@healthcare-interoperability/fhir-query-store

Lightweight, extensible framework for generating data store–agnostic queries from FHIR resources.

✨ Features

• 🏥 Supports core FHIR resource types (e.g., Patient, Appointment, Encounter)
• 🔌 Backend-agnostic: works with any storage engine (MongoDB, SQL, memory, etc.)
• ⚙️ Query generation logic encapsulated in a pluggable FHIRQuery class
• 🔍 Built-in validation, normalization, and integration ID support
• 🔄 Easily extendable for custom business logic or resource types

📦 Installation

npm install @healthcare-interoperability/fhir-query-store

🚀 Usage

import { FHIRQuery } from '@healthcare-interoperability/fhir-query-store';

// Sample FHIR resource
const resource = {
  resourceType: 'Patient',
  id: '123',
  name: [{ family: 'Doe', given: ['John'] }],
};

// Create a FHIRQuery instance
const query = new FHIRQuery(resource);

// Optionally set integration ID
query.setIntegrationId('your-integration-id');

// Generate database-ready query structure
const updates = query.query();

console.log(updates);
/*
[
  {
    resourceType: 'Patient',
    query: {
      updateOne: {
        filter: { id: '123' },
        update: { $set: { ... } },
        upsert: true
      }
    }
  }
]
*/

🧱 Class Overview

FHIRQuery

• constructor(resource: object)
• .setIntegrationId(id: string)
• .query() → Array<{ resourceType, query }>

🧩 Extending

To add custom logic or support new backends, extend the base class:

class CustomQuery extends FHIRQuery {
  query() {
    const base = super.query();
    // Add custom logic here
    return base;
  }
}

📚 Related Packages

• @healthcare-interoperability/fhir-query-store-mongo: MongoDB-specific implementation of FHIRQuery

📄 License

MIT