[Solved] You wrote this query in GraphQL Playground:query { user(id: 5) { name email } }But you get an error. What is the likely cause? | GraphQL

GraphQL - Basics and Philosophy

You wrote this query in GraphQL Playground:

query { user(id: 5) { name email } }

But you get an error. What is the likely cause?

AGraphQL Playground does not support arguments

BThe query keyword is missing

CField names must be uppercase

DThe id argument should be a string, so it needs quotes

Step-by-Step Solution

Solution:

Step 1: Check argument types in GraphQL
GraphQL requires string arguments to be in quotes. Here, id is likely a string but given without quotes.
Step 2: Verify other options
The query keyword is present, field names are case-sensitive but lowercase is valid, and Playground supports arguments. So only The id argument should be a string, so it needs quotes explains the error.
Final Answer:
The id argument should be a string, so it needs quotes -> Option D
Quick Check:
String args need quotes in GraphQL [OK]

Quick Trick: Put quotes around string arguments in queries [OK]

Common Mistakes:

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