# Upload ## `` - `button` (name of a button component), `folder-button` (name of a button component), `folder`, `camera`, `overwrite`, `allow-streams`, `monitor` - events: FileUploadStarted, FileUploadComplete - methods: setDestination, destinationUpload, uploadStart, cancelAll, cancelUnlessMonitored, closeWhenDone ## Guidance ```xml home://Documents ``` - Needs a signed-in CloudBackend drive. Until setDestination runs, the button reports "No upload URL set." - From a step, `uploadStart(filename, accept)` filters the picker (`image/*`) or takes one file under a name; `camera="true"` asks phones for the camera. - FileUploadComplete: `{!}` is done, failed or cancelled. No reload needed: each uploaded file is added to the loaded folder listing, so a component bound to the destination shows it. - A taken name asks Keep both/Replace/Skip; `overwrite="true"` replaces (with `hide="true"` for a quiet upload). An icon-only browse button needs `title`.