[Solved] Examine this GraphQL query:{ user { id } }Why does this query cause under-fetching if the client also needs the user's name and email? | GraphQL

GraphQL - Basics and Philosophy

Examine this GraphQL query:

{ user { id } }

Why does this query cause under-fetching if the client also needs the user's name and email?

AIt requests too many fields causing over-fetching

BIt does not request the user's name and email fields

CThe query syntax is invalid

DIt uses fragments incorrectly

Step-by-Step Solution

Solution:

Step 1: Understand under-fetching
Under-fetching occurs when the query misses fields the client needs.
Step 2: Analyze the query
The query only requests 'id' but the client also needs 'name' and 'email'. Hence, it under-fetches.
Step 3: Evaluate options
It does not request the user's name and email fields correctly identifies the missing fields. Options B, C, and D are incorrect because the query is valid and does not over-fetch or misuse fragments.
Final Answer:
It does not request the user's name and email fields -> Option B
Quick Check:
Missing needed fields? Under-fetching! [OK]

Quick Trick: Missing required fields causes under-fetching [OK]

Common Mistakes:

Master "Basics and Philosophy" in GraphQL

9 interactive learning modes - each teaches the same concept differently

More GraphQL Quizzes

Examine this GraphQL query: