HopFrame/docs/Writerside/topics/Callbacks.md

Callbacks

Callbacks are a way of executing actions on curtain events in the web ui.

Registering a callback handler

You can register a callback handler using the method provided in the :

table.AddCallbackHandler(CallbackType.DeleteEntry, (user, services) => {
    var logger = services.GetRequiredService<ILogger<Program>>();
    logger.LogInformation("User {user} deleted!", user.Username);
});

The callback handler takes the entity that's modified and a IServiceProvider as arguments and can either be synchronous or asynchronous.

Callback types

public enum CallbackType {
    CreateEntry = 0,
    UpdateEntry = 1,
    DeleteEntry = 2
}

• CallbackType.CreateEntry: The handler gets executed, when an entity is created.
• CallbackType.UpdateEntry: The handler gets executed, when an entity is updated.
• CallbackType.DeleteEntry: The handler gets executed, when an entity is deleted.