Bulk upsert support in the REST API for Concepts and Drugs

Development
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Hi all,

Does the OpenMRS REST API (or the FHIR module) currently support bulk upsert operations for Concepts and Drugs — i.e., a single request that creates records if they don’t exist and updates them if they do, keyed on UUID or some other unique identifier?

From what I can see in the docs, the standard endpoints handle one resource per call (POST to create, POST to /{uuid} to update), which means syncing a catalog of any meaningful size requires a GET-then-decide-then-write pattern per item. That’s been painful for us in practice — slow, chatty, and brittle when the network drops mid-sync.

A few specific questions:

  1. Is there an existing endpoint, module, or pattern that supports batch/bulk writes for these resource types?
  2. If not, is anyone aware of work in progress on this, or is the recommended approach still client-side loops?
  3. For folks doing this at scale today — are you going through the REST API, FHIR, or hitting the database directly?

Any pointers appreciated.

Thanks!

@dkayiwa @ibacher

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Roughly speaking, the “bulk load” here is intended to be done via either the OCL module or Iniz. Is there a reason neither of those works for your scenario?