Recall & Review
beginner
What are field-level permissions in GraphQL?
Field-level permissions control access to specific fields in a GraphQL schema, allowing or denying users from seeing or modifying certain data fields.
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beginner
Why are field-level permissions important in GraphQL APIs?
They protect sensitive data by restricting access to certain fields based on user roles or conditions, ensuring users only see data they are allowed to access.
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intermediate
How can you implement field-level permissions in GraphQL?
By adding authorization logic in resolvers or using middleware that checks user roles before returning field data.
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intermediate
What happens if a user tries to access a field they don't have permission for?
The field can return null, an error, or be omitted from the response depending on the implementation, preventing unauthorized data exposure.
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intermediate
Give an example of a simple field-level permission check in a GraphQL resolver.
In a resolver, check the user's role before returning the field data, e.g., if (user.role !== 'admin') return null; else return sensitiveData;
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What does field-level permission control in GraphQL?
✗ Incorrect
Field-level permissions control access to specific fields, not the entire API or other unrelated settings.
Where is field-level permission logic usually implemented in GraphQL?
✗ Incorrect
Resolvers or middleware are the places where access checks happen before returning data.
What is a common response when a user lacks permission for a field?
✗ Incorrect
Returning null or an error prevents unauthorized data exposure safely.
Why should field-level permissions be used instead of only query-level permissions?
✗ Incorrect
Field-level permissions add finer control to protect sensitive data inside queries.
Which role might typically have access to all fields in a GraphQL API?
✗ Incorrect
Admins usually have full access, while other roles have limited permissions.
Explain what field-level permissions are and why they matter in GraphQL APIs.
Think about controlling access to parts of data, not just whole queries.
You got /3 concepts.
Describe how you would implement a simple field-level permission check in a GraphQL resolver.
Focus on the resolver function and conditional logic.
You got /3 concepts.