core.evalfhirpath

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evalFhirPath() function

Evaluates a FHIRPath expression against a resource or other object.

Signature:

export declare function evalFhirPath(expression: string | FhirPathAtom, input: unknown, variables?: Record<string, TypedValue>, cache?: LRUCache<FhirPathAtom> | undefined): unknown[];

Parameters

Parameter	Type	Description
expression	string | FhirPathAtom	The FHIRPath expression to evaluate.
input	unknown	The resource or object to evaluate the expression against.
variables	Record<string, TypedValue>	(Optional) A map of variables for eval input.
cache	LRUCache<FhirPathAtom> | undefined	(Optional) Cache for parsed ASTs.

Returns:

unknown[]

The result of the FHIRPath expression against the resource or object.