Snippet

Dynamic Security Filter Chains for Multi-Tenancy

Expert-level Spring Security involves utilizing multiple SecurityFilterChain beans with specific RequestMatchers. This allows different security policies to be applied dynamically based on headers or attributes, which is essential for multi-tenant architectures.

snippet.java

java

@Configuration
@EnableWebSecurity
public class MultiTenantSecurityConfig {
    @Bean
    @Order(1)
    public SecurityFilterChain tenantFilterChain(HttpSecurity http) throws Exception {
      return http
        .securityMatcher(request -> request.getHeader("X-Tenant-ID") != null)
        .authorizeHttpRequests(auth -> auth
          .requestMatchers("/api/admin/**").hasRole("TENANT_ADMIN")
          .anyRequest().authenticated()
        )
        .addFilterBefore(new TenantIdentificationFilter(), UsernamePasswordAuthenticationFilter.class)
        .build();
    }
}

spring

Breakdown

.securityMatcher(request -> ...)

Defines a lambda-based predicate to determine if this specific filter chain should handle the incoming request.

@Order(1)

Ensures this chain is evaluated before the default security chain, allowing for specialized intercept logic.

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Dynamic Security Filter Chains for Multi-Tenancy

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