Getting an undefined token in backend - node.js

Question

Hello i am trying to use my token in my application after user is logged in but am getting an undefined response in my console. Below are my codes. How can i correct my code to be able to access token inside application and use to do other features of the application?
my controller
import User from "../models/user";
import Stripe from "stripe";
const stripe = Stripe(process.env.STRIPE_SECRET);
export const createConnectAccount = async (req, res) => {
console.log(req.user);
try {
const user = await User.findById(req.user._id).exec();
console.log("USER ==> ", user);
if (!user.stripe_account_id) {
const account = await stripe.accounts.create({
type: "express",
});
console.log("ACCOUNT ===>", account);
user.stripe_account_id = account.id;
user.save();
}
} catch (error) {
res.status(500).json();
}
};
my middleware
var { expressjwt: jwt } = require("express-jwt");
// req.user
export const requireSignin = jwt({
//secret, expiryDate
secret: process.env.JWT_SECRET,
algorithms: ["HS256"],
});
my routes
import express from "express";
const router = express.Router();
import { requireSignin } from "../middlewares";
import { createConnectAccount } from "../controllers/stripe";
router.post("/create-connect-account", requireSignin, createConnectAccount);
module.exports = router;
my auth controller
import User from "../models/user";
import jwt from "jsonwebtoken";
export const register = async (req, res) => {
console.log(req.body);
const { name, email, password } = req.body;
if (!name) return res.status(400).send("Name is required");
if (!password || password.length < 6)
return res
.status(400)
.send("Password is required and should be minimum 6 characters long");
let userExist = await User.findOne({ email }).exec();
if (userExist) return res.status(400).send("Email is taken");
const user = new User(req.body);
try {
await user.save();
console.log("User saved successfully", user);
return res.json({ ok: true });
} catch (err) {
console.log("CREATE USER FAILED", err);
return res.status(400).send("Error.Try again");
}
};
export const login = async (req, res) => {
// console.log(req.body);
const { email, password } = req.body;
try {
//check if user with credentials
let user = await User.findOne({ email }).exec();
// console.log("USER EXISTS", user);
if (!user) res.status(400).send("User with email not found");
//compare password
user.comparePassword(password, (err, match) => {
console.log("COMPARE PASSWORD IN LOGIN ERR", err);
if (!match || err) return res.status(400).send("Wrong password");
//("GENERATE A TOKEN THEN SEND AS RESPONSE TO CLIENT");
let token = jwt.sign({ _id: user._id }, process.env.JWT_SECRET, {
expiresIn: "7d",
});
res.json({
token,
user: {
_id: user._id,
name: user.name,
email: user.email,
createdAt: user.createdAt,
updatedAt: user.updatedAt,
},
});
});
} catch (err) {
console.log("LOGIN ERROR", err);
res.status(400).send("Signin failed");
}
};
my terminal output
POST /api/login 200 1142.309 ms - 349
undefined
POST /api/create-connect-account 500 9.092 ms - -
Headers
import axios from "axios";
export const createConnectAccount = async (token) => {
await axios.post(
`${process.env.REACT_APP_API}/create-connect-account`,
{},
{
headers: {
Authorization: `Bearer ${token}`,
},
}
);
};

Answer 1

I'm sorry to tell you your code has other errors in it.
My guess is that your res is not well written in auth controller, login function :
res.status(201).json({
token :token,
user: user
})
Also when reading your token trying to authenticate : it will be easier to use the same package than the one that sign it.
const jwt = require("jsonwebtoken");
exports. requireSignin = () => {
return async (req, res, next) => {
try {
const token = req?.headers?.authorization?.split(" ")[1];
const decodedToken = jwt.verify(token, process.env.JWT_SECRET);
const userId = decodedToken._id;
const user = await User.findOne({ _id: userId });
if (user) {
req.auth = {
user: user,
};
} else {
throw new Error("user not found");
}
next();
} catch (error) {
console.log(error.message);
res.status(401).json({ error: "failed to authenticate" });
}
};
};
But your code is pretty hard to read :
To make it easier to read and clearer for you, try and use joy or yup
Joi : https://www.npmjs.com/package/joi
Yup : https://www.npmjs.com/package/yup
With those you will be able to create middlewares to avoid wrong entries in your body : for example
if (!name) return res.status(400).send("Name is required");
is processed automatically with those packages
Also, you shouldn't use 'import' and 'require' in the same project, choose either one of them
I hope this will help