What is the correct way to fetch user details from Onelogin id_token in Rest Controller

Question

I am implementing Onelogin authentication for my React Spring boot application where User authentication is happening at frontend adn two tokens access_token and id_token are received.

As user details like username,email are only available in id_token not in access_token, it's being passed to Spring boot backend for verification and expiry like this:

@Configuration
public class JWTWebSecurityConfig extends WebSecurityConfigurerAdapter{

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            logger.info("In JwtSecurityConfig");
            http.csrf()
                    .disable()
                    .authorizeRequests()
                    .antMatchers("/v2/api-docs",
                            "/configuration/ui",
                            "/swagger-resources/**",
                            "/configuration/security",
                            "/swagger-ui.html",
                            "/swagger-ui/**",
                            "/webjars/**").permitAll()
                    .anyRequest().authenticated()
                    .and()
                    .oauth2ResourceServer().jwt();
        }

} 

Then In filter I am fetching the username and email from the id_token that is being passed in header like this:

@Component
public class JwtTokenAuthorizationOncePerRequestFilter extends OncePerRequestFilter {

    @Value("${jwt.http.request.header}")
    private String tokenHeader;

    private static final Pattern BEARER_PATTERN =
            Pattern.compile("^(?i:bearer) ([\\w\\x2b\\x2d\\x2e\\x2f\\x7e]+\\x3d*)$");


    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {

        final String requestToken = request.getHeader(this.tokenHeader);
        String email=null,name=null;

        if(StringUtils.hasText(requestToken)) {
            requestToken.replace("Bearer ","");
            String[] chunks = requestToken.split("\\.");
            Base64.Decoder decoder = Base64.getUrlDecoder();
            String payload = new String(decoder.decode(chunks[1]));
            ObjectMapper mapper = new ObjectMapper();
            ObjectNode object = mapper.readValue(payload, ObjectNode.class);
            email = object.get("email").asText();
            name = object.get("name").asText();

            if (email != null) {
                request.setAttribute("user",email);
                request.setAttribute("name",name);
            }
        }

        chain.doFilter(request, response);
    }
}

I am not sure if this is the correct approach for verification/validation of token and then passing the user details to controller.

I have tried using Principal Object injected into controller but it's not having the required user details in it.

@RequestMapping("/user")
public Principal user(Principal principal) {
    System.out.println(principal);
    return principal;
}

Please suggest if I am following the correct approach for OpenId Connect implementation with onelogin or there is better way to do it.

Regards,