No documented way to handle Mono/Flux without Webflux. Fixes #523.

Author: bnasslahsen

springdoc-openapi-common/src/main/java/org/springdoc/core/SpringDocConfiguration.java

@@ -48,6 +48,7 @@
 import org.springdoc.core.converters.ResponseSupportConverter;
 import org.springdoc.core.converters.SchemaPropertyDeprecatingConverter;
 import org.springdoc.core.converters.SortOpenAPIConverter;
+import org.springdoc.core.converters.WebFluxSupportConverter;
 import org.springdoc.core.customizers.ActuatorOpenApiCustomizer;
 import org.springdoc.core.customizers.ActuatorOperationCustomizer;
 import org.springdoc.core.customizers.DataRestDelegatingMethodParameterCustomizer;
@@ -69,6 +70,7 @@
 import org.springdoc.core.providers.SpringDataWebPropertiesProvider;
 import org.springdoc.core.providers.SpringWebProvider;
 import org.springdoc.core.providers.WebConversionServiceProvider;
+import reactor.core.publisher.Flux;
 
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
 import org.springframework.beans.factory.config.ConfigurableBeanFactory;
@@ -650,4 +652,25 @@ DelegatingMethodParameterCustomizer delegatingMethodParameterCustomizer(Optional
 			return new DataRestDelegatingMethodParameterCustomizer(optionalSpringDataWebPropertiesProvider, optionalRepositoryRestConfiguration);
 		}
 	}
+
+	/**
+	 * The type Spring doc web flux support configuration.
+	 */
+	@ConditionalOnClass(Flux.class)
+	static class SpringDocWebFluxSupportConfiguration {
+
+		/**
+		 * Web flux support converter web flux support converter.
+		 *
+		 * @param objectMapperProvider the object mapper provider
+		 * @return the web flux support converter
+		 */
+		@Bean
+		@ConditionalOnMissingBean
+		@Lazy(false)
+		WebFluxSupportConverter webFluxSupportConverter(ObjectMapperProvider objectMapperProvider) {
+			return new WebFluxSupportConverter(objectMapperProvider);
+		}
+
+	}
 }

…/converters/WebFluxSupportConverter.java …/converters/WebFluxSupportConverter.javaspringdoc-openapi-webflux-core/src/main/java/org/springdoc/webflux/core/converters/WebFluxSupportConverter.java renamed to springdoc-openapi-common/src/main/java/org/springdoc/core/converters/WebFluxSupportConverter.java springdoc-openapi-webflux-core/src/main/java/org/springdoc/webflux/core/converters/WebFluxSupportConverter.java renamed to springdoc-openapi-common/src/main/java/org/springdoc/core/converters/WebFluxSupportConverter.java

@@ -20,7 +20,7 @@
  *
  */
 
-package org.springdoc.webflux.core.converters;
+package org.springdoc.core.converters;
 
 import java.util.Iterator;
 

springdoc-openapi-webflux-core/src/main/java/org/springdoc/webflux/core/SpringDocWebFluxConfiguration.java

@@ -42,11 +42,9 @@
 import org.springdoc.core.customizers.RouterOperationCustomizer;
 import org.springdoc.core.filters.OpenApiMethodFilter;
 import org.springdoc.core.providers.ActuatorProvider;
-import org.springdoc.core.providers.ObjectMapperProvider;
 import org.springdoc.core.providers.SpringWebProvider;
 import org.springdoc.webflux.api.OpenApiActuatorResource;
 import org.springdoc.webflux.api.OpenApiWebfluxResource;
-import org.springdoc.webflux.core.converters.WebFluxSupportConverter;
 
 import org.springframework.beans.factory.ObjectFactory;
 import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
@@ -150,19 +148,6 @@ GenericResponseService responseBuilder(OperationService operationService, List<R
 		return new GenericResponseService(operationService, returnTypeParsers, springDocConfigProperties, propertyResolverUtils);
 	}
 
-	/**
-	 * Web flux support converter web flux support converter.
-	 *
-	 * @param objectMapperProvider the object mapper provider
-	 * @return the web flux support converter
-	 */
-	@Bean
-	@ConditionalOnMissingBean
-	@Lazy(false)
-	WebFluxSupportConverter webFluxSupportConverter(ObjectMapperProvider objectMapperProvider) {
-		return new WebFluxSupportConverter(objectMapperProvider);
-	}
-
 	/**
 	 * Spring web provider spring web provider.
 	 *

springdoc-openapi-webmvc-core/src/test/java/test/org/springdoc/api/v30/app173/HelloController.java

@@ -22,6 +22,8 @@
 
 package test.org.springdoc.api.v30.app173;
 
+import reactor.core.publisher.Flux;
+
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -32,4 +34,9 @@ public class HelloController {
     public void printHello() {
         System.out.println("Hello");
     }
+
+	@GetMapping("/toto")
+	public Flux<String> test() {
+		return null;
+	}
 }

springdoc-openapi-webmvc-core/src/test/resources/results/3.0.1/app173.json

@@ -11,6 +11,29 @@
     }
   ],
   "paths": {
+    "/toto": {
+      "get": {
+        "tags": [
+          "hello-controller"
+        ],
+        "operationId": "test",
+        "responses": {
+          "200": {
+            "description": "OK",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "type": "array",
+                  "items": {
+                    "type": "string"
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    },
     "/test": {
       "get": {
         "tags": [