add template to json store

pages/api/document/index.ts

@@ -33,6 +33,7 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
     const storeData = Object.assign({}, options, {
       id,
       created: new Date().toISOString(),
+      template: templateName,
     })
     await store.add(storeData)
     res.status(200).json({ id: id })