feat: Add Download Button to UI for Knowledge Resource Source Files (#23320)

web/service/knowledge/use-document.ts

@@ -9,6 +9,8 @@ import { pauseDocIndexing, resumeDocIndexing } from '../datasets'
 import type { DocumentDetailResponse, DocumentListResponse, UpdateDocumentBatchParams } from '@/models/datasets'
 import { DocumentActionType } from '@/models/datasets'
 import type { CommonResponse } from '@/models/common'
+// Download document with authentication (sends Authorization header)
+import Toast from '@/app/components/base/toast'
 
 const NAME_SPACE = 'knowledge/document'
 
@@ -95,6 +97,21 @@ export const useSyncDocument = () => {
   })
 }
 
+// Download document with authentication (sends Authorization header)
+export const useDocumentDownload = () => {
+  return useMutation({
+    mutationFn: async ({ datasetId, documentId }: { datasetId: string; documentId: string }) => {
+      // The get helper automatically adds the Authorization header from localStorage
+      return get<CommonResponse>(`/datasets/${datasetId}/documents/${documentId}/upload-file`)
+    },
+    onError: (error: any) => {
+      // Show a toast notification if download fails
+      const message = error?.message || 'Download failed.'
+      Toast.notify({ type: 'error', message })
+    },
+  })
+}
+
 export const useSyncWebsite = () => {
   return useMutation({
     mutationFn: ({ datasetId, documentId }: UpdateDocumentBatchParams) => {