[Solved] Identify the error in this resolver function using the parent argument: const resolvers = { User: { posts(args) { return postsData.filter(post => post.userId === args.id); } } }; | GraphQL

GraphQL - Resolvers

Identify the error in this resolver function using the parent argument:

const resolvers = {
  User: {
    posts(args) {
      return postsData.filter(post => post.userId === args.id);
    }
  }
};

AThe resolver should not use <code>filter</code> on postsData.

BThe resolver is missing the <code>parent</code> argument as the first parameter.

CThe resolver should use <code>context</code> instead of <code>args</code>.

DThe resolver function name should be <code>Posts</code> with uppercase P.

Step-by-Step Solution

Solution:

Step 1: Check resolver function parameters
The resolver function must have parent as the first argument to access parent data.
Step 2: Identify misuse of args instead of parent
The code incorrectly uses args.id instead of parent.id to filter posts.
Final Answer:
The resolver is missing the parent argument as the first parameter. -> Option B
Quick Check:
Parent argument must be first in resolver [OK]

Quick Trick: Always include parent as first resolver argument [OK]

Common Mistakes:

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