diff --git a/bin/configs/kotlin-spring-boot-delegate.yaml b/bin/configs/kotlin-spring-boot-delegate.yaml
index 3e70591b81b..38fdee37dc7 100644
--- a/bin/configs/kotlin-spring-boot-delegate.yaml
+++ b/bin/configs/kotlin-spring-boot-delegate.yaml
@@ -8,5 +8,6 @@ additionalProperties:
   annotationLibrary: swagger2
   useSwaggerUI: "true"
   delegatePattern: "true"
+  appendRequestToHandler: "true"
   beanValidations: "true"
   requestMappingMode: none
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java
index 3111c2a3bc4..5fe9488ad28 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinSpringServerCodegen.java
@@ -875,7 +875,7 @@ public class KotlinSpringServerCodegen extends AbstractKotlinCodegen
                 final List<CodegenParameter> allParams = operation.allParams;
                 if (allParams != null) {
                     if (this.isAppendRequestToHandler()) {
-                        allParams.add(new RequestCodegenParameter(true));
+                        allParams.add(new RequestCodegenParameter());
                     }
                     allParams.forEach(param ->
                             // This is necessary in case 'modelMutable' is enabled,
@@ -972,7 +972,16 @@ public class KotlinSpringServerCodegen extends AbstractKotlinCodegen
     @Data
     @EqualsAndHashCode(callSuper = true)
     static class RequestCodegenParameter extends CodegenParameter {
-        boolean isRequestObject;
+
+        boolean isRequestObject = true;
+
+        public RequestCodegenParameter() {
+            this.isOptional = false;
+            this.required = true;
+            this.paramName = "serverHttpRequest";
+            this.dataType = "ServerHttpRequest";
+        }
+
     }
 
     public RequestMappingMode getRequestMappingMode() {
diff --git a/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache b/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
index b1203ff381b..9dba52c9bf3 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-spring/apiDelegate.mustache
@@ -7,6 +7,9 @@ import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
 import org.springframework.web.context.request.NativeWebRequest
 import org.springframework.core.io.Resource
+{{#appendRequestToHandler}}
+import org.springframework.http.server.reactive.ServerHttpRequest
+{{/appendRequestToHandler}}
 {{#reactive}}
 import kotlinx.coroutines.flow.Flow
 {{/reactive}}
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApi.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApi.kt
index f93350173eb..5479b06dcb3 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApi.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApi.kt
@@ -15,6 +15,7 @@ import io.swagger.v3.oas.annotations.security.*
 import org.springframework.http.HttpStatus
 import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import org.springframework.web.bind.annotation.*
 import org.springframework.validation.annotation.Validated
@@ -57,8 +58,8 @@ interface PetApi {
             produces = ["application/xml", "application/json"],
             consumes = ["application/json", "application/xml"]
     )
-    fun addPet(@Parameter(description = "Pet object that needs to be added to the store", required = true) @Valid @RequestBody pet: Pet): ResponseEntity<Pet> {
-        return getDelegate().addPet(pet)
+    fun addPet(@Parameter(description = "Pet object that needs to be added to the store", required = true) @Valid @RequestBody pet: Pet,serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
+        return getDelegate().addPet(pet, serverHttpRequest)
     }
 
     @Operation(
@@ -75,8 +76,8 @@ interface PetApi {
             method = [RequestMethod.DELETE],
             value = ["/pet/{petId}"]
     )
-    fun deletePet(@Parameter(description = "Pet id to delete", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "", `in` = ParameterIn.HEADER) @RequestHeader(value = "api_key", required = false) apiKey: kotlin.String?): ResponseEntity<Unit> {
-        return getDelegate().deletePet(petId, apiKey)
+    fun deletePet(@Parameter(description = "Pet id to delete", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "", `in` = ParameterIn.HEADER) @RequestHeader(value = "api_key", required = false) apiKey: kotlin.String?,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().deletePet(petId, apiKey, serverHttpRequest)
     }
 
