Allow us to call `setUserInfo` without completely wiping all previously set properties set by `addUserProperties`

[StylianosGakis]

Feature description

My use case is that I have independent sources for where some of my attributes come, and where my ID comes from. Whenever each one of those change, I used to call Datadog.getInstance().addUserProperties().
Now I wanted to start using setUserInfo to set my ID, only to realize that this then simply clears (here) the previously set attributes.

Proposed solution

I would need one of the two options:

• Provide a way to grab the existing attributes, so that I can grab them, and then call setUserProperties(id, ..., grabbedAttributes) to set the ID and re-set the attributes too
• Provide a way for me to set the user info without clearing the extra properties as a hidden side-effect

Other relevant information

No response

[xgouchet]

Hi @StylianosGakis ,
thanks a lot for opening a feature request, we included that in our internal tracker and we will try and address this in our roadmap.