v4.39.0 - Sticky bucketing storage adapter

• Added an option to provide a custom storage adapter for user-persisted values UserPersistentStorageInterface. So far, supports storing sticky experiments on user level

Warning

This is an experimental feature that may be subject to change.

Example usage

class UserPersistentStorageExample implements UserPersistentStorageInterface
{
  public store: Record<string, string>;
  public constructor() {
    this.store = {};
  }
  load(userID: string): string {
    return this.store[userID];
  }
  save(userID: string, data: string) {
    this.store[userID] = data;
  }
}
...
await Statsig.initialize(
  "client-sdk-key",
  { userID: "some_user_id" },
  { userPersistentStorage: new UserPersistentStorageExample() }
);

Full Changelog: v4.38.0...v4.39.0