Towards GraphQL-Based Interoperability Between Business Meta-Models and FHIR Resources.

Abstract

This paper presents a GraphQL-based solution for achieving interoperability between business meta-models and FHIR resources while reducing query complexity. A GraphQL API is implemented for data retrieval from the meta-model and tested using ChilliCream's Nitro tool. It is integrated with GraphQL Mesh, which maps FHIR R5 resource types to corresponding business meta-models. The Mesh API processes queries or mutations, translates them into GraphQL API calls, and converts the results back into FHIR objects. Testing is conducted using Hive Gateway. Future work includes validating this approach through artificial medical data exchanges.