Azure-Devops remove user from projectContributor via Rest API - azure-devops

Question

Using PowerShell I am attempting to remove a user from groupType projectContributor so I can move him to the Project Team. I can accomplish the add to the Project Team however I have tried everything I can to remove this users entitlement using a PATCH without success. FYI to avoid comments, OrgUrl, projectId and userId are being passed.
$b= #"
[
{
"op": "remove",
"path": "/projectEntitlements",
"value": {
"projectRef": {
"id": "$projectID"
},
"group": {
"groupType": "projectContributor"
}
}
}
]
"#
$uri = "$orgURL/_apis/userentitlements/$userId`?api-version=5.1-preview.2"
Invoke-RestMethod -Uri $uri -ContentType "application/json-patch+json" -Body $b -Method PATCH -Headers #{ Authorization = ("Basic {0}" -f $base64AuthInfo)}
The error I am getting is this:
projectId","typeName":"System.ArgumentException, mscorlib","typeKey":"ArgumentException","errorCode":0,"eventId":0}
At line:20 char:1
+ Invoke-RestMethod -Uri $uri -ContentType "application/json-patch+json ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand
Any help / examples are appreciated.
I have gone through all the API documentation for Azure DevOps API.

Answer 1

I got the same error using User Entitlement rest api.
It worked for me with Remove Member From Group rest api.
DELETE https://vsaex.dev.azure.com/{organization}/_apis/GroupEntitlements/{groupId}/members/{memberId}?api-version=5.1-preview.1
When a user is added to a project as Project Contributors. This user will be added to group [ProjectName]\\Contributors of this Project.
You can then use Group List rest api to get the group id of [ProjectName]\\Contributors. The {memberId} of above Remove Member From Group api is user's userId. Then you can just call above api to remove the user from the project contributors group.

Answer 2

Please try this:
$b= #"
[
{
"op": "remove",
"path": "/projectEntitlements/$projectID",
"value": {
"projectRef": {
"id": "$projectID"
},
"group": {
"groupType": "projectContributor"
}
}
}
]
"#
And since you are removing value under this path I'm not sure if you need value, so this should provide you the same:
$b= #"
[
{
"op": "remove",
"path": "/projectEntitlements/$projectID",
"value": ""
}
]
"#