@clerk/nextjs

What is @clerk/nextjs?

@clerk/nextjs is a package that provides authentication and user management functionalities for Next.js applications. It offers a range of features including user sign-up, sign-in, and profile management, as well as handling authentication states and protecting routes.

What are @clerk/nextjs's main functionalities?

User Sign-Up

This feature allows you to add a user sign-up component to your Next.js application. The SignUp component handles the entire sign-up process, including form validation and user creation.

import { SignUp } from '@clerk/nextjs';

export default function SignUpPage() {
  return <SignUp />;
}

User Sign-In

This feature allows you to add a user sign-in component to your Next.js application. The SignIn component manages the sign-in process, including form validation and authentication.

import { SignIn } from '@clerk/nextjs';

export default function SignInPage() {
  return <SignIn />;
}

User Profile Management

This feature allows you to add a user profile management component to your Next.js application. The UserProfile component enables users to view and update their profile information.

import { UserProfile } from '@clerk/nextjs';

export default function UserProfilePage() {
  return <UserProfile />;
}

Authentication State

This feature allows you to manage and display authentication states in your Next.js application. The useAuth hook provides information about the current authentication state and the authenticated user.

import { useAuth } from '@clerk/nextjs';

export default function AuthStateComponent() {
  const { isSignedIn, user } = useAuth();

  if (isSignedIn) {
    return <div>Welcome, {user.firstName}!</div>;
  } else {
    return <div>Please sign in.</div>;
  }
}

Protected Routes

This feature allows you to protect routes in your Next.js application. The withAuth higher-order component ensures that only authenticated users can access the protected page.

import { withAuth } from '@clerk/nextjs';

function ProtectedPage() {
  return <div>This is a protected page.</div>;
}

export default withAuth(ProtectedPage);

Other packages similar to @clerk/nextjs

next-auth

next-auth is a complete open-source authentication solution for Next.js applications. It supports various authentication providers, including OAuth, email/password, and custom credentials. Compared to @clerk/nextjs, next-auth offers more flexibility in terms of customization and provider support but may require more configuration.

firebase

Firebase is a comprehensive app development platform that includes authentication services. Firebase Authentication supports multiple authentication methods, including email/password, phone, and social providers. While Firebase offers a broader range of services beyond authentication, it may be more complex to set up compared to @clerk/nextjs.

auth0

Auth0 is a flexible, drop-in solution to add authentication and authorization services to your applications. It supports a wide range of identity providers and offers extensive customization options. Compared to @clerk/nextjs, Auth0 provides more enterprise-level features but can be more expensive and complex to integrate.

README

@clerk/nextjs

Clerk SDK for authentication and user management in your Next.js application.

For instructions on how to get started go to Clerk.dev official Next.js documentation.