Closing a question with the API

{
  "closed": true
}

The documentation shows false, but that’s just an example of how to toggle it via the API. It needs to be true to close it. False opens it back up. 

But that doesn’t solve your issue with the Unauthorized. 

Here’s what it is: the question has two different Ids (big pain point for me). 

There’s a questionId and a topicId and sometimes there is a public version of the topicId. 

My guess is that you’re using the wrong Id and it’s trying the call on a question that doesn’t exist (often topicId is larger than questionId because it combines all types of topics in the index) so it can’t close a question that it can’t find. 

I’m glad you figured it out!