完成deno后端测试用的接口

back-end/main.ts

@@ -1,7 +1,82 @@
-export function add(a: number, b: number): number {
-  return a + b;
+import { App, staticFiles, cors } from "fresh";
+import { define, type State } from "./utils.ts";
+
+export const app = new App<State>();
+
+app.use(cors({
+  origin: "*",
+  allowHeaders: ["*"],
+  allowMethods: ["POST", "GET", "OPTIONS"],
+  exposeHeaders: ["Content-Length", "X-Kuma-Revision"],
+  maxAge: 600,
+  credentials: true,
+}))
+
+app.use(staticFiles());
+
+// 模拟产品数据
+const mockProductsList = [
+  {
+    id: 1,
+    name: "Xiaomi Buds 5 Pro",
+    description: "高音质无线蓝牙耳机，续航可达30小时",
+    price: 1199.19,
+    imageUrl: "https://cdn.cnbj0.fds.api.mi-img.com/b2c-shopapi-pms/pms_1740638541.0557913.png",
+    stock: 2000,
+    categoryId: 1,
+  },
+  {
+    id: 2,
+    name: "机械键盘MK71pro",
+    description: "青轴机械键盘，全键无冲",
+    price: 899.00,
+    imageUrl: "https://cdn.cnbj0.fds.api.mi-img.com/b2c-shopapi-pms/67D4F43CD4C647AD8F45892D6567E14A.png",
+    stock: 1000,
+    categoryId: 1,
+  },
+  {
+    id: 3,
+    name: "Xiaomi Watch S4 Sport",
+    description: "多功能智能手表，支持心率监测和GPS",
+    price: 1699.00,
+    imageUrl: "https://cdn.cnbj0.fds.api.mi-img.com/b2c-shopapi-pms/pms_1721233615.78223053.png",
+    stock: 200,
+    categoryId: 1,
+  }
+];
+
+const Res = <T extends Array<Object> | Object>(data: T) => {
+  return JSON.stringify({
+    code: 200,
+    message: "success",
+    data: data
+  });
 }
 
-if (import.meta.main) {
-  console.log("Add 2 + 3 =", add(2, 3));
-}
+// http://127.0.0.1:3000/api/productsList
+app.get("/api/productsList", (ctx: { params: { name: any; }; }) => {
+  return new Response(Res(mockProductsList));
+});
+
+// http://127.0.0.1:3000/api/productsInfo?id=3
+app.get("/api/productsInfo", (req: Request, ctx: { params: { id: number; }; }) => {
+  const id = (new URL(req.url)).searchParams.get('id')
+
+  if (!id) {
+    return new Response(Res("缺少id参数"));
+  }
+
+  const result = mockProductsList.find(product => product.id == Number(id))
+  if (!result) {
+    return new Response(Res("找不到数据"));
+  }
+
+  return new Response(Res(result));
+});
+
+const exampleLoggerMiddleware = define.middleware((ctx: { req: { method: any; url: any; }; next: () => any; }) => {
+  console.log(`${ctx.req.method} ${ctx.req.url}`);
+  return ctx.next();
+});
+
+app.use(exampleLoggerMiddleware);