5.10.3. Dynamic tenant configuration resolution

package io.quarkus.it.keycloak;

import jakarta.enterprise.context.ApplicationScoped;
import java.util.function.Supplier;

import io.smallrye.mutiny.Uni;
import io.quarkus.oidc.OidcRequestContext;
import io.quarkus.oidc.OidcTenantConfig;
import io.quarkus.oidc.TenantConfigResolver;
import io.vertx.ext.web.RoutingContext;

@ApplicationScoped
public class CustomTenantConfigResolver implements TenantConfigResolver {

    @Override
    public Uni<OidcTenantConfig> resolve(RoutingContext context, OidcRequestContext<OidcTenantConfig> requestContext) {
        String path = context.request().path();
        String[] parts = path.split("/");

        if (parts.length == 0) {
            //Resolve to default tenant configuration
            return null;
        }

        if ("tenant-c".equals(parts[1])) {
            // Do 'return requestContext.runBlocking(createTenantConfig());'
            // if a blocking call is required to create a tenant config,
            return Uni.createFrom().item(createTenantConfig());
        }

        //Resolve to default tenant configuration
        return null;
    }

    private Supplier<OidcTenantConfig> createTenantConfig() {
        final OidcTenantConfig config = OidcTenantConfig
                .authServerUrl("http://localhost:8180/realms/tenant-c")
                .tenantId("tenant-c")
                .clientId("multi-tenant-client")
                .credentials("my-secret")
                .build();

        // Any other setting supported by the quarkus-oidc extension

        return () -> config;
    }
}