Features/support serialization in array items

src/middlewares/parsers/schema.preprocessor.ts

@@ -205,6 +205,9 @@ export class SchemaPreprocessor {
           const child = new Node(node, cschema, path);
           recurse(node, child, opts);
         });
+      } else if (schema.type === 'array' && !!schema.items) {
+        const child = new Node(node, schema.items, [...node.path, 'items']);
+        recurse(node, child, opts);
       }
     };
 

test/resources/response.object.serializer.yaml

@@ -21,6 +21,27 @@ paths:
                   id:
                     type: number
 
+  /array-of-date-times:
+    get:
+      responses:
+        200:
+          description: date-time handler
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  users:
+                    type: array
+                    items:
+                      type: object
+                      properties:
+                        created_at:
+                          type: string
+                          format: date-time
+                        id:
+                          type: number
+
   /date:
     get:
       responses:
@@ -41,4 +62,4 @@ components:
         id: 
           type: number
         created_at:
-          $ref: "#/components/schemas/Date"
+          $ref: "#/components/schemas/Date"

test/response.object.serializer.spec.ts

@@ -28,6 +28,15 @@ describe('response serializer', () => {
             created_at: date,
           });
         });
+        app.get([`${app.basePath}/array-of-date-times`], (req, res) => {
+          let date = new Date('2020-12-20T07:28:19.213Z');
+          res.json({
+            users: [{
+              id: req.params.id,
+              created_at: date,
+            }],
+          });
+        });
         app.get([`${app.basePath}/date`], (req, res) => {
           let date = new Date('2020-12-20T07:28:19.213Z');
           res.json({
@@ -66,5 +75,12 @@ describe('response serializer', () => {
         .then((r) => {
           expect(r.body.created_at).to.equal('2020-12-20');
         }));
+    it('should validate and serialize date-time in object from array', async () =>
+      request(app)
+        .get(`${app.basePath}/array-of-date-times`)
+        .expect(200)
+        .then((r) => {
+          expect(r.body.users[0].created_at).to.equal('2020-12-20T07:28:19.213Z');
+        }));
   });
 });