fragments-on-composite-type

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

• Category: Operations
• Rule name: @graphql-eslint/fragments-on-composite-type
• Requires GraphQL Schema: true ℹ️
• Requires GraphQL Operations: false ℹ️

Fragments use a type condition to determine if they apply, since fragments can only be spread into a composite type (object, interface, or union), the type condition must also be a composite type.

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

Resources

• Rule source 
• Test source