Axios then callback not working on successful Post request - node.js

Question

Been working on figuring out user login/register with react and why my axios is not calling .then on successful post request to my api.
Server.js
//Node packages
const path = require('path');
//Required NPM Packages
const express = require('express'),
app = express(),
session = require('express-session'),
cors = require('cors'),
bodyParser = require('body-parser'),
mongoose = require('mongoose'),
MongoStore = require('connect-mongo')(session),
methodOverride = require('method-override'),
passport = require('passport'),
LocalStrategy = require('passport-local');
//MongoDB models.
const Product = require('./models/Product');
const User = require('./models/User');
//Routes.
const indexRoute = require('./routes/index');
const demoRoute = require('./routes/demos');
const blogRoutes = require('./routes/blogs');
const userRoutes = require('./routes/users');
//Port.
const PORT = 5000;
const DATABASE_URI = require('./config/database');
const mongoOptions = { useNewUrlParser:true, useUnifiedTopology:true};
//Connect to mongoDB.
mongoose.connect(DATABASE_URI, mongoOptions);
const sessionOptions = {
secret: 'somesecretword',
resave: true,
saveUninitialized: true,
store: new MongoStore({ mongooseConnection: mongoose.connection })
}
//set session options
app.use(session(sessionOptions));
//Setup body-parser.
app.use(express.json());
app.use(bodyParser.urlencoded({extended:true}));
//Allow express/node to accept Cross-origin resource sharing.
app.use(cors());
app.use(express.static(path.join(__dirname, '..','client','build')));
//Setup method override.
app.use(methodOverride("_method"));
//Congifure passport.
app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());
app.use(function(req,res,next){
res.locals.currentUser = req.user;
next();
})
//register API routes to express.
app.use('/', indexRoute);
app.use('/demos', demoRoute);
app.use('/blogs', blogRoutes);
app.use('/users', userRoutes);
// //Register React routes to express
app.use('about', express.static(path.join(__dirname, '..','client','build')));
app.get('*', (req,res)=> {
res.sendFile(path.join(__dirname,'..','client','build','index.html'));
})
//listen to established port.
app.listen(PORT, () => {
console.log(`The server has started on port ${PORT}!`);
});
module.exports = app;
login route
router.post('/login', passport.authenticate('local'), (req, res) => {
console.log('success');
res.json({authenticated:true});
});
React front-end function
async function handleRegister(evt){
//Prevent default form redirect.
evt.preventDefault();
//Create a new user objec to pass into axios
const user = {
username: username,
password: password
}
//Send axios post request to nodeJS API.
await axios.post("http://*******/users/register", user)
.then((res) => {
console.log(res.data);
})
.catch((err) => {
console.log(err);
});
//Push react history back to index page.
}
Right now I'm using Passport.js with passport.local.mongoose Strategy and connect-mongo. When I go ahead and post to the login route with the correct users information, the callback on the back end returns success. As per the passport.authenticate method if auth is a success then we console.log and send res.json.
I've tried to use res.send, res.json, res.sendStatus but none of them seem to work. Am I missing some sort of setup with passport? As far as the documentation goes for passport-local-mongoose I shouldn't have to establish a config.
All I want to happen is that when I login I send a redirect to react and push the response route to react-router's history object via history.push(routeUrl);

Answer 1

I found out the problem. Was just an error on my part. Was working with the register function and not the login in function. The issue wasn't that I wasn't getting a response... Probably a queue for a break.