Given this resolver snippet, what will info.fieldNodes[0].selectionSet.selections.map(f => f.name.value) return if the client queries { user { id name } }?

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GraphQL - Resolvers

Given this resolver snippet, what will info.fieldNodes[0].selectionSet.selections.map(f => f.name.value) return if the client queries { user { id name } }?

A["id", "name"]

B["user"]

C["id"]

DAn empty array []

Step-by-Step Solution

Solution:

Step 1: Understand the query structure
The client requests the fields id and name inside user.
Step 2: Analyze the info.fieldNodes access
info.fieldNodes[0].selectionSet.selections lists the fields requested inside user, which are id and name.
Final Answer:
["id", "name"] -> Option A
Quick Check:
info.fieldNodes selections = requested fields [OK]

Quick Trick: info.fieldNodes lists requested fields inside current resolver [OK]

Common Mistakes:

Returning parent field name instead of subfields
Confusing selectionSet with fieldNodes
Expecting only one field instead of all requested

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Given this resolver snippet, what will info.fieldNodes[0].selectionSet.selections.map(f => f.name.value) return if the client queries { user { id name } }?

Step 1: Understand the query structure

Step 2: Analyze the info.fieldNodes access

Final Answer:

Quick Check:

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