From 3780903ea4f27a936862b4173550885c8ad7ca66 Mon Sep 17 00:00:00 2001
From: Georgiy Melnikov <g3orge.miller@gmail.com>
Date: Thu, 28 Oct 2021 16:26:54 +0500
Subject: [PATCH] add symbolize keys option to deserializer

---
 README.md                      |  1 +
 lib/jsonapi/deserialization.rb |  8 ++++++--
 spec/deserialization_spec.rb   | 11 +++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8c95c08..12f7cbc 100644
--- a/README.md
+++ b/README.md
@@ -347,6 +347,7 @@ The `jsonapi_deserialize` helper accepts the following options:
  * `except`: returns exclusively attributes/relationship which are not in the list
  * `polymorphic`: will add and detect the `_type` attribute and class to the
    defined list of polymorphic relationships
+ * `symbolize_keys`: returns hash with symbolized keys
 
 This functionality requires support for _inflections_. If your project uses
 `active_support` or `rails` you don't need to do anything. Alternatively, we will
diff --git a/lib/jsonapi/deserialization.rb b/lib/jsonapi/deserialization.rb
index 0a9d5de..ceb7443 100644
--- a/lib/jsonapi/deserialization.rb
+++ b/lib/jsonapi/deserialization.rb
@@ -44,7 +44,7 @@ def jsonapi_deserialize(document, options = {})
 
       # Transform keys and any option values.
       options = options.as_json
-      ['only', 'except', 'polymorphic'].each do |opt_name|
+      ['only', 'except', 'polymorphic', 'symbolize_keys'].each do |opt_name|
         opt_value = options[opt_name]
         options[opt_name] = Array(opt_value).map(&:to_s) if opt_value
       end
@@ -77,7 +77,11 @@ def jsonapi_deserialize(document, options = {})
         end
       end
 
-      parsed
+      if options['symbolize_keys']
+        parsed.symbolize_keys
+      else
+        parsed
+      end
     end
   end
 end
diff --git a/spec/deserialization_spec.rb b/spec/deserialization_spec.rb
index b23c183..6bcba4c 100644
--- a/spec/deserialization_spec.rb
+++ b/spec/deserialization_spec.rb
@@ -83,5 +83,16 @@
         )
       end
     end
+
+
+    context 'with `symbolize_keys`' do
+      it do
+        expect(
+          jsonapi_deserialize.call(
+            document, symbolize_keys: true
+          )
+        ).to match(jsonapi_deserialize.call(document).symbolize_keys)
+      end
+    end
   end
 end