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FHIR Client Operator#

Authors: Holoscan SDK Team (NVIDIA)
Supported platforms: x86_64, aarch64
Language: Python
Last modified: June 28, 2025
Latest version: 1.1
Minimum Holoscan SDK version: 2.0.0
Tested Holoscan SDK versions: 2.5.0, 3.3.0
Contribution metric: Level 2 - Trusted

A Holoscan operator that enables seamless interaction with FHIR (Fast Healthcare Interoperability Resources) services for querying and retrieving patient medical records.

Overview#

The FHIR Client Operator provides a standardized interface for healthcare data exchange through FHIR services. It enables applications to securely query patient medical records while handling authentication, resource management, and error handling. The operator is designed to work with any FHIR-compliant server and supports various FHIR resource types.

Key features:

  • FHIR service querying with patient search capabilities
  • OAuth2 authentication support
  • Configurable FHIR endpoint
  • Support for various FHIR resource types
  • Comprehensive error handling and logging

Requirements#

  • holoscan
  • requests
  • fhir.resources

Example Usage#

Please check fhir_client.py in Generative AI Application on Holoscan integrating with FHIR Services.

Name Input/Output#

  • Input: request - JSON representation of the FHIRQuery object containing search parameters
  • Output: out - FHIRQueryResponse object containing the original request ID and matching patient records

Parameters#

  • fhir_endpoint (str): FHIR service endpoint URL (default: "http://localhost:8080/")
  • token_provider (TokenProvider): Optional OAuth2 token provider for authentication
  • verify_cert (bool): Whether to verify server certificates (default: True)