FHIR Chat · How to validate FHIR Resource is Updated or not.

Stream: implementers

Topic: How to validate FHIR Resource is Updated or not.

Karimulla (Nov 22 2017 at 06:18):

Hi,

I have some of Resource in local data base which are got from server.
I am displaying those Resource in View. If user come again to this view instead of getting again Resources from server I want show data from local database data. But I want to check is there any api end point in FHIR to check whether thisResources are updated or not?

Example: I am getting List of AllergyIntolerance resources of selected patient and displayed in app view. Saved those response in local database.
Whenever user returns to the view again instead of getting Resource from server I want to show data from local Database. But I want to verify those allergy intolerance resources are updated or not?

Can you please help me for check FHIR resource object Updated or not with server?

Thank you in Advance.

Ben Spencer (Nov 22 2017 at 06:30):

https://www.hl7.org/fhir/http.html#cread

Karimulla (Nov 22 2017 at 06:43):

Thank you @Ben Spencer .

Do I need to send. If-Modified-Since in header as value last modified date?
Right?

Ben Spencer (Nov 22 2017 at 06:44):

yes, the latest value you have locally for the resource

Karimulla (Nov 22 2017 at 06:46):

I need to send the resource value in Time intervals or as String?

Ben Spencer (Nov 22 2017 at 06:56):

it's an http formatted date: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-Modified-Since

Karimulla (Nov 22 2017 at 07:00):

Thank you @Ben Spencer .

I have one more doubt, as I told in my Scenario example for getting Allergy Intolerance Resources. Do I need to make a request for each resource or is there any way to get updated info of all resource in single Request?