As the frontier between frontend and backend is not clear in most people's minds (especially clients), frontend developers sometimes have to deal with backend requests. They can ask you to create an API, an admin panel, etc.

If you are a freelancer or working on a small team without a backend developer, how do you handle those requests? Do you give it a try or just refuse it straight away?

I am interested in hearing about different experiences on this topic. Leave your answer as a comment.