In this page you can find some samples of generated code using swagger-gradle-codegen for every platform:

## `kotlin` platform

The following specs:

```json
{
    "definitions": {
        "Category": {
            "description": "A Category used to group pets",
            "properties": {
                "id": {
                    "description": "Unique ID of the Category",
                    "format": "int64",
                    "type": "integer"
                },
                "name": {
                    "description": "Name of this category",
                    "type": "string"
                }
            },
            "type": "object"
        },
        "Pet": {
            "description": "Represents a specific Pet in the store",
            "properties": {
                "category": {
                    "$ref": "#/definitions/Category",
                    "description": "Optional category of the pet"
                },
                "id": {
                    "description": "Unique ID of this Pet",
                    "format": "int64",
                    "type": "integer"
                },
                "name": {
                    "description": "Name of this specific pet",
                    "type": "string"
                },
                "photoUrls": {
                    "description": "Photo URls for this Pet on the bucket",
                    "items": {
                        "type": "string"
                    },
                    "type": "array"
                },
                "tags": {
                    "description": "Pet status in the store",
                    "items": {
                        "$ref": "#/definitions/Tag"
                    },
                    "type": "array"
                }
            },
            "required": [
                "name",
                "photoUrls"
            ],
            "type": "object"
        },
        "Tag": {
            "description": "A Tag used to group entities",
            "properties": {
                "id": {
                    "description": "Unique ID of the Tag",
                    "format": "int64",
                    "type": "integer"
                },
                "name": {
                    "description": "Name of this Tag",
                    "type": "string"
                }
            },
            "type": "object"
        }
    },
    "info": {
        "description": "This is a simplified version of the sample server Petstore server.",
        "title": "Swagger Petstore",
        "version": "1.0.0"
    },
    "paths": {
        "/pet/{petId}": {
            "get": {
                "description": "Returns a single pet",
                "operationId": "getPetById",
                "parameters": [
                    {
                        "description": "ID of pet to return",
                        "format": "int64",
                        "in": "path",
                        "name": "petId",
                        "required": true,
                        "type": "integer"
                    }
                ],
                "responses": {
                    "200": {
                        "description": "successful operation",
                        "schema": {
                            "$ref": "#/definitions/Pet"
                        }
                    }
                },
                "summary": "Find pet by ID"
            }
        }
    },
    "swagger": "2.0"
}
```

Will generate the following Retrofit Interfaces and Kotlin Data Classes:

### DefaultApi.kt

`DefaultApi.kt` will contain a Retrofit interface with all the endpoints, in this case just one:

```kotlin
/**
 * NOTE: This class is auto generated by the Swagger Gradle Codegen for the following API: Swagger Petstore
 *
 * More info on this tool is available on https://github.com/Yelp/swagger-gradle-codegen
 */

package com.yelp.codegen.generatecodesamples.apis

import com.yelp.codegen.generatecodesamples.models.Pet
import io.reactivex.Single
import retrofit2.http.GET
import retrofit2.http.Headers

@JvmSuppressWildcards
interface DefaultApi {
    /**
     * Find pet by ID
     * Returns a single pet
     * The endpoint is owned by generatecodesamples service owner
     * @param petId ID of pet to return (required)
     */
    @Headers(
            "X-Operation-ID: getPetById"
    )
    @GET("/pet/{petId}")
    fun getPetById(
        @retrofit2.http.Path("petId") petId: Long
    ): Single<Pet>
}
```

### Pets.kt

`Pets.kt` will contain a Kotlin Data class that will be used as response type for the `/pet/{petID}` endpoint.

```kotlin
/**
 * NOTE: This class is auto generated by the Swagger Gradle Codegen for the following API: Swagger Petstore
 *
 * More info on this tool is available on https://github.com/Yelp/swagger-gradle-codegen
 */

package com.yelp.codegen.generatecodesamples.models

import com.squareup.moshi.Json
import com.squareup.moshi.JsonClass

/**
 * Represents a specific Pet in the store
 * @property id Unique ID of this Pet
 * @property category Optional category of the pet
 * @property name Name of this specific pet
 * @property photoUrls Photo URls for this Pet on the bucket
 * @property tags Pet status in the store
 */
@JsonClass(generateAdapter = true)
data class Pet(
    @Json(name = "name") @field:Json(name = "name") var name: String,
    @Json(name = "photoUrls") @field:Json(name = "photoUrls") var photoUrls: List<String>,
    @Json(name = "id") @field:Json(name = "id") var id: Long? = null,
    @Json(name = "category") @field:Json(name = "category") var category: Category? = null,
    @Json(name = "tags") @field:Json(name = "tags") var tags: List<Tag>? = null
)
```