Getting Started with Azure B2C Custom Login Page
Azure B2C provides a robust authentication service that allows you to add identity management to your applications. By default, Azure B2C provides a standard login page that may not align with your application’s branding or user experience requirements. That’s where the custom login page comes in.
Step 1: Understanding the Azure B2C Sign-In Flow
Before diving into the code, it’s important to understand the sign-in flow in Azure B2C. The process involves several steps:
- The user clicks on the “Sign In” button on your application’s login page.
- Azure B2C redirects the user to the Azure B2C login page.
- The user enters their credentials and submits the form.
- Azure B2C validates the user’s credentials and issues a token if the authentication is successful.
- The user is redirected back to your application with the token.
Now that we have a clear understanding of the sign-in flow, let’s move on to creating our custom login page.
Step 2: Creating the Custom Login Page
- Create an HTML file that will serve as the login page. You can use your favorite text editor or an integrated development environment (IDE) to create the file.
- Add the required HTML markup for the login page, including form elements for username and password input fields.
- Use CSS to style the login page according to your application’s branding and design guidelines.
Adding personal touches and commentary, I recommend using a modern CSS framework like Bootstrap or Tailwind CSS to make your login page responsive and visually appealing. These frameworks provide pre-built components and classes that can save you a lot of time and effort.
Step 3: Interacting with the Azure B2C API
- Attach an event listener to the form submission event.
- Prevent the default form submission behavior to handle the login process programmatically.
- Retrieve the values entered by the user in the username and password fields.
- Use the Azure B2C Authentication API to send a POST request to the Azure B2C endpoint with the user’s credentials.
- Handle the response from the Azure B2C API, which includes the authentication token.
- Perform any additional tasks, such as redirecting the user to a specific page or storing the token for future use.
Now it’s time to get started with creating your own custom login page in Azure B2C. Good luck!