How to download a file from url

[N7ghtm4r3]

Hi, I would to save a file from an url without use dialogs, but instead, I would like to use just an API that download directly the file and store in the indicated path. I am on Compose Multiplatform with Web target also and I am using the 0.10.0-beta04 FileKit version, is there any api because I tried to use openFileSaver api, but it seems to be deprecated. I am sorry if I have not read well the related docu. It might be the FileKit.download api, also outside from web target?

[vinceglb]

Hi @N7ghtm4r3!

If you want to save a PlatformFile locally:

On Android, iOS, macOS and JVM: you can use something like

val yourFileToSave: PlatformFile = ...
val destinationFile = PlatformFile(FileKit.filesDir, "document.txt")

// Write the string
yourFileToSave.copyTo(destinationFile)

On web targets (JS and WASM):

val yourFileToSave: PlatformFile = ...
yourFileToSave.download()

If you want to download a file stored on a remote server accessible via an URL

FileKit doesn't provide a way to do this right now. I recommend using Ktor Client to download files. You will be able to receive bytes from the url and then save them locally using platformFile.write(bytes) (non web targets) or FileKit.download(bytes) (web targets).

[N7ghtm4r3]

Hi, thank you for fast reply and for all the information! Yes at the moment I need to download a file from a remote server and I totally forgot about the Ktor option, thank you to have reminded to me. The 0.10.0 version migration look cool anyway!

[N7ghtm4r3]

Hi, sorry again, but using this deprecated openFileSaver:

public actual suspend fun FileKit.openFileSaver(
    bytes: ByteArray?,
    suggestedName: String,
    extension: String?,
    directory: PlatformFile?,
    dialogSettings: FileKitDialogSettings
): PlatformFile? {

The replaceWith suggests to use the saveFile(suggestedName, extension, directory, dialogSettings) api, but I cannot find it, where can I find and use?

[vinceglb]

My bad, the replaceWith is wrong. I will fix it.

Meanwhile, you can follow the section 3 of the Migrate to v0.10 doc.

[N7ghtm4r3]

Hi, thank you! I will follow from the section 3