     @Operation(
@@ -95,8 +96,8 @@ interface PetApi {
             value = ["/pet/findByStatus"],
             produces = ["application/xml", "application/json"]
     )
-    fun findPetsByStatus(@NotNull @Parameter(description = "Status values that need to be considered for filter", required = true, schema = Schema(allowableValues = ["available", "pending", "sold"])) @Valid @RequestParam(value = "status", required = true) status: kotlin.collections.List<kotlin.String>): ResponseEntity<List<Pet>> {
-        return getDelegate().findPetsByStatus(status)
+    fun findPetsByStatus(@NotNull @Parameter(description = "Status values that need to be considered for filter", required = true, schema = Schema(allowableValues = ["available", "pending", "sold"])) @Valid @RequestParam(value = "status", required = true) status: kotlin.collections.List<kotlin.String>,serverHttpRequest: ServerHttpRequest): ResponseEntity<List<Pet>> {
+        return getDelegate().findPetsByStatus(status, serverHttpRequest)
     }
 
     @Operation(
@@ -115,8 +116,8 @@ interface PetApi {
             value = ["/pet/findByTags"],
             produces = ["application/xml", "application/json"]
     )
-    fun findPetsByTags(@NotNull @Parameter(description = "Tags to filter by", required = true) @Valid @RequestParam(value = "tags", required = true) tags: kotlin.collections.List<kotlin.String>): ResponseEntity<List<Pet>> {
-        return getDelegate().findPetsByTags(tags)
+    fun findPetsByTags(@NotNull @Parameter(description = "Tags to filter by", required = true) @Valid @RequestParam(value = "tags", required = true) tags: kotlin.collections.List<kotlin.String>,serverHttpRequest: ServerHttpRequest): ResponseEntity<List<Pet>> {
+        return getDelegate().findPetsByTags(tags, serverHttpRequest)
     }
 
     @Operation(
@@ -136,8 +137,8 @@ interface PetApi {
             value = ["/pet/{petId}"],
             produces = ["application/xml", "application/json"]
     )
-    fun getPetById(@Parameter(description = "ID of pet to return", required = true) @PathVariable("petId") petId: kotlin.Long): ResponseEntity<Pet> {
-        return getDelegate().getPetById(petId)
+    fun getPetById(@Parameter(description = "ID of pet to return", required = true) @PathVariable("petId") petId: kotlin.Long,serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
+        return getDelegate().getPetById(petId, serverHttpRequest)
     }
 
     @Operation(
@@ -159,8 +160,8 @@ interface PetApi {
             produces = ["application/xml", "application/json"],
             consumes = ["application/json", "application/xml"]
     )
-    fun updatePet(@Parameter(description = "Pet object that needs to be added to the store", required = true) @Valid @RequestBody pet: Pet): ResponseEntity<Pet> {
-        return getDelegate().updatePet(pet)
+    fun updatePet(@Parameter(description = "Pet object that needs to be added to the store", required = true) @Valid @RequestBody pet: Pet,serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
+        return getDelegate().updatePet(pet, serverHttpRequest)
     }
 
     @Operation(
@@ -178,8 +179,8 @@ interface PetApi {
             value = ["/pet/{petId}"],
             consumes = ["application/x-www-form-urlencoded"]
     )
-    fun updatePetWithForm(@Parameter(description = "ID of pet that needs to be updated", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "Updated name of the pet") @RequestParam(value = "name", required = false) name: kotlin.String? ,@Parameter(description = "Updated status of the pet") @RequestParam(value = "status", required = false) status: kotlin.String? ): ResponseEntity<Unit> {
-        return getDelegate().updatePetWithForm(petId, name, status)
+    fun updatePetWithForm(@Parameter(description = "ID of pet that needs to be updated", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "Updated name of the pet") @RequestParam(value = "name", required = false) name: kotlin.String? ,@Parameter(description = "Updated status of the pet") @RequestParam(value = "status", required = false) status: kotlin.String? ,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().updatePetWithForm(petId, name, status, serverHttpRequest)
     }
 
