Have you worked with GraphQL? Do you know the difference between GraphQL and REST API?

Yes, I have worked with GraphQL. The main difference between GraphQL and REST API is that GraphQL allows the client to request exactly the data it needs in a single query structure, whereas REST API typically requires multiple requests to different endpoints to retrieve related data.

Advantages of GraphQL:

• Flexible queries: the client defines the response structure.
• Less redundant data, as unnecessary information is not returned.
• Ability to fetch related data in a single request.

Example of a GraphQL query:

query {
  user(id: "1") {
    name
    posts {
      title
    }
  }
}

For such a request in REST, it might be necessary to make separate requests to /users/1 and /users/1/posts.