Switched to reactive Springdoc dependency and adjusted OpenApiConfig #deploy-kodeverk-service

The used Springdoc OpenAPI starter dependency was switched from 'springdoc-openapi-starter-webmvc-ui' to 'springdoc-openapi-starter-webflux-ui' making the application more reactive. Alongside this main change, the 'OpenApiConfig.java' was adjusted to implement 'WebFilter', changing the handling of authentication headers and introducing a new method for routing '/swagger' requests to '/swagger-ui.html'.

Author: krharum

apps/kodeverk-service/build.gradle

@@ -53,7 +53,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-cache'
 
     implementation 'io.micrometer:micrometer-registry-prometheus'
-    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.3.0'
+    implementation 'org.springdoc:springdoc-openapi-starter-webflux-ui:2.3.0'
     implementation 'io.swagger.core.v3:swagger-annotations-jakarta:2.2.20'
 
     implementation 'net.logstash.logback:logstash-logback-encoder:7.4'

apps/kodeverk-service/src/main/java/no/nav/testnav/kodeverkservice/config/OpenApiConfig.java

@@ -10,11 +10,16 @@
 import no.nav.testnav.libs.reactivecore.config.ApplicationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpHeaders;
+import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.server.WebFilter;
+import org.springframework.web.server.WebFilterChain;
+import reactor.core.publisher.Mono;
 
 import java.util.Arrays;
 
 @Configuration
-public class OpenApiConfig {
+public class OpenApiConfig implements WebFilter {
 
     @Bean
     public OpenAPI openApi(ApplicationProperties applicationProperties) {
@@ -24,7 +29,7 @@ public OpenAPI openApi(ApplicationProperties applicationProperties) {
                         .scheme("bearer")
                         .bearerFormat("JWT")
                         .in(SecurityScheme.In.HEADER)
-                        .name("Authorization")
+                        .name(HttpHeaders.AUTHORIZATION)
                 ))
                 .addSecurityItem(
                         new SecurityRequirement().addList("bearer-jwt", Arrays.asList("read", "write")))
@@ -44,4 +49,17 @@ public OpenAPI openApi(ApplicationProperties applicationProperties) {
                         )
                 );
     }
+
+    @Override
+    public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
+        if (exchange.getRequest().getURI().getPath().equals("/swagger")) {
+            return chain
+                    .filter(exchange.mutate()
+                            .request(exchange.getRequest()
+                                    .mutate().path("/swagger-ui.html").build())
+                            .build());
+        }
+
+        return chain.filter(exchange);
+    }
 }