HealthTAG API Configuration

The Hospital API reads .healthtag-api.env to locate Kong, authenticate its requests to the hospital’s FHIR server, and contact the upstream HealthTAG API. HealthTAG Lambda functions call this API from AWS.

Environment variables

Set all three variables. FHIR_API_KEY is a secret; do not commit its value or include it in logs.

Variable	Default Value	Explanation
FHIR_URL	http://kong:8000/fhir-api-key-auth	The internal URL used to communicate with the Kong API Gateway, which then routes the request to the FHIR Server.
FHIR_API_KEY	<FHIR_API_KEY>	Required secret, managed by the hospital. The Hospital API sends it in the apikey header when querying the key-auth FHIR route. It is not the credential used by Lambda to call the Hospital API.
HEALTHTAG_API_URL	https://api.healthtag.io	The base URL for the upstream HealthTAG API that this node will interact with.