Ktor Multipart Request

ktor_multipart.kt

suspend fun uploadFile(file: ByteArray, headerValue: String) = withContext(Dispatchers.IO) {
    try {
        // Prepare Input Stream
        val inputStream = file.inputStream().asInput()
        // Create Form Data
        val parts: List<PartData> = formData {
            // Optional Headers
            append("headerKey", headerValue)
            // File Input Stream
            appendInput("file", size = file.size.toLong()) { inputStream }
        }
        // Launch Request
        val response = multipartHttpClient.submitFormWithBinaryData<HttpResponse>("https://storage.example.org/upload", parts)
        // Close Input Stream
        inputStream.close()
    } catch (t: Throwable) {
        // Handle Error
    }
}