FHIRKit Client

fhir-kit-client is a robust Node.js FHIR client library designed to facilitate interaction with FHIR servers. Currently at version 1.9.2, it maintains an active release cycle, frequently updating its 1.x.x branch to incorporate new features and fixes. This library supports a wide range of FHIR versions, including R4, STU3, and DSTU2, ensuring broad compatibility with various healthcare systems. It offers comprehensive support for all FHIR REST actions, operations, and advanced features like pagination, batch/transaction processing, and handling of absolute, in-bundle, and contained references. A key differentiator is its emphasis on modern JavaScript practices, utilizing a contemporary async/await structure and ES6 Classes, while also providing full TypeScript support. It includes features like metadata caching, SMART security integration, and capability-checking based on server statements. The library is built with minimal dependencies, aiming for efficiency and ease of integration into existing projects.