Add JSON API for Book and Publisher.

lib/decentralised_book_index/metadata.ex

@@ -5,10 +5,24 @@ defmodule DecentralisedBookIndex.Metadata do
 
   json_api do
     routes do
+      base_route "/books", Metadata.Book do
+        get :read
+        index :search
+
+        related :bids, :read, primary?: true
+        related :author_roles, :read, primary?: true
+        related :publisher, :read, primary?: true
+      end
+
       base_route "/author", Metadata.Author do
         get :read
         index :search
       end
+
+      base_route "/publishers", Metadata.Publisher do
+        get :read
+        index :search
+      end
     end
   end
 
@@ -60,7 +74,12 @@ defmodule DecentralisedBookIndex.Metadata do
     resource DecentralisedBookIndex.Metadata.Author do
       define :create_author,
         action: :create,
-        args: [:name, :description, {:optional, :avatar_url}, {:optional, :author_alias_registry_id}]
+        args: [
+          :name,
+          :description,
+          {:optional, :avatar_url},
+          {:optional, :author_alias_registry_id}
+        ]
 
       define :add_author_to_related_alias_registry,
         action: :add_author_to_related_alias_registry,

lib/decentralised_book_index/metadata/book.ex

@@ -2,11 +2,16 @@ defmodule DecentralisedBookIndex.Metadata.Book do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource]
 
   require Ash.Query
   alias DecentralisedBookIndex.Metadata
 
+  json_api do
+    type "book"
+  end
+
   postgres do
     table "books"
     repo DecentralisedBookIndex.Repo
@@ -17,7 +22,19 @@ defmodule DecentralisedBookIndex.Metadata.Book do
 
     create :create do
       primary? true
-      accept [:title, :description, :format, :language, :page_count, :published, :publisher_id, :cover_image_url, :book_editions_registry_id]
+
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id
+      ]
+
       argument :bids, {:array, :map}
       argument :author_roles, {:array, :map}
 
@@ -38,7 +55,16 @@ defmodule DecentralisedBookIndex.Metadata.Book do
     end
 
     create :add_book_to_related_editions_registry do
-      accept [:title, :description, :format, :language, :page_count, :published, :publisher_id, :cover_image_url]
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url
+      ]
 
       argument :related_book_id, :uuid do
         allow_nil? false
@@ -55,7 +81,11 @@ defmodule DecentralisedBookIndex.Metadata.Book do
         else
           {:ok, related_book} = DecentralisedBookIndex.Metadata.get_book_by_id(related_book_id)
 
-          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, related_book.book_editions_registry_id)
+          Ash.Changeset.force_change_attribute(
+            changeset,
+            :book_editions_registry_id,
+            related_book.book_editions_registry_id
+          )
         end
       end
 
@@ -83,8 +113,10 @@ defmodule DecentralisedBookIndex.Metadata.Book do
         book = query.arguments.book
 
         DecentralisedBookIndex.Metadata.Book
-        |> Ash.Query.filter(book_editions_registry_id == ^book.book_editions_registry_id
+        |> Ash.Query.filter(
-                            and id != ^book.id)
+          book_editions_registry_id == ^book.book_editions_registry_id and
+            id != ^book.id
+        )
       end
     end
 
@@ -115,7 +147,19 @@ defmodule DecentralisedBookIndex.Metadata.Book do
     update :update do
       primary? true
       require_atomic? false
-      accept [:title, :description, :format, :language, :page_count, :published, :publisher_id, :cover_image_url, :book_editions_registry_id]
+
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id
+      ]
+
       argument :bids, {:array, :map}
       argument :author_roles, {:array, :map}
 

lib/decentralised_book_index/metadata/publisher.ex

@@ -2,11 +2,16 @@ defmodule DecentralisedBookIndex.Metadata.Publisher do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource]
 
   require Ash.Query
   alias DecentralisedBookIndex.Metadata
 
+  json_api do
+    type "publisher"
+  end
+
   postgres do
     table "publishers"
     repo DecentralisedBookIndex.Repo
@@ -25,6 +30,17 @@ defmodule DecentralisedBookIndex.Metadata.Publisher do
       get? true
       filter expr(id == ^arg(:id))
     end
+
+    read :search do
+      argument :name, :ci_string do
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(name, ^arg(:name)))
+
+      pagination offset?: true, default_limit: 10
+    end
   end
 
   attributes do