diff --git a/packages/backend/src/api/controllers/api-key.controller.ts b/packages/backend/src/api/controllers/api-key.controller.ts
index 97b2b95..7f27025 100644
--- a/packages/backend/src/api/controllers/api-key.controller.ts
+++ b/packages/backend/src/api/controllers/api-key.controller.ts
@@ -16,7 +16,7 @@ const generateApiKeySchema = z.object({
 });
 export class ApiKeyController {
 	private userService = new UserService();
-	public async generateApiKey(req: Request, res: Response) {
+	public generateApiKey = async (req: Request, res: Response) => {
 		try {
 			const { name, expiresInDays } = generateApiKeySchema.parse(req.body);
 			if (!req.user || !req.user.sub) {
@@ -45,9 +45,9 @@ export class ApiKeyController {
 			}
 			res.status(500).json({ message: req.t('errors.internalServerError') });
 		}
-	}
+	};
 
-	public async getApiKeys(req: Request, res: Response) {
+	public getApiKeys = async (req: Request, res: Response) => {
 		if (!req.user || !req.user.sub) {
 			return res.status(401).json({ message: 'Unauthorized' });
 		}
@@ -55,9 +55,9 @@ export class ApiKeyController {
 		const keys = await ApiKeyService.getKeys(userId);
 
 		res.status(200).json(keys);
-	}
+	};
 
-	public async deleteApiKey(req: Request, res: Response) {
+	public deleteApiKey = async (req: Request, res: Response) => {
 		const { id } = req.params;
 		if (!req.user || !req.user.sub) {
 			return res.status(401).json({ message: 'Unauthorized' });
@@ -70,5 +70,5 @@ export class ApiKeyController {
 		await ApiKeyService.deleteKey(id, userId, actor, req.ip || 'unknown');
 
 		res.status(204).send({ message: req.t('apiKeys.deleteSuccess') });
-	}
+	};
 }
diff --git a/packages/backend/src/services/ApiKeyService.ts b/packages/backend/src/services/ApiKeyService.ts
index 64fe4fb..0f2a6a9 100644
--- a/packages/backend/src/services/ApiKeyService.ts
+++ b/packages/backend/src/services/ApiKeyService.ts
@@ -20,16 +20,17 @@ export class ApiKeyService {
 		expiresAt.setDate(expiresAt.getDate() + expiresInDays);
 		const keyHash = createHash('sha256').update(key).digest('hex');
 
-		await db.insert(apiKeys).values({
-			userId,
-			name,
-			key: CryptoService.encrypt(key),
-			keyHash,
-			expiresAt,
-		});
+		try {
+			await db.insert(apiKeys).values({
+				userId,
+				name,
+				key: CryptoService.encrypt(key),
+				keyHash,
+				expiresAt,
+			});
 
-		await this.auditService.createAuditLog({
-			actorIdentifier: actor.id,
+			await this.auditService.createAuditLog({
+				actorIdentifier: actor.id,
 			actionType: 'GENERATE',
 			targetType: 'ApiKey',
 			targetId: name,
@@ -40,6 +41,9 @@ export class ApiKeyService {
 		});
 
 		return key;
+		} catch (error) {
+			throw error;
+		}
 	}
 
 	public static async getKeys(userId: string): Promise<ApiKey[]> {
diff --git a/packages/frontend/src/routes/api/[...slug]/+server.ts b/packages/frontend/src/routes/api/[...slug]/+server.ts
index 297ff85..e8ace6e 100644
--- a/packages/frontend/src/routes/api/[...slug]/+server.ts
+++ b/packages/frontend/src/routes/api/[...slug]/+server.ts
@@ -10,10 +10,20 @@ const handleRequest: RequestHandler = async ({ request, params, fetch }) => {
 	const targetUrl = `${BACKEND_URL}/${slug}${url.search}`;
 
 	try {
+		let body: ArrayBuffer | null = null;
+		const headers = new Headers(request.headers);
+
+		if (request.method !== 'GET' && request.method !== 'HEAD') {
+			body = await request.arrayBuffer();
+			if (body.byteLength > 0) {
+				headers.set('Content-Length', String(body.byteLength));
+			}
+		}
+
 		const proxyRequest = new Request(targetUrl, {
 			method: request.method,
-			headers: request.headers,
-			body: request.body,
+			headers: headers,
+			body: body,
 			duplex: 'half',
 		} as RequestInit);