known-fragment-names

✅ The "extends": "plugin:@graphql-eslint/operations-recommended" property in a configuration file enables this rule.

• Category: Operations
• Rule name: @graphql-eslint/known-fragment-names
• Requires GraphQL Schema: true ℹ️
• Requires GraphQL Operations: true ℹ️

A GraphQL document is only valid if all ...Fragment fragment spreads refer to fragments defined in the same document.

This rule is a wrapper around a graphql-js validation function.

Usage Examples

Incorrect

# eslint @graphql-eslint/known-fragment-names: 'error'
 
query {
  user {
    id
    ...UserFields # fragment not defined in the document
  }
}

Correct

# eslint @graphql-eslint/known-fragment-names: 'error'
 
fragment UserFields on User {
  firstName
  lastName
}
 
query {
  user {
    id
    ...UserFields
  }
}

Correct (UserFields fragment located in a separate file)

# eslint @graphql-eslint/known-fragment-names: 'error'
 
# user.gql
query {
  user {
    id
    ...UserFields
  }
}
 
# user-fields.gql
fragment UserFields on User {
  id
}

Resources

• Rule source 
• Test source