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In GraphQL, what happens if you omit a resolver function for a field in your schema?

easy📝 Conceptual Q1 of 15
GraphQL - Resolvers
In GraphQL, what happens if you omit a resolver function for a field in your schema?
AGraphQL will return null for that field regardless of the data.
BThe query will fail with an error indicating a missing resolver.
CThe default resolver automatically fetches the field value from the parent object.
DThe server will generate a random value for the field.
Step-by-Step Solution
Solution:
  1. Step 1: Understand default resolver behavior

    GraphQL uses a default resolver that looks up the field name on the parent object if no custom resolver is provided.
  2. Step 2: Consider the effect of omitting a resolver

    Without a custom resolver, the default resolver returns the corresponding property value from the parent data.
  3. Final Answer:

    The default resolver automatically fetches the field value from the parent object. -> Option C
  4. Quick Check:

    Default resolver returns parent field value [OK]
Quick Trick: Default resolver returns parent field value [OK]
Common Mistakes:
  • Assuming missing resolver causes query failure
  • Believing GraphQL returns null by default
  • Thinking server generates random data

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