How to get a post title for a given post ID, even if that post ID is an answer and not a question?

Question

I'm trying to beautify the reputation audit. If I want to show the post title for a reputation change event, however, I have a problem -- I don't know if the post ID is relative to a question or an answer.

By poking around with the API a bit, it seems that the only way to get a result in my case is:

1. call /answers/{id};
2. • if I get a result it's an answer, thus I should call /questions/{parent-id}/ for the title.
   • If I don't get a result, it's a question, thus I should call /questions/{id} for the title.

Is there a better way of doing this?

Answer 1

I believe that's a correct approach.

There's a way to optimize it saving one request but it's a little bit unsafe for this bug:

1. call /questions/{id};
2. • If you get a result with a title parameter it's a question
   • If you get a result without a title parameter it's an answer, thus you should call /answers/{id} for the title

EDIT:
I've just realized that your solution can be optimized easily just removing the /questions/{parent-id}/call;
you don't need it because /answers/{id}; already has the title parameter inside the response.

Answer 2

You should be able to achieve this via the non optional "is_question" field of route /revisions/{id}:

   "is_question": {
        "description": "if the post is a question",
        "values": "boolean",
        "optional": false
      },

See for example the results for:

• your question, which returns true accordingly
• my answer, which returns false accordingly