1. FHIR User Guide
  2. FHIR Operations
  3. Reading data
  4. Diff at Instance Level

Diff at Instance Level

When you invoke the $diff operation at the instance level (meaning it is invoked on a specific resource ID), it compares two versions of the given resource.

Parameters

  • fromVersion=[versionId]—Optional. If specified, compare using this version as the source. If not specified, the immediately previous version is compared.
  • includeMeta=true—Optional. If specified, changes to Resource.meta are included in the diff. This element is omitted by default.

Request: Reading Data with a Diff at Instance Level


Request: Reading Data with a Diff at Instance Level

Response: Reading Data with a Diff at Instance Level

The server produces a response similar to the following:


Response: Reading Data with a Diff at Instance Level

Parent topic: Reading data