large query reduction (#5754)

# Description of Changes

Reduce endpoint-availability call so that an empty param to it returns
all endpoints to avoid pointlessly large http headers


Before:
GET
/api/v1/config/endpoints-availability?endpoints=compress-pdf%2Crotate-pdf%2Cmerge-pdfs%2Csplit-pages%2Cocr-pdf
  for all 74 tools

  After:
  GET /api/v1/config/endpoints-availability
---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

app/common/src/main/java/stirling/software/SPDF/config/EndpointConfiguration.java

@@ -606,6 +606,12 @@ public class EndpointConfiguration {
         return endpointGroups.getOrDefault(group, new HashSet<>());
     }
 
+    public Set<String> getAllEndpoints() {
+        return endpointGroups.values().stream()
+                .flatMap(Set::stream)
+                .collect(java.util.stream.Collectors.toSet());
+    }
+
     private boolean isToolGroup(String group) {
         return "qpdf".equals(group)
                 || "OCRmyPDF".equals(group)

app/core/src/main/java/stirling/software/SPDF/controller/api/misc/ConfigController.java

@@ -1,5 +1,6 @@
 package stirling.software.SPDF.controller.api.misc;
 
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -11,9 +12,6 @@ import org.springframework.web.bind.annotation.RequestParam;
 
 import io.swagger.v3.oas.annotations.Hidden;
 
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.Size;
-
 import lombok.extern.slf4j.Slf4j;
 
 import stirling.software.SPDF.config.EndpointConfiguration;
@@ -320,11 +318,13 @@ public class ConfigController {
 
     @GetMapping("/endpoints-availability")
     public ResponseEntity<Map<String, EndpointAvailability>> getEndpointAvailability(
-            @RequestParam(name = "endpoints")
-                    @Size(min = 1, max = 100, message = "Must provide between 1 and 100 endpoints")
-                    List<@NotBlank String> endpoints) {
+            @RequestParam(name = "endpoints", required = false) List<String> endpoints) {
+        Collection<String> toCheck =
+                (endpoints == null || endpoints.isEmpty())
+                        ? endpointConfiguration.getAllEndpoints()
+                        : endpoints;
         Map<String, EndpointAvailability> result = new HashMap<>();
-        for (String endpoint : endpoints) {
+        for (String endpoint : toCheck) {
             String trimmedEndpoint = endpoint.trim();
             result.put(
                     trimmedEndpoint,

app/core/src/main/resources/application.properties

@@ -38,6 +38,7 @@ spring.devtools.livereload.enabled=true
 spring.devtools.restart.exclude=stirling.software.proprietary.security/**
 spring.web.resources.mime-mappings.webmanifest=application/manifest+json
 spring.mvc.async.request-timeout=${SYSTEM_CONNECTIONTIMEOUTMILLISECONDS:1200000}
+server.tomcat.max-http-header-size=32768
 
 spring.datasource.url=jdbc:h2:file:./configs/stirling-pdf-DB-2.3.232;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;MODE=PostgreSQL
 spring.datasource.driver-class-name=org.h2.Driver

frontend/src/core/hooks/useEndpointConfig.ts

@@ -2,8 +2,8 @@ import { useState, useEffect } from 'react';
 import apiClient from '@app/services/apiClient';
 import type { EndpointAvailabilityDetails } from '@app/types/endpointAvailability';
 
-// Track globally fetched endpoint sets to prevent duplicate fetches across components
-const globalFetchedSets = new Set<string>();
+// Track whether we've done the global fetch to prevent duplicate requests
+let globalFetchDone = false;
 const globalEndpointCache: Record<string, EndpointAvailabilityDetails> = {};
 
 /**
@@ -72,17 +72,17 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
   const [error, setError] = useState<string | null>(null);
 
   const fetchAllEndpointStatuses = async (force = false) => {
-    const endpointsKey = [...endpoints].sort().join(',');
-
-    // Skip if we already fetched these exact endpoints globally
-    if (!force && globalFetchedSets.has(endpointsKey)) {
-      console.debug('[useEndpointConfig] Already fetched these endpoints globally, using cache');
+    // Skip if already fetched globally and not forced
+    if (!force && globalFetchDone) {
+      console.debug('[useEndpointConfig] Using global cache');
       const cached = endpoints.reduce(
         (acc, endpoint) => {
           const cachedDetails = globalEndpointCache[endpoint];
           if (cachedDetails) {
             acc.status[endpoint] = cachedDetails.enabled;
             acc.details[endpoint] = cachedDetails;
+          } else {
+            acc.status[endpoint] = true;
           }
           return acc;
         },
@@ -93,6 +93,7 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
       setLoading(false);
       return;
     }
+
     if (!endpoints || endpoints.length === 0) {
       setEndpointStatus({});
       setEndpointDetails({});
@@ -103,45 +104,21 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
     try {
       setLoading(true);
       setError(null);
-      console.debug('[useEndpointConfig] Fetching endpoint statuses', { count: endpoints.length, force });
+      console.debug('[useEndpointConfig] Fetching all endpoint statuses from server');
 
