delete a tuple in ory-keto

[rcarls11]

I am working with a ory-keto server (setup by another team, cant access anything, logs, dev-settings...).

I want to delete a tuple (using its api with postman)
I can list tuples and I can add them, but I cant delete them. The tuple I want to delete looks like

{
    namespace : "ns"
    object : "o1"
    relation :"r1"
    subject_set:
    {
        namespace : "ns",
        object :"o2"
        relation :"r2"
    }
}

So Im making a DELETE-request to https://ory-keto-server/admin/relation-tuples?namespace=ns&object=o1&relation=r1&subject_set.namespace=ns&subject_set.object=02&subject_set.relation=r2

I get error "400 - Bad Request", but no other hints on what the problem is
With a http-GET-request, same endpoint and same parameters, I can get the selected Item. I get 1 hit.
I can create items, so my credentials are ok

What can be the issue? Somewhere (on the web) it seems like I need subject_Id, but my tuple does not have subject_id, only subject set.

PS. I dont know much about ory-keto, only that that other team is using it

[vinckr]

Hello @rcarls11 ,
sorry you are having trouble.
AFAIK either the subject_ID or subject_set is required.
Did you try out a more "basic" DELETE-request? Maybe something is malformed in the request.

@zepatrik anything special about DELETE /admin/relation-tuples that I am missing here?