From 113e04ae44ed7578fc6f240f58bb2cfa1f58ca94 Mon Sep 17 00:00:00 2001
From: Matteo Rigon <matteo.rigon7@gmail.com>
Date: Fri, 16 Jul 2021 11:41:38 +0200
Subject: [PATCH] fix(serializer): include metadata in attributes

---
 __tests__/serializer.spec.ts | 3 +++
 src/resource.ts              | 5 +++++
 src/serializer.ts            | 6 ++++++
 3 files changed, 14 insertions(+)

diff --git a/__tests__/serializer.spec.ts b/__tests__/serializer.spec.ts
index 792b637..3a87d56 100644
--- a/__tests__/serializer.spec.ts
+++ b/__tests__/serializer.spec.ts
@@ -33,6 +33,9 @@ describe('serializer', () => {
       name: 'test name',
       description: 'test description',
       sku_code: '12345678',
+      metadata: {
+        asd: 'asdasd',
+      },
     }
 
     const result = await serialize(
diff --git a/src/resource.ts b/src/resource.ts
index 9dde513..7b51fbf 100644
--- a/src/resource.ts
+++ b/src/resource.ts
@@ -28,6 +28,11 @@ export interface CommonResourceAttributes {
 
 export type AttributesPayload<T> = {
   [K in keyof T]?: T[K]
+} & {
+  reference?: string
+  reference_origin?: string
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  metadata?: Record<string, any>
 }
 
 export type RelationshipsPayload<T> = {
diff --git a/src/serializer.ts b/src/serializer.ts
index bbf26d4..b203ea3 100644
--- a/src/serializer.ts
+++ b/src/serializer.ts
@@ -59,6 +59,12 @@ export const serialize = async <T, U>(
     serialized.data.attributes = {}
   }
 
+  // Add metadata if original attributes contain it.
+  // For some reason jsonapi-serializer strips the key
+  if (attributes.metadata && !serialized.data.attributes.metadata) {
+    serialized.data.attributes.metadata = attributes.metadata
+  }
+
   // Manually add relationships to the serialized payload.
   // Serializing relationships seems broken in jsonapi-serializer
   const relationshipKeys = Object.keys(relationships)