     @Operation(
@@ -198,7 +199,7 @@ interface PetApi {
             produces = ["application/json"],
             consumes = ["multipart/form-data"]
     )
-    fun uploadFile(@Parameter(description = "ID of pet to update", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "Additional data to pass to server") @RequestParam(value = "additionalMetadata", required = false) additionalMetadata: kotlin.String? ,@Parameter(description = "file to upload") @Valid @RequestPart("file", required = false) file: org.springframework.core.io.Resource?): ResponseEntity<ModelApiResponse> {
-        return getDelegate().uploadFile(petId, additionalMetadata, file)
+    fun uploadFile(@Parameter(description = "ID of pet to update", required = true) @PathVariable("petId") petId: kotlin.Long,@Parameter(description = "Additional data to pass to server") @RequestParam(value = "additionalMetadata", required = false) additionalMetadata: kotlin.String? ,@Parameter(description = "file to upload") @Valid @RequestPart("file", required = false) file: org.springframework.core.io.Resource?,serverHttpRequest: ServerHttpRequest): ResponseEntity<ModelApiResponse> {
+        return getDelegate().uploadFile(petId, additionalMetadata, file, serverHttpRequest)
     }
 }
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
index 25381eb447f..b147b13bcdc 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
@@ -7,6 +7,7 @@ import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
 import org.springframework.web.context.request.NativeWebRequest
 import org.springframework.core.io.Resource
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import java.util.Optional
 
@@ -22,7 +23,8 @@ interface PetApiDelegate {
     /**
      * @see PetApi#addPet
      */
-    fun addPet(pet: Pet): ResponseEntity<Pet> {
+    fun addPet(pet: Pet,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -44,7 +46,8 @@ interface PetApiDelegate {
      * @see PetApi#deletePet
      */
     fun deletePet(petId: kotlin.Long,
-        apiKey: kotlin.String?): ResponseEntity<Unit> {
+        apiKey: kotlin.String?,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -53,7 +56,8 @@ interface PetApiDelegate {
     /**
      * @see PetApi#findPetsByStatus
      */
-    fun findPetsByStatus(status: kotlin.collections.List<kotlin.String>): ResponseEntity<List<Pet>> {
+    fun findPetsByStatus(status: kotlin.collections.List<kotlin.String>,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<List<Pet>> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -74,7 +78,8 @@ interface PetApiDelegate {
     /**
      * @see PetApi#findPetsByTags
      */
-    fun findPetsByTags(tags: kotlin.collections.List<kotlin.String>): ResponseEntity<List<Pet>> {
+    fun findPetsByTags(tags: kotlin.collections.List<kotlin.String>,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<List<Pet>> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -95,7 +100,8 @@ interface PetApiDelegate {
     /**
      * @see PetApi#getPetById
      */
-    fun getPetById(petId: kotlin.Long): ResponseEntity<Pet> {
+    fun getPetById(petId: kotlin.Long,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -116,7 +122,8 @@ interface PetApiDelegate {
     /**
      * @see PetApi#updatePet
      */
-    fun updatePet(pet: Pet): ResponseEntity<Pet> {
+    fun updatePet(pet: Pet,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Pet> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -139,7 +146,8 @@ interface PetApiDelegate {
      */
     fun updatePetWithForm(petId: kotlin.Long,
         name: kotlin.String?,
-        status: kotlin.String?): ResponseEntity<Unit> {
+        status: kotlin.String?,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -150,7 +158,8 @@ interface PetApiDelegate {
      */
     fun uploadFile(petId: kotlin.Long,
         additionalMetadata: kotlin.String?,
-        file: Resource?): ResponseEntity<ModelApiResponse> {
+        file: Resource?,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<ModelApiResponse> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApi.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApi.kt
index 307de99db93..21ad6956d87 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApi.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApi.kt
@@ -14,6 +14,7 @@ import io.swagger.v3.oas.annotations.security.*
 import org.springframework.http.HttpStatus
 import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import org.springframework.web.bind.annotation.*
 import org.springframework.validation.annotation.Validated
@@ -53,8 +54,8 @@ interface StoreApi {
             method = [RequestMethod.DELETE],
             value = ["/store/order/{orderId}"]
     )
-    fun deleteOrder(@Parameter(description = "ID of the order that needs to be deleted", required = true) @PathVariable("orderId") orderId: kotlin.String): ResponseEntity<Unit> {
-        return getDelegate().deleteOrder(orderId)
+    fun deleteOrder(@Parameter(description = "ID of the order that needs to be deleted", required = true) @PathVariable("orderId") orderId: kotlin.String,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().deleteOrder(orderId, serverHttpRequest)
     }
 
