What are GraphQL fragments and how do I use them?

What are GraphQL fragments and how do I use them?

GraphQL fragments are reusable units of a GraphQL query. They allow you to define a set of fields that can be included in multiple queries.

Can you give me an example of a GraphQL fragment?

Sure! Here's a simple example:

fragment userFields on User {
  id
  name
  email
}

You can then use this fragment in your queries like this:

query {
  users {
    ...userFields
  }
}

How do fragments help in optimizing queries?

Fragments help reduce redundancy in your queries, making them cleaner and easier to maintain. They also ensure that you fetch the same fields consistently across different queries.

Are there any limitations to using fragments?

Yes, fragments can only be used on types that are compatible with the fragment's type definition. Also, they can't be used in inline fragments.