I always use %Status and try to wrap calls in this macro:

#define qoe(%expr) $$$QuitOnError(%expr)

For example:

$$$qoe(..computeDigest(canonicalized))

$$$ERROR($$$SQLError, SQLCODE, %msg)

You can use PythonGateway to call Python code from InterSystems IRIS directly.

Example:

set sc = ##class(isc.py.Main).SimpleString("x='HELLO'", "x", , .x)
write x
>HELLO

You can start with

set %gw = createJavaGateway()

Where createJavaGateway is

ClassMethod createJavaGateway()
{
  quit:$d(%gw) %gw
  /// init connection
}

And remove disconnect part. This way %gw variable would stay alive betwee the calls.

Is the response actually compressed?

I thought automatic decompression is happening a few layers down on the stack.

Use session id to track data between calls.

In general I would suggest moving to REST stateless architecture.

Try serving files from

<IRIS>\mgr\Temp\

directory.

By default InterSystems IRIS runs under system account which does not have access to your user account folders.

I prefer

johndoe.test.lib.class

As long as storage aligns, you can use this approach.

Calling @Anton Umnikov 
 

How are you planning to determine to which service the message should go?

They are usually Stored in:

C:\Users\<USER>\Documents\Intersystems\CodeSnippets.txt

If they are not there open Studio -Instruments -  Parameters -  Environment - Code Fragments

The file path would be there:

Check dformat 18-21.

Pleas port relevant parts of ExecuteResult class.

If the user does not have W access on routines db he will not be able to edit it.

Also the  whole DB might be marked as RO.

Create your own context class and redefine getDisplayList there. Docs.

Dmitriy is correct but for your specific use case (auto-removed globals) use Process Private Globals as they are automatically deleted on process end.

Do you want to search at storagetime or at runtime?

%Compiler package can do that but it's not supported.

Reimport linked table.

looks interesting.

OEX link does not work.