[Solved] Identify the error in the following resolver function signature:const resolver = (args, parent, context) => { return parent.id; } | GraphQL

GraphQL - Resolvers

Identify the error in the following resolver function signature:

const resolver = (args, parent, context) => { return parent.id; }

AThe function should not return parent.id

BMissing the info argument

CArguments order is incorrect; parent should come before args

DArrow function cannot be used for resolvers

Step-by-Step Solution

Solution:

Step 1: Recall correct resolver argument order
The correct order is (parent, args, context, info). Here, args comes before parent, which is wrong.
Step 2: Check other options
Info argument is optional, arrow functions are valid, and returning parent.id is valid if parent exists.
Final Answer:
Arguments order is incorrect; parent should come before args -> Option C
Quick Check:
Correct order = parent, args, context [OK]

Quick Trick: Always put parent first, then args in resolver signature [OK]

Common Mistakes:

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