FHIRSchema

TypeScript implementation of FHIRSchema converter and validator.

Overview

This project provides:

• Converter: Transforms FHIR StructureDefinitions into FHIRSchema format
• Validator: Validates FHIR resources against FHIRSchema definitions

Installation

npm install @atomic-ehr/fhirschema

Or install the latest canary version:

npm install @atomic-ehr/fhirschema@canary

Usage

Converting StructureDefinition to FHIRSchema

import { translate } from '@atomic-ehr/fhirschema';

const structureDefinition = {
  resourceType: 'StructureDefinition',
  name: 'Patient',
  // ... rest of the StructureDefinition
};

const fhirSchema = translate(structureDefinition);

Validating FHIR Resources

import { validate } from '@atomic-ehr/fhirschema';

const resource = {
  resourceType: 'Patient',
  // ... patient data
};

const schema = { /* FHIRSchema */ };
const context = { schemas: { Patient: schema } };

const result = validate(context, [], resource);
if (result.valid) {
  console.log('Resource is valid');
} else {
  console.log('Validation errors:', result.errors);
}

Development

Running Tests

bun test

Type Checking

bun run typecheck

Building

bun run build

Project Structure

├── src/
│   ├── converter/     # StructureDefinition to FHIRSchema converter
│   ├── validator/     # FHIRSchema validator
│   └── types.ts       # Shared TypeScript types
├── test/
│   ├── unit/          # Unit tests
│   └── golden/        # Golden tests with expected outputs
├── spec/              # Specifications and documentation
├── adr/               # Architecture Decision Records
└── tasks/             # Task management

Development

This project uses:

• Bun as the runtime and test runner
• TypeScript for type safety
• GitHub Actions for CI/CD

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

[License information to be added]