diff --git a/backend/src/app.ts b/backend/src/app.ts
index 1150e5b..5d8b05f 100644
--- a/backend/src/app.ts
+++ b/backend/src/app.ts
@@ -11,17 +11,11 @@ console.log = Debug('invoiceIssuer:app.ts')
 const app = new Koa()
 app.use(koaBody())
 
-/**
- * GET /
- * @summary 返回欢迎信息。通常用于检查服务器是否正常运行。
- * @param {Koa.Context} ctx - Koa context object
- */
-const getRoot = route.get('/', (ctx) => {
-    ctx.body = 'Hello World'
-})
+app.use(route.get('/', (ctx) => {
+	ctx.body = 'Hello World'
+}))
 
-
-const postPayer = route.post('/payer', async (ctx) => {
+app.use(route.post('/payer', async (ctx) => {
 	// TODO: 请求头验证 bearer token
 	
 	const { name, address, email, abn } = ctx.request.body
@@ -41,16 +35,9 @@ const postPayer = route.post('/payer', async (ctx) => {
 			ctx.throw(500, 'unknown_issues')
 		}
 	}
-})
-
-// 导出路由
-export { getRoot, postPayer }
+}))
 
 const port = parseInt(process.env.PORT ?? '3000')
 app.listen(port, () => {
-    /**
-     * Server listening callback
-     * @summary Logs the server start message
-     */
-    console.log(`Server is running at http://localhost:${port}`)
+	console.log(`Server is running at http://localhost:${port}`)
 })
\ No newline at end of file
diff --git a/backend/src/func/createPayer.ts b/backend/src/func/createPayer.ts
index 63e5729..f3f0932 100644
--- a/backend/src/func/createPayer.ts
+++ b/backend/src/func/createPayer.ts
@@ -6,5 +6,5 @@
  * @param {string} email - 付款人的电子邮件地址
  * @param {string} abn - 付款人的澳大利亚商业号码
  */
-export default async (name: string, address: string, email: string, abn?: string) => {
+export default async (name: string, address: string[], email: string, abn?: string) => {
 }
\ No newline at end of file