Refactor default headers to be injected dynamically (#367)

src-web/components/HeadersEditor.tsx

@@ -19,6 +19,7 @@ type Props = {
   forceUpdateKey: string;
   headers: HttpRequestHeader[];
   inheritedHeaders?: HttpRequestHeader[];
+  inheritedHeadersLabel?: string;
   stateKey: string;
   onChange: (headers: HttpRequestHeader[]) => void;
   label?: string;
@@ -28,11 +29,20 @@ export function HeadersEditor({
   stateKey,
   headers,
   inheritedHeaders,
+  inheritedHeadersLabel = 'Inherited',
   onChange,
   forceUpdateKey,
 }: Props) {
+  // Get header names defined at current level (case-insensitive)
+  const currentHeaderNames = new Set(
+    headers.filter((h) => h.name).map((h) => h.name.toLowerCase()),
+  );
+  // Filter inherited headers: must be enabled, have content, and not be overridden by current level
   const validInheritedHeaders =
-    inheritedHeaders?.filter((pair) => pair.enabled && (pair.name || pair.value)) ?? [];
+    inheritedHeaders?.filter(
+      (pair) =>
+        pair.enabled && (pair.name || pair.value) && !currentHeaderNames.has(pair.name.toLowerCase()),
+    ) ?? [];
   const hasInheritedHeaders = validInheritedHeaders.length > 0;
   return (
     <div
@@ -48,7 +58,7 @@ export function HeadersEditor({
           className="text-sm"
           summary={
             <HStack>
-              Inherited <CountBadge count={validInheritedHeaders.length} />
+              {inheritedHeadersLabel} <CountBadge count={validInheritedHeaders.length} />
             </HStack>
           }
         >

src-web/components/WorkspaceSettingsDialog.tsx

@@ -95,6 +95,7 @@ export function WorkspaceSettingsDialog({ workspaceId, hide, tab }: Props) {
       <TabContent value={TAB_HEADERS} className="overflow-y-auto h-full px-4">
         <HeadersEditor
           inheritedHeaders={inheritedHeaders}
+          inheritedHeadersLabel="Defaults"
           forceUpdateKey={workspace.id}
           headers={workspace.headers}
           onChange={(headers) => patchModel(workspace, { headers })}

src-web/hooks/useInheritedHeaders.ts

@@ -8,6 +8,7 @@ import type {
 } from '@yaakapp-internal/models';
 import { foldersAtom, workspacesAtom } from '@yaakapp-internal/models';
 import { atom, useAtomValue } from 'jotai';
+import { defaultHeaders } from '../lib/defaultHeaders';
 
 const ancestorsAtom = atom((get) => [...get(foldersAtom), ...get(workspacesAtom)]);
 
@@ -17,12 +18,12 @@ export function useInheritedHeaders(baseModel: HeaderModel | null) {
   const parents = useAtomValue(ancestorsAtom);
 
   if (baseModel == null) return [];
-  if (baseModel.model === 'workspace') return [];
+  if (baseModel.model === 'workspace') return defaultHeaders;
 
   const next = (child: HeaderModel): HttpRequestHeader[] => {
-    // Short-circuit
+    // Short-circuit at workspace level - return global defaults + workspace headers
     if (child.model === 'workspace') {
-      return [];
+      return [...defaultHeaders, ...child.headers];
     }
 
     // Recurse up the tree
@@ -40,5 +41,13 @@ export function useInheritedHeaders(baseModel: HeaderModel | null) {
     return [...headers, ...parent.headers];
   };
 
-  return next(baseModel);
+  const allHeaders = next(baseModel);
+
+  // Deduplicate by header name (case-insensitive), keeping the latest (most specific) value
+  const headersByName = new Map<string, HttpRequestHeader>();
+  for (const header of allHeaders) {
+    headersByName.set(header.name.toLowerCase(), header);
+  }
+
+  return Array.from(headersByName.values());
 }

src-web/lib/defaultHeaders.ts

@@ -0,0 +1,8 @@
+import type { HttpRequestHeader } from '@yaakapp-internal/models';
+import { invokeCmd } from './tauri';
+
+/**
+ * Global default headers fetched from the backend.
+ * These are static and fetched once on module load.
+ */
+export const defaultHeaders: HttpRequestHeader[] = await invokeCmd('cmd_default_headers');

src-web/lib/tauri.ts

@@ -12,6 +12,7 @@ type TauriCmd =
   | 'cmd_create_grpc_request'
   | 'cmd_curl_to_request'
   | 'cmd_decrypt_template'
+  | 'cmd_default_headers'
   | 'cmd_delete_all_grpc_connections'
   | 'cmd_delete_all_http_responses'
   | 'cmd_delete_send_history'