HAPI FHIR Introduction: An OSS Library Realizing Standardized Medical Information Exchange
HAPI FHIR入門 - 医療情報交換の標準化を実現するOSS - Zenn
Summary
HAPI FHIR, an open-source Java library implementing the HL7 FHIR standard, was developed and provided by UHN. This article explains its major components, from data models to REST clients, using practical code examples.
Details
The emergence of HL7 FHIR addressed long-standing challenges in data exchange within medical information systems. HAPI FHIR is a powerful open-source Java library that implements this international standard and was developed by UHN (University Health Network). The article details the library's structure, covering key components such as the FHIR Data Model, Parser/Encoder, and REST Client. Notably, the "HAPI FHIR JPA Server" simplifies building a complete FHIR server by allowing persistence of FHIR resources in a database using JPA. Practical examples are provided, including project setup via Gradle, creating and JSON-encoding a Patient resource, and executing searches against a public test server. These steps guide readers through the concrete process of utilizing HAPI FHIR for tasks like adding FHIR interfaces to existing systems or developing new FHIR-compliant systems. HAPI FHIR is utilized in various scenarios, such as integrating electronic health records (EHR) with FHIR interfaces and building regional healthcare networks, making it a crucial tool for improving standardization and interoperability in healthcare IT.
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