[Solved] Consider this mutation:mutation { updateProfile(id: "42", input: {email: "new@example.com"}) { id email } }If the user with id "42" does not exist, what will happen? | GraphQL

GraphQL - Mutations

Consider this mutation:

mutation { updateProfile(id: "42", input: {email: "new@example.com"}) { id email } }

If the user with id "42" does not exist, what will happen?

AThe mutation creates a new user with id "42"

BThe mutation silently ignores the request

CThe mutation returns null or an error depending on server setup

DThe mutation updates a random user

Step-by-Step Solution

Solution:

Step 1: Understand update behavior on missing records
Update mutations usually fail or return null if the target id does not exist.
Step 2: Recognize server-specific error handling
Some servers return errors, others return null; creation does not happen automatically.
Final Answer:
The mutation returns null or an error depending on server setup -> Option C
Quick Check:
Update missing id = error or null [OK]

Quick Trick: Update fails if id not found, no auto-creation [OK]

Common Mistakes:

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