Use Fragments

Reuse field selections across queries with GraphQL fragments.

Anti-Pattern

# BAD: Duplicating field selections
query GetTriple($id: String!) {
  triple(term_id: $id) {
    subject {
      term_id
      label
      creator { id label }
    }
    predicate {
      term_id
      label
      creator { id label }
    }
    object {
      term_id
      label
      creator { id label }
    }
  }
}

Best Practice

# GOOD: Using fragments
fragment AtomBasics on atoms {
  term_id
  label
  creator {
    id
    label
  }
}

query GetTriple($id: String!) {
  triple(term_id: $id) {
    subject { ...AtomBasics }
    predicate { ...AtomBasics }
    object { ...AtomBasics }
  }
}

Benefits

1. DRY code: Define once, use everywhere
2. Easier maintenance: Update in one place
3. Consistent data: Same fields across queries
4. Better readability: Named, semantic units