refactor: Improve API header management via utility functions

tools/server/webui/src/lib/services/chat.ts

@@ -1,4 +1,5 @@
 import { config } from '$lib/stores/settings.svelte';
+import { getJsonHeaders } from '$lib/utils/api-headers';
 import { selectedModelName } from '$lib/stores/models.svelte';
 import { isRouterMode, propsStore } from '$lib/stores/props.svelte';
 import type {
@@ -201,14 +202,9 @@ export class ChatService {
 		}
 
 		try {
-			const apiKey = currentConfig.apiKey?.toString().trim();
-
 			const response = await fetch(`./v1/chat/completions`, {
 				method: 'POST',
-				headers: {
-					'Content-Type': 'application/json',
-					...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-				},
+				headers: getJsonHeaders(),
 				body: JSON.stringify(requestBody),
 				signal: abortController.signal
 			});
@@ -706,14 +702,8 @@ export class ChatService {
 	 */
 	static async getServerProps(): Promise<ApiLlamaCppServerProps> {
 		try {
-			const currentConfig = config();
-			const apiKey = currentConfig.apiKey?.toString().trim();
-
 			const response = await fetch(`./props`, {
-				headers: {
-					'Content-Type': 'application/json',
-					...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-				}
+				headers: getJsonHeaders()
 			});
 
 			if (!response.ok) {
@@ -733,14 +723,8 @@ export class ChatService {
 	 */
 	static async getModels(): Promise<ApiModelListResponse> {
 		try {
-			const currentConfig = config();
-			const apiKey = currentConfig.apiKey?.toString().trim();
-
 			const response = await fetch(`./models`, {
-				headers: {
-					'Content-Type': 'application/json',
-					...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-				}
+				headers: getJsonHeaders()
 			});
 
 			if (!response.ok) {

tools/server/webui/src/lib/services/models.ts

@@ -1,6 +1,6 @@
 import { base } from '$app/paths';
-import { config } from '$lib/stores/settings.svelte';
 import { ServerModelStatus } from '$lib/enums';
+import { getJsonHeaders } from '$lib/utils/api-headers';
 import type {
 	ApiModelListResponse,
 	ApiModelDataEntry,
@@ -26,16 +26,6 @@ import type {
  * - ModelsStore: Primary consumer for model state management
  */
 export class ModelsService {
-	private static getHeaders(): Record<string, string> {
-		const currentConfig = config();
-		const apiKey = currentConfig.apiKey?.toString().trim();
-
-		return {
-			'Content-Type': 'application/json',
-			...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-		};
-	}
-
 	// ─────────────────────────────────────────────────────────────────────────────
 	// MODEL + ROUTER mode - OpenAI-compatible API
 	// ─────────────────────────────────────────────────────────────────────────────
@@ -46,7 +36,7 @@ export class ModelsService {
 	 */
 	static async list(): Promise<ApiModelListResponse> {
 		const response = await fetch(`${base}/v1/models`, {
-			headers: this.getHeaders()
+			headers: getJsonHeaders()
 		});
 
 		if (!response.ok) {
@@ -66,7 +56,7 @@ export class ModelsService {
 	 */
 	static async listRouter(): Promise<ApiRouterModelsListResponse> {
 		const response = await fetch(`${base}/models`, {
-			headers: this.getHeaders()
+			headers: getJsonHeaders()
 		});
 
 		if (!response.ok) {
@@ -90,7 +80,7 @@ export class ModelsService {
 
 		const response = await fetch(`${base}/models/load`, {
 			method: 'POST',
-			headers: this.getHeaders(),
+			headers: getJsonHeaders(),
 			body: JSON.stringify(payload)
 		});
 
@@ -110,7 +100,7 @@ export class ModelsService {
 	static async unload(modelId: string): Promise<ApiRouterModelsUnloadResponse> {
 		const response = await fetch(`${base}/models/unload`, {
 			method: 'POST',
-			headers: this.getHeaders(),
+			headers: getJsonHeaders(),
 			body: JSON.stringify({ model: modelId })
 		});
 
@@ -128,7 +118,7 @@ export class ModelsService {
 	 */
 	static async getStatus(modelId: string): Promise<ApiRouterModelsStatusResponse> {
 		const response = await fetch(`${base}/models/status?model=${encodeURIComponent(modelId)}`, {
-			headers: this.getHeaders()
+			headers: getJsonHeaders()
 		});
 
 		if (!response.ok) {

tools/server/webui/src/lib/services/props.ts

@@ -1,4 +1,4 @@
-import { config } from '$lib/stores/settings.svelte';
+import { getAuthHeaders } from '$lib/utils/api-headers';
 
 /**
  * PropsService - Server properties management
@@ -22,13 +22,8 @@ export class PropsService {
 	 * @throws {Error} If the request fails or returns invalid data
 	 */
 	static async fetch(): Promise<ApiLlamaCppServerProps> {
-		const currentConfig = config();
-		const apiKey = currentConfig.apiKey?.toString().trim();
-
 		const response = await fetch('./props', {
-			headers: {
-				...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-			}
+			headers: getAuthHeaders()
 		});
 
 		if (!response.ok) {
@@ -49,16 +44,11 @@ export class PropsService {
 	 * @throws {Error} If the request fails or returns invalid data
 	 */
 	static async fetchForModel(modelId: string): Promise<ApiLlamaCppServerProps> {
-		const currentConfig = config();
-		const apiKey = currentConfig.apiKey?.toString().trim();
-
 		const url = new URL('./props', window.location.href);
 		url.searchParams.set('model', modelId);
 
 		const response = await fetch(url.toString(), {
-			headers: {
-				...(apiKey ? { Authorization: `Bearer ${apiKey}` } : {})
-			}
+			headers: getAuthHeaders()
 		});
 
 		if (!response.ok) {

tools/server/webui/src/lib/utils/api-headers.ts

@@ -0,0 +1,22 @@
+import { config } from '$lib/stores/settings.svelte';
+
+/**
+ * Get authorization headers for API requests
+ * Includes Bearer token if API key is configured
+ */
+export function getAuthHeaders(): Record<string, string> {
+	const currentConfig = config();
+	const apiKey = currentConfig.apiKey?.toString().trim();
+
+	return apiKey ? { Authorization: `Bearer ${apiKey}` } : {};
+}
+
+/**
+ * Get standard JSON headers with optional authorization
+ */
+export function getJsonHeaders(): Record<string, string> {
+	return {
+		'Content-Type': 'application/json',
+		...getAuthHeaders()
+	};
+}