Ktorfit Integration

Sandwich offers seamless extensions of ApiResponse for Ktorfit by utilizing Sandwich's converter factory. Basically, Ktorfit was built top of the Ktor, so you can use Ktor extensions as well.

To utilize these Ktorfit supports, simply add the following dependency:

GroovyKTS

dependencies {
    implementation "com.github.skydoves:sandwich-ktorfit:$version"
}

dependencies {
    implementation("com.github.skydoves:sandwich-ktorfit:$version")
}

For Kotlin Multiplatform, add the dependency below to your module's build.gradle.kts file:

sourceSets {
    val commonMain by getting {
        dependencies {
            implementation("com.github.skydoves:sandwich-ktorfit:$version")
        }
    }
}

ApiResponseConverterFactory

First, build your Ktorfit instance with the ApiResponseConverterFactory call adapter factory:

val retrofit = Ktorfit.Builder()
    .baseUrl(BASE_URL)
    .addCallAdapterFactory(ApiResponseConverterFactory.create())
    .build()

Next, define your service interface with the suspend keyword and ApiResponse<*> as the response type:

interface MyApiService {

  @GET("DisneyPosters.json")
  suspend fun fetchData(): ApiResponse<List<Poster>>
}

Lastly, execute the defined service to receive the ApiResponse:

val apiService = ktorfit.create<MyApiService>()
val response: ApiResponse<List<Poster>> = apiService.fetchData()
response.onSuccess {
    // handles the success case when the API request gets a successful response.
    mutableStateFlow.value = data
  }.onError {
    // handles error cases when the API request gets an error response.
  }.onException {
    // handles exceptional cases when the API request gets an exception response.
}

ApiResponse from the HttpClient

Basically, Ktorfit is built on top of Ktor, so you can leverage all ApiResponse extensions as described in the Ktor documentation.