Question regarding a notifier its family "modifier"

[DJWassink]

I have been looking through the docs and am fairly new to Dart / Riverpod but I can't seem to figure out how to pass an argument to a notifier created with a family.

I have created the following provider:

final entryFormStateProvider =
    AutoDisposeFamilyNotifierProvider<EntryFormStateNotifier, EntryFormState, EntryFormState>(() {
  return EntryFormStateNotifier();
});

But I can't figure out how to pass the family argument to the EntryFormStateNotifier class. I assume this changed since its not passed to its build method instead of the constructor.
So I assumed Riverpod somehow manages this for me? However I am also confused on how to pass the argument from my widget to the provider, trying the pass the argument like the other providers results in an error:

ref.watch(entryFormStateProvider(initialEntryFormState));
/// The expression doesn't evaluate to a function, so it can't be invoked.

How exactly am I supposed to pass an argument to a NotifierProvider with a family notifier?

Thanks!

[rrousselGit]

You don't. The notifier naturally receive the parameter without having to do anything.

Your Notifier base type should be AutoDisposeFamilyNotifier (or whatever class with a similar name, I always forget).

[DJWassink]

Ooh I figured it out, I need to type my provider with a AutoDisposeNotifierProviderFamily instead of a AutoDisposeFamilyNotifierProvider.
Thanks for the help!

[PackRuble]

@DJWassink thank you! I ran into the same problem and still couldn't figure out how to pass the argument! 😅

[bibek-magar]

Any updates on how to send params?

[superakabo]

@rrousselGit please rename the AutoDisposeFamilyNotifierProvider typedef to prevent confusion.

[rrousselGit]

@superakabo Please be more specific. What confusion are you talking about, and why are you using this type? You shouldn't have to type it yourself

[superakabo]

@superakabo Please be more specific. What confusion are you talking about, and why are you using this type? You shouldn't have to type it yourself

I am refactoring my StateNotifierProvider.autoDispose.family implementations to AutoDisposeNotifierProviderFamily.
While doing that, I mistakenly used AutoDisposeFamilyNotifierProvider which is a typedef instead of AutoDisposeNotifierProviderFamily. The names are quite similar and it is easier to make a mistake when you depend on the intellisense of your IDE.

[rrousselGit]

Use Notifier.autoDispose.family, that should be better

[superakabo]

OK. Thanks.