Hi, what is the proper way to upload an image on Android and iOS using Ktor? I couldn’t find a sourc...

# multiplatform

[Hossein Amini]

Hi, what is the proper way to upload an image on Android and iOS using Ktor? I couldn’t find a source code or sample. Also documentation hasn’t explained to how to create a File and convert it to the ByteArray on Android and iOS

[saket]

You can use okio for reading bytes and handing them over to ktor for upload

[edenman]

I use this as my request body:

[edenman]

class ByteStreamContent(
    private val readChannel: ByteReadChannel,
    numBytes: Long,
    override val contentType: ContentType,
  ) : OutgoingContent.ReadChannelContent() {

    override val contentLength = numBytes

    override fun readFrom() = readChannel
  }

[edenman]

and then to convert the file to a `ByteReadChannel`:

context.contentResolver.openInputStream(this)?.toByteReadChannel()

[edenman]

(where this is a Uri)