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An absorber is a schema mapper that converts an external data format into Olira event types. On the standard logging path you choose a log_type and build an Olira-shaped payload yourself. With an absorber, you hand over data in its native format and it produces the right events for you. Absorbers sit in front of the same ingestion pipeline as regular logs: whatever they emit is validated against the event catalog, written as logs, and compiled into patient state like any other submission. One input may produce zero events (unsupported or unmappable content), one event, or several. A FHIR CarePlan, for example, can yield both clinical_plan_item and treatment_phase.

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FHIR absorber

The FHIR absorber accepts FHIR R4 resources and is the mapper behind every FHIR entry point on the platform:
  • EMR integrations: Epic and Cerner integrations stream resources through it automatically.
  • SDK and REST: log_fhir() (POST /v1/fhir/resource) submits a single resource from your codebase.
  • Console upload: FHIR files uploaded through the Console.
  • Historical ingestion: FHIR-formatted backfill jobs.
It covers 17 resource families, including Observation, Condition, MedicationRequest, DiagnosticReport, DocumentReference, and CarePlan. Observation resources are routed by category and LOINC code to the appropriate event type (vitals, labs, genomics, functional class, and so on). The full resourceType → event type matrix, per-resource examples, and error cases live in the log_fhir reference.

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Single resources vs bundles

Reference resolution depends on the entry point:
  • Bundles (integrations, historical ingestion): linked resources are resolved together. Panel DiagnosticReport results reference their Observation entries, vital-signs Observations at the same timestamp merge into one vitals_measurement, and medication resources see their sibling Medication entries.
  • Single resources (log_fhir): each call is processed alone; cross-resource references are not resolved. Use historical ingestion or an EMR integration for multi-resource imports.

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More absorbers

The FHIR absorber is the first of several planned mappers for common healthcare formats. If you have a format you’d like Olira to absorb natively, contact us.