Katana is a lightweight, scalable microframework designed to solve common challenges in healthcare IT system integration. Built with a strong focus on data pipeline orchestration, interoperability layer simplification, and low-overhead integration logic, Katana enables healthcare organizations to rapidly connect disparate systems with minimal custom coding effort.
Katana aims to accelerate healthcare digital transformation by providing a solid technical foundation for building, scaling, and maintaining integration services — helping institutions meet modern demands for interoperability, compliance, and cost-efficiency.
- Lightweight Core: Minimal external dependencies; easily embeddable into existing JVM-based systems.
- Pipeline-Oriented Architecture: Define modular, reusable integration flows for healthcare-specific use cases.
- Interoperability Ready: Built for EHR data exchange scenarios; supports flexible adapters and schema-mapping strategies.
- Rule-Driven Transformations: Easily author and apply transformation and validation rules across incoming and outgoing data streams.
- Scalable Deployment: Designed for both embedded service mode and containerized deployment (Docker/Kubernetes ready).
- Auditability Focus: Native support for traceable data flows and secure logging practices to meet healthcare compliance standards.
- Rapid prototyping of healthcare interoperability microservices (e.g., FHIR resource ingestion, HL7v2-to-FHIR conversion).
- Building lightweight data pipelines for clinical, administrative, and operational healthcare datasets.
- Scaling pilot interoperability projects into production-grade platforms.
- Reducing custom integration overhead by leveraging predefined transformation and routing templates.
- Connecting multiple EHRs within a hospital group under a single patient portal.
- Building audit-compliant transformation layers for sensitive healthcare transaction records.
- Deploying modular ETL pipelines between clinical systems, payers, and national HIE frameworks.
Add Katana as a dependency:
<!-- Maven -->
<dependency>
<groupId>dev.alisa.katana</groupId>
<artifactId>katana-core</artifactId>
<version>0.1.0</version>
</dependency>or
// Gradle
implementation 'dev.alisa.katana:katana-core:0.1.0'(Repository links for Maven Central or GitHub Packages would go here if public.)
IntegrationFlow katanaFlow = Katana.flow()
.input("FHIR_R4_Bundle")
.transform(new FhirToInternalModelTransformer())
.route(new ServiceRouter())
.output("DownstreamAnalyticsPipeline")
.build();Katana includes a simple FhirIngestionService capable of reading a FHIR Bundle
from a JSON string or file. The service can be triggered through the new /fhir- ingest endpoint.
Example usage:
curl -X POST "http://localhost:8082/fhir-ingest?file=resources/bundle.json"When invoked, the service will parse the bundle (using a stubbed parser) and
return a PatientRecord representation.
mvn package # compiles the project
mvn test # executes unit tests
java -cp target/katana-1.0-SNAPSHOT.jar com.norwood.AppKatana is distributed under the MIT License.
Katana is part of the open-source healthcare innovation initiatives launched to accelerate interoperability adoption across the United States healthcare ecosystem.
Contributions welcome!