It's very easy to fall in love with technology sold by professional marketers. However, software engineering is hard because there is no one solution to fit every case.
GraphQL has been a focus for a couple of years already. Before you add this nice-looking abbreviation to your resume, I would like to share summarized points and thoughts on it based on production experience. There is fresh, good material from the famous Alex Xu I would like you to watch first, so I don't need to get into details or repeat them here.