[Solved] You want to query a user by id and get their name and email. Which query correctly uses variables? — Ans: query getUser($id: ID!) { user(id: $id) { name email } } | GraphQL

GraphQL - Queries

You want to query a user by id and get their name and email. Which query correctly uses variables?

A{ user(id: $id) { name email } }

Bquery getUser(id) { user(id: id) { name email } }

Cquery { user(id: $id) { name email } }

Dquery getUser($id: ID!) { user(id: $id) { name email } }

Step-by-Step Solution

Solution:

Step 1: Understand variable declaration syntax
Variables are declared with $ and type in parentheses after query name.
Step 2: Check variable usage in query
query getUser($id: ID!) { user(id: $id) { name email } } correctly declares $id as ID! and uses it in the user field argument.
Final Answer:
query getUser($id: ID!) { user(id: $id) { name email } } -> Option D
Quick Check:
Variables declared and used with $ and type = query getUser($id: ID!) { user(id: $id) { name email } } [OK]

Quick Trick: Declare variables with $ and type after query name [OK]

Common Mistakes:

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You want to query a user by id and get their name and email. Which query correctly uses variables?