topic Re: GetUser - need only user name in ArcGIS Pro Questions

GetUser - need only user name

LukeGilner1 — Thu, 29 Jul 2021 15:59:08 GMT

I'm trying to get the currently logged in username in an Arcade expression in ArcPro 2.8. I've used the GetUser(Portal('https://www.arcgis.com')) to populate the user id, username, name, email etc. in a big long string, but I only want the username. How can I do that? Seems like it should be fairly straight forward.

Re: GetUser - need only user name

ScottLehto3 — Wed, 04 Aug 2021 17:33:22 GMT

I am wondering how to do this in C# using the Pro SDK.

Re: GetUser - need only user name

LukeGilner1 — Tue, 10 Aug 2021 13:53:19 GMT

I've figured this out using a combination of GetUser, Mid, and Split functions. The GetUser returns the long string of id, username, name, email, etc., so I used the Mid function to separate a portion of it, where the username begins. Since our all of our users usernames are different lengths but have a "@" symbol in them, I was able to use the Split function to split it by the "@", which returns an array, so then I called to return the first part of the split array (array[0]). I only need this first part in my data. See below for what I entered in the calculate field tool. I'm sure there's an easier way to do this.

var userinfo = Mid(GetUser(Portal('https://www.arcgis.com')),53,20);
var array = Split(userinfo,"@",1);
var username = array[0];
return username;

Re: GetUser - need only user name

Spacelord — Wed, 11 Aug 2021 14:56:20 GMT

I'm sure there's an easier way to do this.

I guess there is a slightly more elegant way. I searched the web for hours und struggled with my own fiddly solution until I found this video. Try this. I think it will work with every other entry in the dictionary list:

var p = Portal('https://www.arcgis.com');
var u = getUser(p);
var fullName = u.fullName;
return fullName;

Re: GetUser - need only user name

LukeGilner1 — Wed, 11 Aug 2021 15:54:03 GMT

YES - THANK YOU!

I knew there had to be an easier way to get the specific items from the dictionary list. I too stumbled upon that video after hours of web searching, but it seemed like I needed to identify the specific users so it wouldn't work for me.

I modified your code slightly to grab the username, and I also still needed to use the split function because I only wanted the first part of the username. Thanks again! I get discouraged when I don't receive responses from the community.

var p = Portal('https://www.arcgis.com');
var u = getUser(p);
var fullusername = u.username;
var array = Split(fullusername,"@",1);
var username = array[0]
return username;

Re: GetUser - need only user name

MichaelTurner1 — Mon, 28 Aug 2023 22:03:37 GMT

I just modified this code for my own professional use. It runs and returns my username in the arcade editor, but creates a null in Field Maps.
Does anyone have any ideas why this might be, or what could be done to fix the error?

Re: GetUser - need only user name

LukeGilner1 — Tue, 29 Aug 2023 13:40:09 GMT

Maybe post the code so we can try to help. I'm not sure what the problem would be. Are you using the correct Portal for your Field Maps? I believe it would be different than the above example if you're using Enterprise.

Re: GetUser - need only user name

MichaelTurner1 — Tue, 29 Aug 2023 21:19:41 GMT

Ugh. Sorry to gum up the forum with a non-issue. I had changed the portal to my organization's, but had made a typo in doing so. I corrected it, and it works on and offline. Thank you for the help!

Re: GetUser - need only user name

LukeGilner1 — Wed, 30 Aug 2023 11:54:12 GMT

Pobodys Nerfect. Glad you figured it out.

Re: GetUser - need only user name

MarkBockenhauer — Fri, 15 Mar 2024 21:03:56 GMT

For anyone searching how to do this, and finding this thread, you can also do the following:

return getuser(portal('https://www.arcgis.com')).username

Re: GetUser - need only user name

BigLouC — Wed, 29 Oct 2025 12:14:32 GMT

Thank you for this!

Re: GetUser - need only user name

scardina — Tue, 18 Nov 2025 22:47:07 GMT

In case anyone else gets here while troubleshooting - this was the solution for me for about a year, but somehow upgrading to ArcGIS Pro 3.6.0 has broken it. I'm getting an unexpected null. I'm signed in to the portal just fine - nothing changed but the upgrade.