[Solved] Identify the error in this mutation:mutation { addBook(title: "1984", author) { id } } — Ans: Missing value for author argument | GraphQL

GraphQL - Mutations

Identify the error in this mutation:

mutation { addBook(title: "1984", author) { id } }

AReturn fields are not specified

BMutation keyword is missing

CMissing value for author argument

DMutation name is incorrect

Step-by-Step Solution

Solution:

Step 1: Check argument syntax
Arguments must have values; author is given without a value.
Step 2: Confirm mutation structure
Mutation keyword is present, return fields specified as id, so no error there.
Final Answer:
Missing value for author argument -> Option C
Quick Check:
Arguments need values [OK]

Quick Trick: Every argument must have a value [OK]

Common Mistakes:

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