Pre-cache files from Player Data Storage on login

You can configure the plugin to automatically download and pre-cache files from Player Data Storage as part of the login process. This makes it much easier to use Player Data Storage for things like player preferences, since you don't need to manually call 'Read User File', and there's no period of time after login where the file data isn't yet downloaded.

Configure the files to pre-cache

In your DefaultEngine.ini, add the following lines under the [EpicOnlineServices] section:

!PrecachePlayerDataStorageFiles=ClearArray
+PrecachePlayerDataStorageFiles=Filename1
+PrecachePlayerDataStorageFiles=Filename2

You add a +PrecachePlayerDataStorageFiles= line for each file you want to have pre-cached. Files are downloaded in parallel during login, so you can add multiple files here with minimal impact on login time.

Using pre-cached files

After the user has signed in, you can call 'Get File Contents' immediately to access the contents of pre-cached files. For example, to get the file contents of Filename1 and read it as a Save Game object, you could do the following after login:

Blueprint example rendered using the blueprintue.com renderer under an explicit license grant.

note

The example above uses 'Begin Play', assuming that this actor only exists after login or that you're using startup screens to ensure the player is already signed in when your startup map starts.