     @Operation(
@@ -72,8 +73,8 @@ interface StoreApi {
             value = ["/store/inventory"],
             produces = ["application/json"]
     )
-    fun getInventory(): ResponseEntity<Map<String, kotlin.Int>> {
-        return getDelegate().getInventory()
+    fun getInventory(serverHttpRequest: ServerHttpRequest): ResponseEntity<Map<String, kotlin.Int>> {
+        return getDelegate().getInventory(serverHttpRequest)
     }
 
     @Operation(
@@ -92,8 +93,8 @@ interface StoreApi {
             value = ["/store/order/{orderId}"],
             produces = ["application/xml", "application/json"]
     )
-    fun getOrderById(@Min(1L) @Max(5L) @Parameter(description = "ID of pet that needs to be fetched", required = true) @PathVariable("orderId") orderId: kotlin.Long): ResponseEntity<Order> {
-        return getDelegate().getOrderById(orderId)
+    fun getOrderById(@Min(1L) @Max(5L) @Parameter(description = "ID of pet that needs to be fetched", required = true) @PathVariable("orderId") orderId: kotlin.Long,serverHttpRequest: ServerHttpRequest): ResponseEntity<Order> {
+        return getDelegate().getOrderById(orderId, serverHttpRequest)
     }
 
     @Operation(
@@ -112,7 +113,7 @@ interface StoreApi {
             produces = ["application/xml", "application/json"],
             consumes = ["application/json"]
     )
-    fun placeOrder(@Parameter(description = "order placed for purchasing the pet", required = true) @Valid @RequestBody order: Order): ResponseEntity<Order> {
-        return getDelegate().placeOrder(order)
+    fun placeOrder(@Parameter(description = "order placed for purchasing the pet", required = true) @Valid @RequestBody order: Order,serverHttpRequest: ServerHttpRequest): ResponseEntity<Order> {
+        return getDelegate().placeOrder(order, serverHttpRequest)
     }
 }
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt
index 26ae5451b6b..9d3283b9eeb 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt
@@ -6,6 +6,7 @@ import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
 import org.springframework.web.context.request.NativeWebRequest
 import org.springframework.core.io.Resource
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import java.util.Optional
 
@@ -21,7 +22,8 @@ interface StoreApiDelegate {
     /**
      * @see StoreApi#deleteOrder
      */
-    fun deleteOrder(orderId: kotlin.String): ResponseEntity<Unit> {
+    fun deleteOrder(orderId: kotlin.String,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -30,7 +32,7 @@ interface StoreApiDelegate {
     /**
      * @see StoreApi#getInventory
      */
-    fun getInventory(): ResponseEntity<Map<String, kotlin.Int>> {
+    fun getInventory(serverHttpRequest: ServerHttpRequest): ResponseEntity<Map<String, kotlin.Int>> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -39,7 +41,8 @@ interface StoreApiDelegate {
     /**
      * @see StoreApi#getOrderById
      */
-    fun getOrderById(orderId: kotlin.Long): ResponseEntity<Order> {
+    fun getOrderById(orderId: kotlin.Long,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Order> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -60,7 +63,8 @@ interface StoreApiDelegate {
     /**
      * @see StoreApi#placeOrder
      */
-    fun placeOrder(order: Order): ResponseEntity<Order> {
+    fun placeOrder(order: Order,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Order> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApi.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApi.kt
index bfd9e9cac5b..15715a17ecf 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApi.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApi.kt
@@ -14,6 +14,7 @@ import io.swagger.v3.oas.annotations.security.*
 import org.springframework.http.HttpStatus
 import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import org.springframework.web.bind.annotation.*
 import org.springframework.validation.annotation.Validated
@@ -54,8 +55,8 @@ interface UserApi {
             value = ["/user"],
             consumes = ["application/json"]
     )
-    fun createUser(@Parameter(description = "Created user object", required = true) @Valid @RequestBody user: User): ResponseEntity<Unit> {
-        return getDelegate().createUser(user)
+    fun createUser(@Parameter(description = "Created user object", required = true) @Valid @RequestBody user: User,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().createUser(user, serverHttpRequest)
     }
 
