SCOM REST API Authentication Error

Question

Anonymous

Hi,

My role is an operator and I'm trying below SCOM login api using postman and i'm getting 401 error. I have followed their official documentation.

POST http://<Servername>/OperationsManager/authenticate

Request is like below :

POST /OperationsManager/authenticate HTTP/1.1
Host: hostname
Content-Type: application/json
Cache-Control: no-cache
Postman-Token: token

{"credentials":"EncodedString(Network:domain\username:password)"}

And also i tried some get calls using browser and those are working.
Someone please assist. Thanks in advance!

0 comments

1 answer

Answer 1

Leon Laude 86,116

I wrote a quickstart blog post about SCOM REST API, I suggest you have a look at my examples there:

My examples use PowerShell which is a modern but also a great way if you want to start automating.

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(If the reply was helpful please don't forget to upvote or accept as answer, thank you)

Best regards,
Leon

Anonymous

2020-11-02T09:40:01.767+00:00

Hi @Leon Laude ,

I have tried your first example to get all new alerts.
Still i'm getting below error.
{"errorMessage":"The user credentials are invalid or user does not have permissions to access the application.}

changes i have made :
$BodyRaw = "AuthenticationMode:domain\username:password" and Host
Leon Laude 86,116 Reputation points

2020-11-02T09:42:23.647+00:00

Your account does not have sufficient permissions, try first with Administrator rights.
Anonymous

2020-11-02T10:39:42.117+00:00

Thank you for your quick responses.
My role is operator and do you know what is the suitable user role to achieve this? (According to POLP).

I followed below documentation,.
https://learn.microsoft.com/en-us/previous-versions/system-center/system-center-2012-R2/hh872885(v=sc.12)?redirectedfrom=MSDN
Leon Laude 86,116 Reputation points

2020-11-02T10:42:08.113+00:00

I'm not entirely sure, but I do think you'll need admin rights for most REST API calls.
Here's the newest documentation about the user roles:
https://learn.microsoft.com/en-us/system-center/scom/manage-security-create-runas-account?view=sc-om-2019