GraphQL - Type Relationships
Which of the following is the correct syntax to define a one-to-many relationship in a GraphQL type?
Which of the following is the correct syntax to define a one-to-many relationship in a GraphQL type?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify how to represent multiple related items in GraphQL
Square brackets [] indicate a list of items in GraphQL types.Step 2: Match this to the options
Only type Author { books: [Book] } uses [Book] to show many books related to an author.Final Answer:
type Author { books: [Book] } -> Option CQuick Check:
List syntax uses brackets = D [OK]
Quick Trick: Use square brackets [] for lists in GraphQL types [OK]
Common Mistakes:
- Using Book without brackets for multiple items
- Using Book! which means non-null single item
- Using Book[] which is invalid syntax in GraphQL
Master "Type Relationships" in GraphQL
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