UWP app: How can I deploy updatable Json file?

Question

How can I package a json file with my Win10 app so that it appears as an independent file in the LocalState (or sub) folder? I need for my app to be able to update this file occasionally.

If this is impossible can the app place files in some app data folder during the install?

Answer 1

You can mark that file as "Content" and "Copy Always" and on app start-up, you can copy that to LocalFolder programmatically and then update it whenever you want.

For example: Let's say you have a "Config" folder under root project and test.json is the file you want to replace then

string testPath = Path.Combine(ApplicationData.Current.LocalFolder.Path, "test.json");

if (!File.Exists(testPath))
    {
            string tempPath = "ms-appx:///Config/test.json";
            Uri location = new Uri(tempPath, UriKind.Absolute);
            StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(location);
            await file.CopyAsync(ApplicationData.Current.LocalFolder);
    }