kotlin-jackson-rest-template.kt

open class DefaultRestTemplate(baseUrl: String) :
        RestTemplate(HttpComponentsClientHttpRequestFactory(
                HttpClientBuilder.create().useSystemProperties().build())) {
    init {
        uriTemplateHandler = DefaultUriBuilderFactory(baseUrl)
        messageConverters = jacksonConverter(messageConverters)
    }

    private fun jacksonConverter(converters: MutableList<HttpMessageConverter<*>>): List<HttpMessageConverter<*>> {
        val jsonConverter = MappingJackson2HttpMessageConverter()
        jsonConverter.objectMapper = jacksonObjectMapper().apply {
            registerModule(KotlinModule())
        }
        converters.add(jsonConverter)
        return converters
    }
}