Resource API

The Resource API provides a reactive, signal-based way to manage asynchronous data fetching and state. It replaces many common patterns involving manual toSignal(http.get(...)) or complex RxJS streams for simple data loading.

Key Functions:

• resource(): The standard version for Promise-based or generic async fetching.
• rxResource(): The RxJS-integrated version, ideal for use with HttpClient.

Key Properties (Exposed as Signals):

• value: The current data returned by the resource.
• status: The current state (Idle, Loading, Resolved, Error, Reloading).
• isLoading: A boolean convenience signal.
• error: The error object if the fetch failed.

Key Features:

• Request Signals: Automatically re-fetches when a dependency signal (like a search query) changes.
• Reloading: A built-in reload() method to refresh data.
• Local Optimistic Updates: Methods to locally update the value before the server responds.