ -866,7 +866,7 @@ export async function deleteAllCompletedTasks(
 export async function listServers(): Promise<ListServersResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/servers`,
+    url: `${getBaseUrl()}/servers`,
   });
   return resp.data;
 }
@@ -874,7 +874,7 @@ export async function listServers(): Promise<ListServersResponse> {
 export async function listSchedulerEntries(): Promise<ListSchedulerEntriesResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/scheduler_entries`,
+    url: `${getBaseUrl()}/scheduler_entries`,
   });
   return resp.data;
 }
@@ -884,7 +884,7 @@ export async function listSchedulerEnqueueEvents(
 ): Promise<ListSchedulerEnqueueEventsResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/scheduler_entries/${entryId}/enqueue_events`,
+    url: `${getBaseUrl()}/scheduler_entries/${entryId}/enqueue_events`,
   });
   return resp.data;
 }
@@ -892,7 +892,7 @@ export async function listSchedulerEnqueueEvents(
 export async function getRedisInfo(): Promise<RedisInfoResponse> {
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/redis_info`,
+    url: `${getBaseUrl()}/redis_info`,
   });
   return resp.data;
 }
@@ -917,7 +917,7 @@ export async function getMetrics(
   }
   const resp = await axios({
     method: "get",
-    url: `${BASE_URL}/metrics?${queryString.stringify(params)}`,
+    url: `${getBaseUrl()}/metrics?${queryString.stringify(params)}`,
   });
   return resp.data;
 }

ui/src/components/QueueBreadcrumb.tsx

@@ -6,7 +6,7 @@ import Chip from "@material-ui/core/Chip";
 import Menu from "@material-ui/core/Menu";
 import MenuItem from "@material-ui/core/MenuItem";
 import ExpandMoreIcon from "@material-ui/icons/ExpandMore";
-import { paths, queueDetailsPath } from "../paths";
+import { paths as getPaths, queueDetailsPath } from "../paths";
 import { isDarkTheme } from "../theme";
 
 const StyledBreadcrumb = withStyles((theme: Theme) => ({
@@ -39,6 +39,7 @@ interface Props {
 export default function QueueBreadcrumbs(props: Props) {
   const history = useHistory();
   const [anchorEl, setAnchorEl] = useState<null | Element>(null);
+  const paths = getPaths();
 
   const handleClick = (event: React.MouseEvent<Element, MouseEvent>) => {
     event.preventDefault();

ui/src/global.d.ts

@@ -1,4 +1,10 @@
 interface Window {
+  // FLAG values are assigned by server under the window object.
+  // parseFlagsUnderWindow function parses these values and assigns the interpretted value under the window.
+  FLAG_ROOT_PATH: string;
+  FLAG_PROMETHEUS_SERVER_ADDRESS: string;
+  FLAG_READ_ONLY: string;
+
   // Root URL path for asynqmon app.
   // ROOT_PATH should not have the tailing slash.
   ROOT_PATH: string;

ui/src/index.tsx

@@ -4,10 +4,13 @@ import CssBaseline from "@material-ui/core/CssBaseline";
 import { Provider } from "react-redux";
 import App from "./App";
 import store from "./store";
+import parseFlagsUnderWindow from "./parseFlags";
 import * as serviceWorker from "./serviceWorker";
 import { saveState } from "./localStorage";
 import { SettingsState } from "./reducers/settingsReducer";
 
+parseFlagsUnderWindow();
+
 let currentSettings: SettingsState | undefined = undefined;
 store.subscribe(() => {
   const prevSettings = currentSettings;

ui/src/parseFlags.ts

@@ -0,0 +1,42 @@
+// Prefix used for go template
+const goTmplActionPrefix = "/[[";
+
+// paseses flags (string values) assigned under the window objects by server.
+export default function parseFlagsUnderWindow() {
+  // ROOT_PATH
+  if (window.FLAG_ROOT_PATH === undefined) {
+    console.log("ROOT_PATH is not defined. Falling back to emtpy string");
+    window.ROOT_PATH = "";
+  } else {
+    window.ROOT_PATH = window.FLAG_ROOT_PATH;
+  }
+
+  // PROMETHEUS_SERVER_ADDRESS
+  if (window.FLAG_PROMETHEUS_SERVER_ADDRESS === undefined) {
+    console.log(
+      "PROMETHEUS_SERVER_ADDRESS is not defined. Falling back to emtpy string"
+    );
+    window.PROMETHEUS_SERVER_ADDRESS = "";
+  } else if (
+    window.FLAG_PROMETHEUS_SERVER_ADDRESS.startsWith(goTmplActionPrefix)
+  ) {
+    console.log(
+      "PROMETHEUS_SERVER_ADDRESS was not evaluated by the server. Falling back to empty string"
+    );
+    window.PROMETHEUS_SERVER_ADDRESS = "";
+  } else {
+  }
+
+  // READ_ONLY
+  if (window.FLAG_READ_ONLY === undefined) {
+    console.log("READ_ONLY is not defined. Falling back to false");
+    window.READ_ONLY = false;
+  } else if (window.FLAG_READ_ONLY.startsWith(goTmplActionPrefix)) {
+    console.log(
+      "READ_ONLY was not evaluated by the server. Falling back to false"
+    );
+    window.READ_ONLY = false;
+  } else {
+    window.READ_ONLY = window.FLAG_READ_ONLY === "true";
+  }
+}

ui/src/paths.ts

@@ -1,4 +1,4 @@
-export const paths = {
+export const paths = () => ({
   HOME: `${window.ROOT_PATH}/`,
   SETTINGS: `${window.ROOT_PATH}/settings`,
   SERVERS: `${window.ROOT_PATH}/servers`,
@@ -7,14 +7,14 @@ export const paths = {
   REDIS: `${window.ROOT_PATH}/redis`,
   TASK_DETAILS: `${window.ROOT_PATH}/queues/:qname/tasks/:taskId`,
   QUEUE_METRICS: `${window.ROOT_PATH}/q/metrics`,
-};
+});
 
 /**************************************************************
                         Path Helper functions
  **************************************************************/
 
 export function queueDetailsPath(qname: string, taskStatus?: string): string {
-  const path = paths.QUEUE_DETAILS.replace(":qname", qname);
+  const path = paths().QUEUE_DETAILS.replace(":qname", qname);
   if (taskStatus) {
     return `${path}?status=${taskStatus}`;
   }
@@ -22,7 +22,9 @@ export function queueDetailsPath(qname: string, taskStatus?: string): string {
 }
 
 export function taskDetailsPath(qname: string, taskId: string): string {
-  return paths.TASK_DETAILS.replace(":qname", qname).replace(":taskId", taskId);
+  return paths()
+    .TASK_DETAILS.replace(":qname", qname)
+    .replace(":taskId", taskId);
 }
 
 /**************************************************************