Node express Typescript:邮递员不断发送post请求

image . 我看不出我的代码有什么问题。我不知道post请求有什么问题。附言: This is my first time I am using node-typescript express server

这基本上是我所有的快递代码

import express, { Application, Response, Request } from 'express';
import cors from 'cors';
import morgan from 'morgan';
import helmet from 'helmet';


const app: Application = express();
const port = 8000;


app.use(cors());
app.use(morgan("common"));
app.use(helmet());
app.use(express.json());


app.post('/api', (req: Request, res: Response) => {

   console.log(req.body.Item); // I get the data

 
})

app.listen(port, () => {
  console.log(`App listening at http://localhost:${port}`)
})

这是我的命令脚本

  "scripts": {
    "build": "tsc -p .",
    "start": "ts-node server.ts",
    "server": "ts-node server.ts"
  },