pedroveras

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests(authorizeRequests ->
                authorizeRequests
                        .antMatchers(HttpMethod.GET, "/hello").hasAuthority("SCOPE_hello")
                        .anyRequest().authenticated()

pedroveras

@RestController
public class HelloController {

    @GetMapping("/hello")
    public ResponseEntity<String> hello() {
        return ResponseEntity.ok().body("hello");
    }
}

pedroveras

## spring security resource server configuration
spring:
  security:
    oauth2:
      resourceserver:
        jwt:
          issuer-uri: ${KEYCLOAK_ISSUER_URI:http://localhost:18080/auth/realms/hello}
          jwk-set-uri: ${KEYCLOAK_JWKS_URI:http://localhost:18080/auth/realms/hello/protocol/openid-connect/certs}

pedroveras

version: '3'
services:

  postgres:
    image: 'postgres:alpine'
    volumes:
      - postgres-volume:/var/lib/postgresql/data
    ports:
      - 5432:5432
    environment:

pedroveras

@AllArgsConstructor
public class MonthlyExpensesRule implements Rule {

    private Rule nextRule;

    @Override
    public boolean validate(Client client) {
        BigDecimal expensesAmount = client.getExpenses().stream().filter(this::validatePeriod)
                .map(Expense::getAmount).reduce(BigDecimal.ZERO, BigDecimal::add);

pedroveras

@AllArgsConstructor
public class TimeAsClientRule implements Rule {

    @Override
    public boolean validate(Client client) {
        return client.getClientSince().plusYears(CashbackParams.TIME_AS_CLIENT)
                .isBefore(LocalDateTime.now());
    }
}

pedroveras

@AllArgsConstructor
public class SegmentRule implements Rule {

    private Rule nextRule;

    @Override
    public boolean validate(Client client) {
        if (client.getSegment().equals(CashbackParams.SEGMENT)) {
            return nextRule.validate(client);
        }

pedroveras

public interface Rule {
    void validate(Client client);
}