[Solved] Consider this resolver snippet:const resolver = (parent, args, context) => { if (!context.user) return null; return context.db.getPostsByUser(context.user.id); }What happens if context.user is null? | GraphQL

GraphQL - Resolvers

Consider this resolver snippet:

const resolver = (parent, args, context) => {
  if (!context.user) return null;
  return context.db.getPostsByUser(context.user.id);
}

What happens if context.user is null?

AThe resolver throws an error

BThe resolver returns null immediately

CThe resolver returns all posts

DThe resolver returns undefined

Step-by-Step Solution

Solution:

Step 1: Analyze the if condition checking context.user
If context.user is falsy (null), the resolver returns null immediately.
Step 2: Confirm no further code runs when user is null
The return statement stops execution, so no error or other return happens.
Final Answer:
The resolver returns null immediately -> Option B
Quick Check:
Null user check returns null [OK]

Quick Trick: Check context.user before accessing data [OK]

Common Mistakes:

Master "Resolvers" in GraphQL

9 interactive learning modes - each teaches the same concept differently

More GraphQL Quizzes

Consider this resolver snippet: