Mock interceptor reads local json file and returns the file as a response.

MockRequestInterceptor.kt

class MockRequestInterceptor : Interceptor {

    override fun intercept(chain: Interceptor.Chain): Response {
        return with(chain.request()) {
            when (val mockRequestType = findMockTag()) {
                is MockRequestType -> createLocalResponse(
                    request = this,
                    filePath = mockRequestType.filePath
                )
                else -> chain.proceed(this)
            }
        }
    }
}