Login Validation Wrong React Node js - reactjs

Question

i am creating a simple login form using frontend react backend node js.while attempt to login login failure. if we type wrong email and password alert msg displays login success. i don't know why.my backend i tested through postman it is work well.check through react had a problem.what i tried so far i attached below.
import axios from "axios";
import { useState } from "react";
import { useNavigate } from 'react-router-dom';
function Login() {
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const navigate = useNavigate();
async function login(event) {
event.preventDefault();
try {
await axios.post("http://localhost:9992/student/login", {
email: email,
password: password,
});
alert("Login Successfully");
// navigate('/home');
} catch (err) {
alert("ogin Failed");
}
}
return (
<div>
<div class="container">
<div class="row">
<h2>Login</h2>
<hr/>
</div>
<div class="row">
<div class="col-sm-6">
<form>
<div class="form-group">
<label>email</label>
<input type="email" class="form-control" id="email" placeholder="Enter Name"
value={email}
onChange={(event) => {
setEmail(event.target.value);
}}
/>
</div>
<div class="form-group">
<label>password</label>
<input type="password" class="form-control" id="password" placeholder="Enter Fee"
value={password}
onChange={(event) => {
setPassword(event.target.value);
}}
/>
</div>
<button type="submit" class="btn btn-primary" onClick={login} >Login</button>
</form>
</div>
</div>
</div>
</div>
);

Answer 1

I am using the data value based on your comment.
Modify your login function as following:
async function login(event) {
event.preventDefault();
try {
const res = await axios.post("http://localhost:9992/student/login", {
email: email,
password: password,
});
const data = res.data;
if (data.status === true) {
alert("Login Successfully");
} else {
alert("Login failed")
}
} catch (err) {
alert("Error, please try again");
}
}