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What is the main role of a resolver in GraphQL?

easy📝 Conceptual Q11 of 15
GraphQL - Resolvers
What is the main role of a resolver in GraphQL?
ATo fetch or compute the data for a specific field in the schema
BTo define the structure of the GraphQL schema
CTo handle user authentication and authorization
DTo format the query string before execution
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of resolvers

    Resolvers are functions that run when a field in the schema is requested to provide the actual data.

  2. Step 2: Differentiate from schema definition

    The schema defines the shape of data, but resolvers connect those fields to real data sources or computations.

  3. Final Answer:

    To fetch or compute the data for a specific field in the schema -> Option A

  4. Quick Check:

    Resolvers fetch data = A [OK]
Quick Trick: Resolvers provide data for fields, not schema or auth [OK]
Common Mistakes:
  • Confusing resolvers with schema definitions
  • Thinking resolvers handle authentication
  • Believing resolvers format queries

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