     @Operation(
@@ -73,8 +74,8 @@ interface UserApi {
             value = ["/user/createWithArray"],
             consumes = ["application/json"]
     )
-    fun createUsersWithArrayInput(@Parameter(description = "List of user object", required = true) @Valid @RequestBody user: kotlin.collections.List<User>): ResponseEntity<Unit> {
-        return getDelegate().createUsersWithArrayInput(user)
+    fun createUsersWithArrayInput(@Parameter(description = "List of user object", required = true) @Valid @RequestBody user: kotlin.collections.List<User>,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().createUsersWithArrayInput(user, serverHttpRequest)
     }
 
     @Operation(
@@ -92,8 +93,8 @@ interface UserApi {
             value = ["/user/createWithList"],
             consumes = ["application/json"]
     )
-    fun createUsersWithListInput(@Parameter(description = "List of user object", required = true) @Valid @RequestBody user: kotlin.collections.List<User>): ResponseEntity<Unit> {
-        return getDelegate().createUsersWithListInput(user)
+    fun createUsersWithListInput(@Parameter(description = "List of user object", required = true) @Valid @RequestBody user: kotlin.collections.List<User>,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().createUsersWithListInput(user, serverHttpRequest)
     }
 
     @Operation(
@@ -111,8 +112,8 @@ interface UserApi {
             method = [RequestMethod.DELETE],
             value = ["/user/{username}"]
     )
-    fun deleteUser(@Parameter(description = "The name that needs to be deleted", required = true) @PathVariable("username") username: kotlin.String): ResponseEntity<Unit> {
-        return getDelegate().deleteUser(username)
+    fun deleteUser(@Parameter(description = "The name that needs to be deleted", required = true) @PathVariable("username") username: kotlin.String,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().deleteUser(username, serverHttpRequest)
     }
 
     @Operation(
@@ -131,8 +132,8 @@ interface UserApi {
             value = ["/user/{username}"],
             produces = ["application/xml", "application/json"]
     )
-    fun getUserByName(@Parameter(description = "The name that needs to be fetched. Use user1 for testing.", required = true) @PathVariable("username") username: kotlin.String): ResponseEntity<User> {
-        return getDelegate().getUserByName(username)
+    fun getUserByName(@Parameter(description = "The name that needs to be fetched. Use user1 for testing.", required = true) @PathVariable("username") username: kotlin.String,serverHttpRequest: ServerHttpRequest): ResponseEntity<User> {
+        return getDelegate().getUserByName(username, serverHttpRequest)
     }
 
     @Operation(
@@ -150,8 +151,8 @@ interface UserApi {
             value = ["/user/login"],
             produces = ["application/xml", "application/json"]
     )
-    fun loginUser(@NotNull @Pattern(regexp="^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$") @Parameter(description = "The user name for login", required = true) @Valid @RequestParam(value = "username", required = true) username: kotlin.String,@NotNull @Parameter(description = "The password for login in clear text", required = true) @Valid @RequestParam(value = "password", required = true) password: kotlin.String): ResponseEntity<kotlin.String> {
-        return getDelegate().loginUser(username, password)
+    fun loginUser(@NotNull @Pattern(regexp="^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$") @Parameter(description = "The user name for login", required = true) @Valid @RequestParam(value = "username", required = true) username: kotlin.String,@NotNull @Parameter(description = "The password for login in clear text", required = true) @Valid @RequestParam(value = "password", required = true) password: kotlin.String,serverHttpRequest: ServerHttpRequest): ResponseEntity<kotlin.String> {
+        return getDelegate().loginUser(username, password, serverHttpRequest)
     }
 
