nodejs unable to display swagger page in nodejs
i wrote a simple code to test
```
const express = require('express')
const app = express()
const chalk = require('chalk');
const morgan = require("morgan");
const cors = require('cors');
const swaggerUI = require("swagger-ui-express");
const swaggerJsDoc = require("swagger-jsdoc");
require('dotenv').config();
require('./startup/routes')(app);
const options = {
definition: {
openapi: "3.0.0",
info: {
title: "Testing API",
version: "1.0.0",
description: "A simple Express Library API",
},
servers: [
{
},
],
},
apis: ["server.js"],
};
app.get("/hello",(req,res)=>
{
res.send("hello");
})
const port = process.env.APP_PORT;
// const swaggerDocs = swaggerJsDoc(swaggeroption);
// app.use('/api-doc',swaggerUi.serve,swaggerUi.setup(swaggerDocs));
const specs = swaggerJsDoc(options);
app.use("/api-docs", swaggerUI.serve, swaggerUI.setup(specs));
app.use(morgan());
app.use(cors());
app.listen(port,() => {
console.log(chalk.bold.green(`Listening on port ${port} . . .`));
});
```
but unable to display /api-docs please help
