fix compound nested serialize

Author: nicosefer

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-jsonapi-serializer",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "GOintegro json-api extended serializer/deserializer",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",

src/index.ts

@@ -355,6 +355,11 @@ export class JSONAPISerializer {
     const entityId = get(data, "id");
     const entityType = get(data, "type") || config.type;
 
+    // detect optional whitelist processing
+    // if compound is true and includeWhitelistKeys is not defined should compound everything
+    const shouldProcessIncludedOrCompound =
+      includeWhitelistKeys || (!includeWhitelistKeys && compound);
+
     if (entityId) {
       if (this.isEntitySerialized(serializedEntities, entityId, entityType)) {
         return this.getSerializedEntity(
@@ -413,7 +418,7 @@ export class JSONAPISerializer {
     forIn(relationships, (value, dashCaseKey) => {
       const key = camelCase(dashCaseKey);
 
-      if (!includeWhitelistKeys) {
+      if (!shouldProcessIncludedOrCompound) {
         return;
       }
 

tests/post.test.ts

@@ -0,0 +1,61 @@
+import { JSONAPIDeserializer, JSONAPISerializer } from "../src";
+
+test("JSONAPISerializer: compound nested", async () => {
+  class PostSerializer extends JSONAPISerializer {
+    public serializerConfig = () => {
+      return {
+        type: "posts",
+        attributes: ["content"],
+        relationships: {
+          poll: { config: new PollSerializer().serializerConfig },
+        },
+      };
+    };
+  }
+  class PollSerializer extends JSONAPISerializer {
+    public serializerConfig = () => {
+      return {
+        type: "polls",
+        attributes: ["ttl"],
+        relationships: {
+          options: { config: new PollOptionSerializer().serializerConfig },
+        },
+      };
+    };
+  }
+
+  class PollOptionSerializer extends JSONAPISerializer {
+    public serializerConfig = () => {
+      return {
+        type: "poll-options",
+        attributes: ["title"],
+      };
+    };
+  }
+
+  const postData = {
+    content: "Test",
+    poll: {
+      ttl: "3",
+      options: [
+        {
+          title: "Test 1",
+        },
+        {
+          title: "Test 2",
+        },
+      ],
+    },
+  };
+
+  const postSerializer = new PostSerializer();
+  const output = postSerializer.serialize({
+    data: postData,
+    compound: true,
+  });
+
+  expect(
+    output.data.relationships.poll.data.relationships.options.data[0].attributes
+      .title
+  ).toEqual("Test 1");
+});