     @Operation(
@@ -168,8 +169,8 @@ interface UserApi {
             method = [RequestMethod.GET],
             value = ["/user/logout"]
     )
-    fun logoutUser(): ResponseEntity<Unit> {
-        return getDelegate().logoutUser()
+    fun logoutUser(serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().logoutUser(serverHttpRequest)
     }
 
     @Operation(
@@ -188,7 +189,7 @@ interface UserApi {
             value = ["/user/{username}"],
             consumes = ["application/json"]
     )
-    fun updateUser(@Parameter(description = "name that need to be deleted", required = true) @PathVariable("username") username: kotlin.String,@Parameter(description = "Updated user object", required = true) @Valid @RequestBody user: User): ResponseEntity<Unit> {
-        return getDelegate().updateUser(username, user)
+    fun updateUser(@Parameter(description = "name that need to be deleted", required = true) @PathVariable("username") username: kotlin.String,@Parameter(description = "Updated user object", required = true) @Valid @RequestBody user: User,serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
+        return getDelegate().updateUser(username, user, serverHttpRequest)
     }
 }
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiDelegate.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiDelegate.kt
index 94f261b5ed0..9d192c57371 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiDelegate.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiDelegate.kt
@@ -6,6 +6,7 @@ import org.springframework.http.MediaType
 import org.springframework.http.ResponseEntity
 import org.springframework.web.context.request.NativeWebRequest
 import org.springframework.core.io.Resource
+import org.springframework.http.server.reactive.ServerHttpRequest
 
 import java.util.Optional
 
@@ -21,7 +22,8 @@ interface UserApiDelegate {
     /**
      * @see UserApi#createUser
      */
-    fun createUser(user: User): ResponseEntity<Unit> {
+    fun createUser(user: User,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -30,7 +32,8 @@ interface UserApiDelegate {
     /**
      * @see UserApi#createUsersWithArrayInput
      */
-    fun createUsersWithArrayInput(user: kotlin.collections.List<User>): ResponseEntity<Unit> {
+    fun createUsersWithArrayInput(user: kotlin.collections.List<User>,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -39,7 +42,8 @@ interface UserApiDelegate {
     /**
      * @see UserApi#createUsersWithListInput
      */
-    fun createUsersWithListInput(user: kotlin.collections.List<User>): ResponseEntity<Unit> {
+    fun createUsersWithListInput(user: kotlin.collections.List<User>,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -48,7 +52,8 @@ interface UserApiDelegate {
     /**
      * @see UserApi#deleteUser
      */
-    fun deleteUser(username: kotlin.String): ResponseEntity<Unit> {
+    fun deleteUser(username: kotlin.String,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -57,7 +62,8 @@ interface UserApiDelegate {
     /**
      * @see UserApi#getUserByName
      */
-    fun getUserByName(username: kotlin.String): ResponseEntity<User> {
+    fun getUserByName(username: kotlin.String,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<User> {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
@@ -79,7 +85,8 @@ interface UserApiDelegate {
      * @see UserApi#loginUser
      */
     fun loginUser(username: kotlin.String,
-        password: kotlin.String): ResponseEntity<kotlin.String> {
+        password: kotlin.String,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<kotlin.String> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -88,7 +95,7 @@ interface UserApiDelegate {
     /**
      * @see UserApi#logoutUser
      */
-    fun logoutUser(): ResponseEntity<Unit> {
+    fun logoutUser(serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }
@@ -98,7 +105,8 @@ interface UserApiDelegate {
      * @see UserApi#updateUser
      */
     fun updateUser(username: kotlin.String,
-        user: User): ResponseEntity<Unit> {
+        user: User,
+        serverHttpRequest: ServerHttpRequest): ResponseEntity<Unit> {
         return ResponseEntity(HttpStatus.NOT_IMPLEMENTED)
 
     }