Questions Regarding FHIR Server Installation and Implementation

We are in the process of installing a FHIR server on our InterSystems interface engine and have encountered a few questions. Your expertise and insights would be greatly appreciated:

1. Automatic Handling of Requests and Responses:
   • Is installing a FHIR server sufficient to handle requests (POST, GET, PUT) automatically without manual intervention? Can we expect automatic creation and updating of resources based on incoming requests?
2. Storage of FHIR Resources:
   • Where are FHIR resources typically stored? Is it in a database, global arrays, or another form? Are there tools available to visualize and manage these resources in a manner similar to SQL tools?
3. Accessing Data in Resources via Code:
   • How can we access data in FHIR resources programmatically? Are there specific libraries provided by InterSystems for this purpose?
4. FHIR.HS.FHIRServer.Interop.Operation/FHIR.HS.FHIRServer.Interop.Service Class:
   • I came across the FHIR.HS.FHIRServer.Interop.Operation class in an exercise on the InterSystems learning site. Can anyone confirm its purpose, especially regarding storing JSON (or XML) as a resource? Additionally, is there a way to use it for other data retrieval and update operations?
5. Scenario Implementation:
   • We have a scenario where, upon receiving a GET response from a third-party system, we need to:
     • Check for patient data in the resource.
     • If data exists, retrieve and send it to the requestor.
     • If not, send a PDQ message to another third party.
     • Upon receiving PDQ response, store data in the resource and transform HL7 into a FHIR response to send back to the original requestor.
   • What predefined classes would be suitable for implementing this scenario? Any guidance on the steps involved?

Your insights and suggestions would be immensely valuable in navigating through these implementation challenges. Thank you in advance for your time and assistance!