resolve function in FHIRPATH expression

[dipanjanmukherjeeibm]

Is your feature request related to a problem? Please describe.
resolve() function is a function in FHIR that allows to reference elements across FHIR resources. The resolve() function currently doesn't work in IBM FHIR server.

Describe the solution you'd like
resolve() function is a function in FHIR that allows to reference elements across FHIR resources. The resolve() function is integral to build business rules for FHIR validation requireing cross-resource validation. The documentation for resolve () function in FHIR server states:

/**
    * For each item in the collection, if it is a string that is a uri (or canonical or url), locate the target of the
    * reference, and add it to the resulting collection. If the item does not resolve to a resource, the item is ignored
    * and nothing is added to the output collection. The items in the collection may also represent a Reference, in which
    * case the Reference.reference is resolved.
    *
    * <p>This method creates a resource node that is a placeholder for the actual resource, thus allowing for the FHIRPath
    * evaluator to perform type checking on the result of the resolve function. For example:
    *
    * <pre>Observation.subject.where(resolve() is Patient)</pre>
    *
    * <p>If the resource type cannot be inferred from the reference URL or type, then {@code FHIR_UNKNOWN_RESOURCE_TYPE} is used
    * so that we index these references by default.
    *
    * @param evaluationContext
    *     the evaluation environment
    * @param context
    *     the current evaluation context
    * @param arguments
    *     the arguments for this function
    * @return
    *     the result of the function applied to the context and arguments
    */

Describe alternatives you've considered
example of a FHIR path expression with resolve function that would work in the IBM FHIR Server on coverage profile
period.end <= beneficiary.resolve().deceased as deceasedDateTime

Acceptance Criteria
Any FHIR PATH expression with resolve() function should work when the profile on the IG is invoked by IBM FHIR Server during validation.

Additional context
Add any other context or screenshots about the feature request here.

[lmsurpre]

@dipanjanmukherjeeibm this feature was added and released in IBM FHIR Server 4.8.1.

To enable it, you must set fhirServer/core/serverResolveFunctionEnabled to true in your fhir-server-config.json

Please give it a try and confirm that this addresses your request. If we don't hear back in a day or so, I will plan to close this one out.

[dipanjanmukherjeeibm]

I have tried to add the above in the config file and the problem is now resolved. I am happy for the dev team to close this request as resolved