add route for test

test/common/app.common.ts

@@ -102,4 +102,12 @@ export function routes(app) {
       metadata: req.body.metadata,
     });
   });
+  app.post('/v1/pets_charset', function (req, res, next) {
+    // req.file is the `avatar` file
+    // req.body will hold the text fields, if there were any
+    res.json({
+      ...req.body,
+      id: 'new-id',
+    });
+  });
 }