How to Build a Unified API Gateway for Patient-Facing and Internal Applications
How to Build a Unified API Gateway for Patient-Facing and
Summary
Healthcare organizations must implement a unified API gateway in complex digital environments, ensuring organized data communication between patient portals and backend systems. This enhances security and scalability while managing diverse data sources.
Details
In modern healthcare IT, essential medical information is exchanged across various applications—from patient portals to EHRs and lab databases. A 'unified API gateway' serves as the primary entry point for this complex integration. The development process requires defining core requirements by collaborating with stakeholders (IT, clinical departments) to identify user types (patients, providers) and use cases (appointment booking, test result retrieval, claims filing). Data formats involved include HL7 v2 messages, FHIR resources, and JSON payloads. Technically, platforms like AWS API Gateway are used, implementing robust security via OAuth 2.0/JWT and Role-based access control. Given the handling of PHI (Protected Health Information), HIPAA compliance is critical, requiring logging, data encryption, and strict access controls. A key architectural requirement is managing dual channels: external consumers (patient apps) and internal systems (lab interfaces). These must be separated but routed through a single gateway for centralized control. Furthermore, scalability and high availability are achieved by using containerization technologies like Kubernetes and implementing versioning policies to manage API changes smoothly.
Technology Note
FHIR（Fast Healthcare Interoperability Resources）は医療データ交換の国際標準。このエントリの関連技術: HL7
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