Returns type

I have a actions likes this elixir

 
      update :update_user, :update_user do
        read_action :get_by_token
        identity false
      end
    ....

    update :update_user do
      change fn changeset, struct ->
        changeset
        |> Ash.Changeset.change_attribute(
          :confirmed_at,
          Dates.now()
        )
        |> Ash.Changeset.change_attribute(
          :status,
          :confirmed
        )
        |> Ash.Changeset.after_action(fn changeset, customer ->
              #generate token
          {:ok, %{user: user, token: token}}
        end)
      end

 
      update :update_user, :update_user do
        read_action :get_by_token
        identity false
      end
    ....

    update :update_user do
      change fn changeset, struct ->
        changeset
        |> Ash.Changeset.change_attribute(
          :confirmed_at,
          Dates.now()
        )
        |> Ash.Changeset.change_attribute(
          :status,
          :confirmed
        )
        |> Ash.Changeset.after_action(fn changeset, customer ->
              #generate token
          {:ok, %{user: user, token: token}}
        end)
      end

I want to override the default return type which defaults to the resource . and instead return a map type with fields user of type user resource and token of type string.

12 Replies

barnabasj•2y ago

you could probably put it into the metadata to expose it along the resource https://ash-hq.org/docs/dsl/ash-resource#actions-update-metadata, or use a generic action https://ash-hq.org/docs/guides/ash/latest/topics/actions#generic-actions

Ash HQ

Ash.Resource

View the documentation for Ash.Resource on Ash HQ.

Ash HQ

Guide: Actions

Read the "Actions" guide on Ash HQ

barnabasj•2y ago

Metadata is probably the best fit here IMO

edwinofdawnOP•2y ago

Oh okay, I still don't how this will look like , will the API still return a user type ? If so how can the token be accessed?

barnabasj•2y ago

It will be the user type with an extra metadata key in the action you declare the type of the metadata metadata :token, :string, allow_nil?: false in the after action you would do

Ash.Changeset.after_action(fn changeset, resource ->
   #generate token
   {:ok, Ash.Resource.put_metadata(resource, :token, token)}
end)

Ash.Changeset.after_action(fn changeset, resource ->
   #generate token
   {:ok, Ash.Resource.put_metadata(resource, :token, token)}
end)

the api will return

%User{
  metadata: %{
    token: <your-token>
  },
  other_user_attributes: ""
  ...
}

%User{
  metadata: %{
    token: <your-token>
  },
  other_user_attributes: ""
  ...
}

edwinofdawnOP•2y ago

this does not work as this is a graphql API since the return type is a User the fields I query need to exist on the user.

barnabasj•2y ago

it generates a different type for the graphql api i'm already using this with graphql

barnabasj•2y ago

hmm, might be only implemented for reads https://ash-hq.org/docs/dsl/ash-resource#graphql-queries-get

Ash HQ

Ash.Resource

View the documentation for Ash.Resource on Ash HQ.

barnabasj•2y ago

there are options for metadata fields No i just checked I definetly have mutations using this.

barnabasj•2y ago

barnabasj•2y ago

it is part of the result type not the user, my bad

edwinofdawnOP•2y ago

this worked thanks @barnabasj

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Returns type

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