title: Integrating captcha with Spring Boot on Login Page
body: <p>Was looking for example of integrating captcha (any kind recaptcha, kaptcha ..) with Spring Boot on Login Page using Spring Security, using custom implementation of org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;</p>
  
  <p>Also how do i send additional params to userDetailsService class from Login Page ?</p>
  
  <p>Thanks</p>