· Mar 14, 2022

Executing Actions on Global Interaction / Global Hooks?

Hey InterSystems Community!

This is probably far-fetched - is there a way to get notified/get a piece of code triggered whenever the state of a global changes?

Now what could I possibly want with that? Quite simple! I would like to forward the content of a global (in this case the "FSLog" global written by the FHIR implementation) while adding timestamps to it - to create some sort of file-based logging for it.

Product version: IRIS 2021.1
Discussion (9)3
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How about polling the global looking for updates? It would be lightweight to just check if the value of ^FSLOG has incremented since the last check:

set lastFSEntry = ^FSLOG

or use $order:

set lastFSEntry = $order(^FSLOG(""),-1)

As for timestamps, in my test environment all of the ^FSLOG entries seem to end with timestamps already:

^FSLOG(41)="DispatchRequest^HS.FHIRServer.Service^11062|Msg|  [1] -> DO  0|03/14/2022 01:57:19.398158PM"

Mine doesn't do that - yet. Still using HealthShare 2020.1. I assume it'll be added with a later version!

11:     ^FSLOG(10)    =    "DispatchRequest^HS.FHIRServer.Service^3245|Msg|Dispatch interaction search-type for MedicationAdministration"
12:     ^FSLOG(11)    =    "BuildIncludeList^HS.FHIRServer.Service^3245|_include|include: "
13:     ^FSLOG(12)    =    "BuildRevIncludeList^HS.FHIRServer.Service^3245|_include|revInclude: "

As for the polling - I guess with a timestamp maybe added in the future (We're planning to upgrade soon), this may very well be the smartest solution. Thanks!

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