GraphQL - Type Relationships
Which GraphQL schema snippet correctly models a many-to-many relationship between
Teacher and Classroom?Which GraphQL schema snippet correctly models a many-to-many relationship between Teacher and Classroom?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify many-to-many relationship
Many-to-many means each Teacher can have multiple Classrooms and each Classroom can have multiple Teachers.Step 2: Use list types on both sides
GraphQL lists (e.g., [Classroom!]!) represent multiple related objects.Final Answer:
type Teacher { classrooms: [Classroom!]! } type Classroom { teachers: [Teacher!]! } correctly uses lists on both sides.Quick Check:
Both types have lists of the other type [OK]
Quick Trick: Use lists on both sides for many-to-many [OK]
Common Mistakes:
- Using single object instead of list for many-to-many
- Omitting non-null or list syntax
- Confusing one-to-many with many-to-many
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