Home Arrow Icon Knowledge base Arrow Icon Global Arrow Icon What are the differences between using the __construct method and the boot method for DI in Livewire
    Laravel Livewire


What are the differences between using the __construct method and the boot method for DI in Livewire


the key differences between using the `__construct()` method and the `boot()` method for dependency injection (DI) in Livewire are:

1. Lifecycle Hooks:
- `__construct()` is a standard PHP constructor method that is used to initialize the object's state when it is first created.
- `boot()` is a Livewire-specific lifecycle hook that is called when the component is first booted, and then on every subsequent request to the component.

2. Persistence Between Requests:
- Dependencies injected via `__construct()` are not persisted between requests, as Livewire components are re-constructed on each request.
- Dependencies injected via `boot()` are persisted between requests, as the `boot()` method is called on each request.

3. Initialization Timing:
- `__construct()` is used to initialize the component's state when it is first created.
- `boot()` is used to initialize the component's state on each request, which can be useful for things like initializing protected properties that are not persisted between requests.

4. Dependency Resolution:
- Both `__construct()` and `boot()` can be used to resolve dependencies from the Laravel service container.
- However, the `boot()` method is the recommended way to handle dependency injection in Livewire, as it ensures the dependencies are available on each request.

In summary, the `boot()` method is the preferred way to handle dependency injection in Livewire, as it allows you to initialize component properties and dependencies on each request, ensuring they are available when the component is used. The `__construct()` method is less suitable for Livewire, as the dependencies are not persisted between requests.

Citations:
[1] https://laracasts.com/discuss/channels/eloquent/boot-vs-constructor
[2] https://laracasts.com/discuss/channels/livewire/teoric-cuestion
[3] https://livewire.laravel.com/docs/lifecycle-hooks
[4] https://github.com/livewire/livewire/issues/380
[5] https://laravel-livewire.com/docs/2.x/rendering-components