scala-sttp4: fix for issue 15785 api returns unit. (#18536)

Author: dwischolek-modulon

modules/openapi-generator/src/main/resources/scala-sttp4/api.mustache

@@ -19,7 +19,7 @@ class {{classname}}(baseUrl: String) {
 {{#javadocRenderer}}
 {{>javadoc}}
 {{/javadocRenderer}}
-  def {{operationId}}({{>methodParameters}}): Request[{{#defaultReturnType}}Either[Either[String, String], Unit]{{/defaultReturnType}}{{^defaultReturnType}}{{#separateErrorChannel}}Either[ResponseException[String, Exception], {{>operationReturnType}}]{{/separateErrorChannel}}{{^separateErrorChannel}}{{>operationReturnType}}{{/separateErrorChannel}}{{/defaultReturnType}}] =
+  def {{operationId}}({{>methodParameters}}): Request[{{#separateErrorChannel}}Either[ResponseException[String, Exception], {{>operationReturnType}}]{{/separateErrorChannel}}{{^separateErrorChannel}}{{>operationReturnType}}{{/separateErrorChannel}}] =
     basicRequest
       .method(Method.{{httpMethod.toUpperCase}}, uri"$baseUrl{{{path}}}{{#queryParams.0}}?{{#queryParams}}{{baseName}}=${ {{{paramName}}} }{{^-last}}&{{/-last}}{{/queryParams}}{{/queryParams.0}}{{#isApiKey}}{{#isKeyInQuery}}{{^queryParams.0}}?{{/queryParams.0}}{{#queryParams.0}}&{{/queryParams.0}}{{keyParamName}}=${apiKey.value}&{{/isKeyInQuery}}{{/isApiKey}}")
       .contentType({{#consumes.0}}"{{{mediaType}}}"{{/consumes.0}}{{^consumes}}"application/json"{{/consumes}}){{#headerParams}}
@@ -35,7 +35,7 @@ class {{classname}}(baseUrl: String) {
         {{>paramMultipartCreation}}{{^-last}}, {{/-last}}{{/formParams}}
       ).flatten){{/isMultipart}}{{/formParams.0}}{{#bodyParam}}
       .body({{paramName}}){{/bodyParam}}
-      .response({{#defaultReturnType}}asEither(asString, ignore){{/defaultReturnType}}{{^defaultReturnType}}{{#separateErrorChannel}}asJson{{/separateErrorChannel}}{{^separateErrorChannel}}asJsonAlwaysUnsafe{{/separateErrorChannel}}[{{>operationReturnType}}]{{/defaultReturnType}})
+      .response({{#separateErrorChannel}}{{^returnType}}asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))){{/returnType}}{{#returnType}}asJson[{{>operationReturnType}}]{{/returnType}}{{/separateErrorChannel}}{{^separateErrorChannel}}{{^returnType}}asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))).getRight{{/returnType}}{{#returnType}}asJson[{{>operationReturnType}}].getRight{{/returnType}}{{/separateErrorChannel}})
 
 {{/operation}}
 }

samples/client/petstore/scala-sttp4/src/main/scala/org/openapitools/client/api/PetApi.scala

@@ -54,7 +54,7 @@ class PetApi(baseUrl: String) {
       .method(Method.DELETE, uri"$baseUrl/pet/${petId}")
       .contentType("application/json")
       .header("api_key", apiKey.toString)
-      .response(asJson[Unit])
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * Multiple status values can be provided with comma separated strings
@@ -142,7 +142,7 @@ class PetApi(baseUrl: String) {
         "name" -> name,
         "status" -> status
       ))
-      .response(asJson[Unit])
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * 

samples/client/petstore/scala-sttp4/src/main/scala/org/openapitools/client/api/StoreApi.scala

@@ -35,7 +35,7 @@ class StoreApi(baseUrl: String) {
     basicRequest
       .method(Method.DELETE, uri"$baseUrl/store/order/${orderId}")
       .contentType("application/json")
-      .response(asJson[Unit])
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * Returns a map of status codes to quantities

samples/client/petstore/scala-sttp4/src/main/scala/org/openapitools/client/api/UserApi.scala

@@ -34,13 +34,13 @@ class UserApi(baseUrl: String) {
    * 
    * @param user Created user object
    */
-  def createUser(apiKey: String)(user: User): Request[Either[Either[String, String], Unit]] =
+  def createUser(apiKey: String)(user: User): Request[Either[ResponseException[String, Exception], Unit]] =
     basicRequest
       .method(Method.POST, uri"$baseUrl/user")
       .contentType("application/json")
       .header("api_key", apiKey)
       .body(user)
-      .response(asEither(asString, ignore))
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * 
@@ -53,13 +53,13 @@ class UserApi(baseUrl: String) {
    * 
    * @param user List of user object
    */
-  def createUsersWithArrayInput(apiKey: String)(user: Seq[User]): Request[Either[Either[String, String], Unit]] =
+  def createUsersWithArrayInput(apiKey: String)(user: Seq[User]): Request[Either[ResponseException[String, Exception], Unit]] =
     basicRequest
       .method(Method.POST, uri"$baseUrl/user/createWithArray")
       .contentType("application/json")
       .header("api_key", apiKey)
       .body(user)
-      .response(asEither(asString, ignore))
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * 
@@ -72,13 +72,13 @@ class UserApi(baseUrl: String) {
    * 
    * @param user List of user object
    */
-  def createUsersWithListInput(apiKey: String)(user: Seq[User]): Request[Either[Either[String, String], Unit]] =
+  def createUsersWithListInput(apiKey: String)(user: Seq[User]): Request[Either[ResponseException[String, Exception], Unit]] =
     basicRequest
       .method(Method.POST, uri"$baseUrl/user/createWithList")
       .contentType("application/json")
       .header("api_key", apiKey)
       .body(user)
-      .response(asEither(asString, ignore))
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * This can only be done by the logged in user.
@@ -97,7 +97,7 @@ class UserApi(baseUrl: String) {
       .method(Method.DELETE, uri"$baseUrl/user/${username}")
       .contentType("application/json")
       .header("api_key", apiKey)
-      .response(asJson[Unit])
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * 
@@ -144,12 +144,12 @@ class UserApi(baseUrl: String) {
    * Available security schemes:
    *   api_key (apiKey)
    */
-  def logoutUser(apiKey: String)(): Request[Either[Either[String, String], Unit]] =
+  def logoutUser(apiKey: String)(): Request[Either[ResponseException[String, Exception], Unit]] =
     basicRequest
       .method(Method.GET, uri"$baseUrl/user/logout")
       .contentType("application/json")
       .header("api_key", apiKey)
-      .response(asEither(asString, ignore))
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
   /**
    * This can only be done by the logged in user.
@@ -170,6 +170,6 @@ class UserApi(baseUrl: String) {
       .contentType("application/json")
       .header("api_key", apiKey)
       .body(user)
-      .response(asJson[Unit])
+      .response(asString.mapWithMetadata(ResponseAs.deserializeRightWithError(_ => Right(()))))
 
 }