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What is the main purpose of type definitions in GraphQL?

easy📝 Conceptual Q11 of 15
GraphQL - Schema Definition Language (SDL)
What is the main purpose of type definitions in GraphQL?
ATo describe the shape and types of data clients can request
BTo execute database queries directly
CTo style the user interface of a GraphQL client
DTo store data permanently in the server
Step-by-Step Solution
Solution:

  1. Step 1: Understand the role of type definitions

    Type definitions specify what data types exist and how data is structured in GraphQL.

  2. Step 2: Identify what clients use type definitions for

    Clients use type definitions to know what data they can ask for and how it will look.

  3. Final Answer:

    To describe the shape and types of data clients can request -> Option A

  4. Quick Check:

    Type definitions = Describe data shape [OK]
Quick Trick: Type definitions describe data structure, not execution or styling [OK]
Common Mistakes:
  • Confusing type definitions with query execution
  • Thinking type definitions style UI
  • Assuming type definitions store data

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