[kotlin][client] make base path globally configurable (#5450)

* [kotlin][client] make base path configurable

* [kotlin][client] update pet project

* [kotlin][client] set default base path

* [kotlin][client] set default base path

* [kotlin][client] set default base path

modules/openapi-generator/src/main/resources/kotlin-client/api.mustache

@@ -17,7 +17,13 @@ import {{packageName}}.infrastructure.Success
 import {{packageName}}.infrastructure.toMultiValue
 
 {{#operations}}
-{{#nonPublicApi}}internal {{/nonPublicApi}}class {{classname}}(basePath: kotlin.String = "{{{basePath}}}") : ApiClient(basePath) {
+{{#nonPublicApi}}internal {{/nonPublicApi}}class {{classname}}(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("{{packageName}}.baseUrl", "{{{basePath}}}")
+        }
+    }
 
     {{#operation}}
     /**

modules/openapi-generator/src/main/resources/kotlin-client/libraries/jvm-retrofit2/infrastructure/ApiClient.kt.mustache

@@ -11,9 +11,16 @@ import retrofit2.converter.moshi.MoshiConverterFactory
 {{/moshi}}
 
 {{#nonPublicApi}}internal {{/nonPublicApi}}class ApiClient(
-    private var baseUrl: String = "{{{basePath}}}",
+    private var baseUrl: String = defaultBasePath,
     private var okHttpClient: OkHttpClient
 ) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("{{packageName}}.baseUrl", "{{{basePath}}}")
+        }
+    }
+
     init {
         normalizeBaseUrl()
     }

samples/client/petstore/kotlin-gson/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-gson/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-gson/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-jackson/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-jackson/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-jackson/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-internal class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+internal class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-internal class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+internal class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-internal class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+internal class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt

@@ -6,9 +6,16 @@ import retrofit2.converter.scalars.ScalarsConverterFactory
 import retrofit2.converter.moshi.MoshiConverterFactory
 
 class ApiClient(
-    private var baseUrl: String = "http://petstore.swagger.io/v2",
+    private var baseUrl: String = defaultBasePath,
     private var okHttpClient: OkHttpClient
 ) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
+
     init {
         normalizeBaseUrl()
     }

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/apis/PetApi.kt

@@ -26,7 +26,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class PetApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class PetApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Add a new pet to the store

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/apis/StoreApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class StoreApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class StoreApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Delete purchase order by ID

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/apis/UserApi.kt

@@ -25,7 +25,13 @@ import org.openapitools.client.infrastructure.ResponseType
 import org.openapitools.client.infrastructure.Success
 import org.openapitools.client.infrastructure.toMultiValue
 
-class UserApi(basePath: kotlin.String = "http://petstore.swagger.io/v2") : ApiClient(basePath) {
+class UserApi(basePath: kotlin.String = defaultBasePath) : ApiClient(basePath) {
+    companion object {
+        @JvmStatic
+        val defaultBasePath: String by lazy {
+            System.getProperties().getProperty("org.openapitools.client.baseUrl", "http://petstore.swagger.io/v2")
+        }
+    }
 
     /**
     * Create user