Enumerate files/folders from a Teams Channel

[timdelavoorde]

Category

• Feature request

Describe the feature

Currently it is impossible to load the files or folders that are created under a Teams channel. It is also impossible to create new folders or files

Describe the solution you'd like

I'd like to load the files or folders under a team channel by using channel.LoadAsync(f => f.Files) and channel.LoadAsync(f => f.Folders) respectively.

Additional context

N/A

[jansenbe]

Hey @timdelavoorde , files and folders in a Teams channel actually live in the default document library of the SharePoint site connected to the Team, by default the default folder is the "Shared Documents" folder and each channel has it's own folder in that library (the channel displayname). So using below approach you can get to the folder hosting the files for the channel:

var team = await context.Team.GetAsync(o => o.Channels);

var folder = await context.Web.GetFolderByServerRelativeUrlAsync($"{context.Uri.PathAndQuery}/Shared Documents/{team.Channels.AsRequested().First().DisplayName}", p=>p.Files);

foreach(var file in folder.Files.AsRequested())
{
  // Use the file
}

Once you've a reference to the IFolder and it's IFileCollection you can also add files, download files, create sub folders etc. See https://pnp.github.io/pnpcore/using-the-sdk/files-intro.html#adding-files-uploading and https://pnp.github.io/pnpcore/using-the-sdk/files-intro.html#downloading-files for more details on that.

I do agree that having a method on ITeamChannel that returns the correct IFolder would be handy, something we'll consider adding.

[jansenbe]

@timdelavoorde , already created a solution for this. From tomorrow's build you can use the GetFilesFolder methods: this method will use the Graph API to request the driveItemId of the connected folder and then will return you the equivalent IFolder enabling you to use all the file management capabilities of SharePoint.

var team = await context.Team.GetAsync(o => o.Channels);
var folder = await team.Channels.AsRequested().First().GetFilesFolderAsync(p => p.Files);

[jansenbe]

Docs have been added. Closing this issue now. @timdelavoorde : if you still have issues using the new method with tomorrow's nightly build then please reopen this issue or create a new one.