TypeError - ctx.request.body is not a function

I am trying making a simple RESTApi using Deno and Oak. Why am I getting this error

TypeError - ctx.request.body is not a functionrequest: { url: "http://localhost:8000/todos", method: "POST", hasBody: true }response: { status: 500, type: "text", hasBody: true, writable: true }

This is the part of the code where I am getting this error.

import { Router } from 'https://deno.land/x/oak@v16.0.0/mod.ts';const router = new Router();interface Todo {  id: string;  text: string;}let todos: Array<Todo> = [];router.get('/todos', (ctx, _) => {  ctx.response.body = { todos: todos };});router.post('/todos', async (ctx) => {  const reqBody = await ctx.request.body(); <--here  console.log(reqBody);});router.put('/todos/:todoId', (ctx, _) => {});router.delete('/todos/:todoId', (ctx, _) => {});export default router;

Here is my app.ts file

import { Application } from 'https://deno.land/x/oak/mod.ts';import todoRoutes from './routes/todos.ts';const app = new Application();app.use(todoRoutes.routes());app.use(todoRoutes.allowedMethods());await app.listen({ port: 8000 });

I have searched all the answers on the internet. Everywhere they are using ctx.request.body()

But when I use it I am getting the error.