Add batch support for Headless APIs

• Type: Story
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: None
• Fix Version/s: 7.0.X, 7.1.X, 7.2.10 DXP FP17, 7.2.10.6 DXP SP6, 7.2.X, Master
• Component/s: Headless Delivery API
• Labels:
  • 7110-sp-pending
  • 7210-sp-pending
  • fc_20_01
  • liferay-dxp-72-sp6
  • liferay-fixpack-dxp-17-7210
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Epic/Theme:
  • API_Content_Management
• Epic Link: headless-batch-operations

• We have the issue of not knowing (without checking the code) which endpoints support batch or not... so one idea would be indicating it in the OpenAPI profile

• Related to that, if we add paths like /headless-admin-user/v1.0/organizations/batch we could add (with the REST builder) the annotations automatically (or add them by default to all entities, something that brian has suggested)

• For frontend developers, creating multipart requests is hard, one idea would be adding support for simple body requests (for CSV, JSON and JSONL, excel can't be supported that way)

• Other idea for frontend developer would be adding a flag (header or query param) to enable a pure synchronous mode (requests wait until everything is executed and returns result of the job directly)

• status report with success, failures, explanation

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