ctx.request.body is not a function

[jiaozaolan]

This is my code

import { Router } from "https://deno.land/x/oak/mod.ts";
const router = new Router();

router
.post("/example", async (ctx) => {
  const contentType = ctx.request.headers.get("Content-Type");

  if (contentType && contentType.includes("application/json")) {
    const body = await ctx.request.body({ type: "json" }).value;
    // 在这里可以访问到解析后的 JSON 数据
    console.log(body);
    ctx.response.body = "Received JSON data";
  } else if (contentType && contentType.includes("application/x-www-form-urlencoded")) {
    const body = await ctx.request.body({ type: "form" }).value;
    // 在这里可以访问到解析后的表单数据
    console.log(body);
    ctx.response.body = "Received form data";
  } else {
    ctx.response.body = "Unsupported Media Type";
  }
});
export default router;

The deno version is 1.42.1