Starting from February 1st, 2020, it will no longer possible to directly create, duplicate, update or delete modular block items using the following endpoints:
POST /itemsPUT /items/:idPOST /items/:id/duplicateDELETE /items/:idDELETE /items/
The only supported way to perform any operation on modular block items will be by updating a modular content field on the parent item.
For example, to create an item with two modular blocks inside its modular content field:
import { SiteClient, buildModularBlock } from 'datocms-client';const client = new SiteClient('YOUR_TOKEN');client.items.create({itemType: '111',content: [buildModularBlock(text: "Foo", itemType: '222'),buildModularBlock(text: "Bar", itemType: '222'),]})
This change is required to ensure atomic, reliable operations on content.