Estoy trabajando en un proyecto de aplicación de chat y cada vez que intento iniciar sesión, me da estos errores. Cada vez que intento iniciar sesión en la aplicación, da errores. Estoy usando axious, Stream API, Cookies, Expressjs y React.

Error:

 POST http://localhost:5000/auth/signup net::ERR_CONNECTION_REFUSED createError.js:16 Uncaught (in promise) Error: Network Error at createError (createError.js:16) at XMLHttpRequest.handleError (xhr.js:117)

Archivo de autenticación:

 import React, { useState } from 'react'; import Cookies from 'universal-cookie'; import axios from 'axios'; import signinImage from '../assets/signup.jpg'; const cookies = new Cookies(); const initialState = { fullName: '', username: '', password: '', confirmPassword: '', phoneNumber: '', avatarURL: '', } const Auth = () => { const [form, setForm] = useState(initialState); const [isSignup, setIsSignup] = useState(true); const handleChange = (e) => { setForm({ ...form, [e.target.name]: e.target.value }); } const handleSubmit = async (e) => { e.preventDefault(); const { username, password, phoneNumber, avatarURL } = form; const URL = 'http://localhost:5000/auth'; // const URL = 'https://medical-pager.herokuapp.com/auth'; export default Auth

Lado del servidor:

 import express, { json, urlencoded } from 'express'; import cors from 'cors'; import authRoutes from "./routes/auth.js"; const app = express(); const PORT = process.env.PORT || 5000; require('dotenv').config(); const accountSid = process.env.TWILIO_ACCOUNT_SID; const authToken = process.env.TWILIO_AUTH_TOKEN; const messagingServiceSid = process.env.TWILIO_MESSAGING_SERVICE_SID; const twilioClient = require('twilio')(accountSid, authToken); app.use(cors()); app.use(json()); app.use(urlencoded()); app.get('/', (req, res) => { res.send('hello, world'); });