xiaoai/app.js

const Koa = require("koa");
const router = require("koa-router")();
const body = require("koa-bodyparser");
const app = new Koa();

app.use(body());
app.use(router.routes());

app.use(async (ctx) => {
    console.log(ctx.request.body);
    ctx.body = ctx.request.body;
});

app.listen(3000);