[Solved] To optimize data fetching in a resolver, how can the info argument be used effectively? — Ans: By inspecting info.fieldNodes to determine requested fields and fetching only... | GraphQL

GraphQL - Resolvers

To optimize data fetching in a resolver, how can the info argument be used effectively?

ABy inspecting <code>info.fieldNodes</code> to determine requested fields and fetching only those

BBy using <code>info</code> to access user credentials for authorization

CBy modifying <code>info</code> to add extra fields to the query

DBy ignoring <code>info</code> and fetching all fields unconditionally

Step-by-Step Solution

Solution:

Step 1: Understand optimization goal
Fetching only requested fields reduces unnecessary data retrieval.
Step 2: Use info.fieldNodes
This contains the AST nodes representing requested fields, enabling selective fetching.
Step 3: Avoid incorrect uses
info is not for authorization or modifying queries.
Final Answer:
By inspecting info.fieldNodes to determine requested fields and fetching only those -> Option A
Quick Check:
Use info to read requested fields for efficient fetching [OK]

Quick Trick: Use info.fieldNodes to fetch only requested fields [OK]

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To optimize data fetching in a resolver, how can the info argument be used effectively?