Securing your REST API with basic authentication

To be able to authenticate and authorize users, we will add basic authentication implementation. By default, Spring will handle /login as a web page and that is something we don't want for our REST API. Create a new class inside the security package and call it WebSecurityEntryPoint.

This class must implement the AuthenticationEntryPoint interface whose purpose is to commence an authentication scheme. The implementation will look like this:

package com.journaler.api.security 
 
import org.springframework.security.core.AuthenticationException 
import org.springframework.security.web.AuthenticationEntryPoint 
import org.springframework.stereotype.Component 
import javax.servlet.http.HttpServletRequest 
import javax.servlet.http.HttpServletResponse 
 
@Component 
class WebSecurityEntryPoint : AuthenticationEntryPoint { 
 
    override fun commence( 
            request: HttpServletRequest?, 
            response: HttpServletResponse?, 
       ...