Introduction:

Auth0 is a cloud-based identity platform that allows developers to easily add authentication and authorization capabilities to their applications. It provides a range of tools and services to help developers implement secure and seamless authentication and authorization workflows, including support for social identity providers, single sign-on (SSO), multi-factor authentication (MFA), and more.

With Auth0, developers can quickly integrate user authentication and authorization into their applications, without having to spend time building and managing these capabilities themselves. This can help to improve the security and usability of their applications, and reduce the risk of data breaches and other security incidents.

Why to choose Auth0:

1. Security: Auth0 provides advanced security features such as multi-factor authentication (MFA), anomaly detection, brute-force protection, and continuous monitoring to help protect your applications and users from security threats.
2. Flexibility: Auth0 offers a wide range of authentication and authorization methods, including social logins, passwordless authentication, and multi-factor authentication. It also supports various protocols and standards such as OAuth 2.0, OpenID Connect, and SAML, making it easy to integrate with a wide range of applications and systems.
3. Scalability: Auth0 is designed to handle millions of users and thousands of applications, so it can scale to meet the needs of large and growing businesses.
4. Developer-friendly: Auth0 provides a set of APIs and SDKs that allow developers to easily integrate authentication and authorization into their applications, regardless of the programming language or framework they are using.
5. User experience: Auth0 offers a seamless user experience, allowing users to easily authenticate with their preferred identity provider, whether it’s social logins or enterprise identity providers like Active Directory

Create Application in auth0:

1. Firstly, you have to login into auth0 by auth0
2. To integrate auth0 with spring security, you have to create the application in auth0.
3. After Login click on the applications.

4. After that click on create application and give the name of application and choose regular web app.

5. We will configure application URLs like callback and logout URL.

6. Next, We will collect the values of client id , client secret and domain because it will needed in our spring boot app setup.

7. Now we will create machine to machine app with the help of this we are able to get access token so that we are able to create users and access users of auth0.
8. Choose the type machine to machine in create application.

9. After that select the Api and give the permission to create and read user otherwise we aren’t able to create and read user from our spring boot app.

10. Keep these credentials with you as these needs in our spring boot app.

Spring boot setup:

1. Add credentials of app in the application.properties file

2. Add the Maven dependency to our pom.xml:

3. Next, we’ll create the AuthConfig class to read Auth0 properties from the application.properties file:

4. Next, we’ll create AuthController class for the login and callback api and also we have to add get management Api method to generate the access token.

5. Next we’ll add the Home Controller to home Api and welcome Api.

6. Next We’ll add the Logout Controller.

7. Next we’ll add the User Controller to create user and get user from auth0.

8. Next we’ll create user dto for the create user.

9. Now our app is ready to run.

Output:

• After running http://localhost:8080/login API

• After login it will redirected to home API
• Use logout API to logout .
• To get users of auth0 use get-users

• To create user use create-user

Conclusion:

In conclusion, Auth0 is a popular identity and access management (IAM) platform that provides a comprehensive set of features and benefits for businesses and organizations. With advanced security features, flexible authentication and authorization methods, scalability, developer-friendly APIs and SDKs, a seamless user experience, and real-time analytics and insights, Auth0 can help businesses implement secure and efficient IAM processes for their applications, websites, and APIs.

Auth0 is trusted by many well-known companies and organizations, and its platform has a proven track record of delivering reliable and scalable IAM solutions. As a result, Auth0 is a strong choice for businesses and organizations looking for a reliable and flexible IAM platform to manage their authentication and authorization needs.

Reference:  git link