-      // Check which endpoints we haven't fetched yet
-      const newEndpoints = endpoints.filter(ep => !(ep in globalEndpointCache));
-      if (newEndpoints.length === 0) {
-        console.debug('[useEndpointConfig] All endpoints already in global cache');
-        const cached = endpoints.reduce(
-          (acc, endpoint) => {
-            const cachedDetails = globalEndpointCache[endpoint];
-            if (cachedDetails) {
-              acc.status[endpoint] = cachedDetails.enabled;
-              acc.details[endpoint] = cachedDetails;
-            }
-            return acc;
-          },
-          { status: {} as Record<string, boolean>, details: {} as Record<string, EndpointAvailabilityDetails> }
-        );
-        setEndpointStatus(cached.status);
-        setEndpointDetails(prev => ({ ...prev, ...cached.details }));
-        globalFetchedSets.add(endpointsKey);
-        setLoading(false);
-        return;
-      }
+      // Fetch all endpoints at once - no query params needed
+      const response = await apiClient.get<Record<string, EndpointAvailabilityDetails>>(`/api/v1/config/endpoints-availability`);
 
-      // Use batch API for efficiency - only fetch new endpoints
-      const endpointsParam = newEndpoints.join(',');
-
-      const response = await apiClient.get<Record<string, EndpointAvailabilityDetails>>(`/api/v1/config/endpoints-availability?endpoints=${encodeURIComponent(endpointsParam)}`);
-      const statusMap = response.data;
-
-      // Update global cache with new results
-      Object.entries(statusMap).forEach(([endpoint, details]) => {
+      // Populate global cache with all results
+      Object.entries(response.data).forEach(([endpoint, details]) => {
         globalEndpointCache[endpoint] = {
           enabled: details?.enabled ?? true,
           reason: details?.reason ?? null,
         };
       });
+      globalFetchDone = true;
 
-      // Get all requested endpoints from cache (including previously cached ones)
+      // Return status for the requested endpoints
       const fullStatus = endpoints.reduce(
         (acc, endpoint) => {
           const cachedDetails = globalEndpointCache[endpoint];
@@ -158,17 +135,17 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
 
       setEndpointStatus(fullStatus.status);
       setEndpointDetails(prev => ({ ...prev, ...fullStatus.details }));
-      globalFetchedSets.add(endpointsKey);
     } catch (err: any) {
       // On 401 (auth error), use optimistic fallback instead of disabling
       if (err.response?.status === 401) {
         console.warn('[useEndpointConfig] 401 error - using optimistic fallback');
+        endpoints.forEach(endpoint => {
+          globalEndpointCache[endpoint] = { enabled: true, reason: null };
+        });
         const optimisticStatus = endpoints.reduce(
           (acc, endpoint) => {
-            const optimisticDetails: EndpointAvailabilityDetails = { enabled: true, reason: null };
             acc.status[endpoint] = true;
-            acc.details[endpoint] = optimisticDetails;
-            globalEndpointCache[endpoint] = optimisticDetails;
+            acc.details[endpoint] = { enabled: true, reason: null };
             return acc;
           },
           { status: {} as Record<string, boolean>, details: {} as Record<string, EndpointAvailabilityDetails> }
@@ -181,14 +158,13 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
 
       const errorMessage = err instanceof Error ? err.message : 'Unknown error occurred';
       setError(errorMessage);
-      console.error('[EndpointConfig] Failed to check multiple endpoints:', err);
+      console.error('[EndpointConfig] Failed to check endpoints:', err);
 
       // Fallback: assume all endpoints are enabled on error (optimistic)
       const optimisticStatus = endpoints.reduce(
         (acc, endpoint) => {
-          const optimisticDetails: EndpointAvailabilityDetails = { enabled: true, reason: null };
           acc.status[endpoint] = true;
-          acc.details[endpoint] = optimisticDetails;
+          acc.details[endpoint] = { enabled: true, reason: null };
           return acc;
         },
         { status: {} as Record<string, boolean>, details: {} as Record<string, EndpointAvailabilityDetails> }
@@ -208,8 +184,7 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
   useEffect(() => {
     const handleJwtAvailable = () => {
       console.debug('[useEndpointConfig] JWT available event - clearing cache for refetch with auth');
-      // Clear the global cache to allow refetch with JWT
-      globalFetchedSets.clear();
+      globalFetchDone = false;
       Object.keys(globalEndpointCache).forEach(key => delete globalEndpointCache[key]);
       fetchAllEndpointStatuses(true);
     };

frontend/src/desktop/hooks/useEndpointConfig.ts

@@ -190,10 +190,8 @@ export function useMultipleEndpointsEnabled(endpoints: string[]): {
     try {
       setError(null);
 
-      const endpointsParam = endpoints.join(',');
-
       const response = await apiClient.get<Record<string, EndpointAvailabilityDetails>>(
-        `/api/v1/config/endpoints-availability?endpoints=${encodeURIComponent(endpointsParam)}`,
+        `/api/v1/config/endpoints-availability`,
         {
           suppressErrorToast: true,
         }