Why my express server's api endpoints calls are pending?

I am running an express server that has some REST API endpoints including authentication endpoint: http://localhost:3000/login using jwt (json web token), the server run but when I used postman and several other methods to call the endpoint I keep waiting for the results.

I created an express server in the nodejs environment like so :

require("dotenv").config()const express = require('express')const app = express()const jwt = require('jsonwebtoken')app.use(express.json)const posts = [    {        username: "kyle",        name: "post1"    },    {        username: "Tyler",        name: "post2"    },]const authenticateToken = (request, response, next) => {    const authHeader = request.headers['authorization']    const token = authHeader && authHeader.split('')[1]    if(token === null) { return response.sendStatus(401)}    jwt.verify(token , process.env.ACCESS_TOKEN_SECRET_KEY, (err, user) => {        if(err) return response.sendStatus(403)        request.user = user        next()    })}app.get("/posts", authenticateToken, (request, response) => {    const filteredPosts = posts.filter(post => post.username === request.user.username)    response.json(filteredPosts)})app.post("/login", (request, response) => {    //authenticate the user    const username = request.body.username    const user = {username: username}    const accessToken = jwt.sign(user, process.env.ACCESS_TOKEN_KEY)    response.json({accessToken: accessToken})})app.listen(3000, () => {    console.log(`app is lestening on port: 3000`)})

I run the server successfully using the command : node server.js

and use postman like so :postman dashboard where the call is made

I expected the request to be treated and I will have the access token as a response, but the request kept pending, I tried using multiple ways to call the api endpoint and I tried to update the nodejs version and creating another project but this didn't work

the rest client vscode approach

here is my package.json file:

{"name": "api","version": "1.0.0","main": "index.js","scripts": {"test": "echo \"Error: no test specified\" && exit 1"  },"author": "","license": "ISC","description": "","dependencies": {"dotenv": "^16.4.5","express": "^4.19.2","jsonwebtoken": "^9.0.2"  }}