Скачать или смотреть PowerApps upload file to SharePoint document library

you will learn how to upload a file directly to a SharePoint Document Library
Set(varImageFileName, First(AttachFile.Attachments).Name);

Set(varImageFileBinanry, Mid(
JSON(
ImageFile.Image,
JSONFormat.IncludeBinaryData
),
Find(
",",
JSON(
ImageFile.Image,
JSONFormat.IncludeBinaryData
)
) + 1,
Len(
JSON(
ImageFile.Image,
JSONFormat.IncludeBinaryData
)
) - Find(
",",
JSON(
ImageFile.Image,
JSONFormat.IncludeBinaryData
)
) - 1
));
Set(VarFileURL, UploadFileInSP.Run(varImageFileName,varImageFileBinanry));