gistfile1.txt

file.inputStream().buffered().use {
    httpClient.submitFormWithBinaryData<HttpResponse>(fullUrl, formData {
        appendInput("file", headersOf(HttpHeaders.ContentDisposition,
                ContentDisposition.File
                        .withParameter(ContentDisposition.Parameters.Name, file.name)
                        .withParameter(ContentDisposition.Parameters.FileName, file.file.name)
                        .toString())) {
            it.asInput()
        }
    }).also {
        logger.info { "importing file ${file.name} (${it.status})" }
    }
}