In this tutorial, we will learn how to create a login form in React JS. A login form is an essential feature for any web application that requires user authentication. We will be using React JS, a popular JavaScript library for building user interfaces, to create our login form.
Step 1: Set up your React project
To get started, make sure you have Node.js and npm installed on your machine. You can create a new React project by running the following command in your terminal:
npx create-react-app login-form
This will create a new directory called login-form
with all the necessary files to get started with a React project.
Step 2: Create the Login component
Inside the src
directory, create a new file called Login.js
. This file will contain the code for our login form component.
import React, { useState } from 'react';
const Login = () => {
const [username, setUsername] = useState('');
const [password, setPassword] = useState('');
const handleLogin = () => {
// Implement your login logic here
};
return (
<div>
<h2>Login</h2>
<input
type="text"
placeholder="Username"
value={username}
onChange={(e) => setUsername(e.target.value)}
/>
<input
type="password"
placeholder="Password"
value={password}
onChange={(e) => setPassword(e.target.value)}
/>
<button onClick={handleLogin}>Login</button>
</div>
);
};
export default Login;
In the Login
component, we are using the useState
hook to create two state variables, username
and password
, which will store the values entered by the user in the input fields. We also have a handleLogin
function that will be called when the user clicks the login button.
Step 3: Add the Login component to App.js
Open the App.js
file in the src
directory and import the Login
component. Replace the existing code with the following:
import React from 'react';
import Login from './Login';
function App() {
return (
<div className="App">
<Login />
</div>
);
}
export default App;
This will render the Login
component in the main App component when the application is loaded.
Step 4: Style the login form
You can style the login form using CSS. Create a new file called Login.css
in the src
directory and add the following styles:
h2 {
text-align: center;
}
input {
width: 100%;
padding: 10px;
margin-bottom: 10px;
}
button {
width: 100%;
padding: 10px;
background-color: blue;
color: white;
border: none;
cursor: pointer;
}
Import the CSS file in the Login.js
file:
import './Login.css';
Step 5: Implement the login logic
In the handleLogin
function in the Login.js
file, you can implement the login logic. For example, you can use the fetch
API to make a POST request to a server with the username and password entered by the user.
const handleLogin = () => {
fetch('http://example.com/login', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ username, password }),
})
.then((response) => {
if (response.ok) {
console.log('Login successful');
} else {
console.error('Login failed');
}
});
};
Make sure to replace the URL 'http://example.com/login'
with the actual URL of your login endpoint.
That’s it! You have successfully created a login form in React JS. You can now run your React application by running the following command in your terminal:
npm start
Open your browser and navigate to http://localhost:3000
to see your login form in action.
Una pregunta, hay diferencia si uso Reactstrap o si uso Bootstrap.
Super
Used on my project thanx man loved.
thank you soo much brotherrrr
Great Tutorial
5:15 what did you write inplace of '#' in href='#' ?
thank you so much
me salio muy bieen , buen video para practicar o si quieres customisar un login , gracias bro !
Awesome tutorial!
where do i can find rafce?
I mean… This is just HTML and CSS wrapped in a React component.
Muito obrigado pela ajuda.
Thanks, this actually helped me a whole lot
way pulos may bayad
thanks
thnks u very helpful
it worked, i hope you continue this and create the register form, because i am having a hard time to toggle.
it's rather a css tutorial than react tutorial
What is the theme? 🙂
Thank you.