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Identify the error in this mutation:

medium📝 Debug Q14 of 15
GraphQL - Mutations
Identify the error in this mutation:
mutation {
  addUser(name: "Bob")
  {
    id
    name
  }
}
AMutation keyword is incorrect
BMissing input argument object for addUser
CCurly braces are misplaced
DNo error, mutation is correct
Step-by-Step Solution
Solution:
  1. Step 1: Check mutation input format

    Mutations usually require input as an object, e.g., addUser(input: {name: "Bob"}).
  2. Step 2: Identify missing input argument

    The mutation lacks the input argument object, causing an error.
  3. Final Answer:

    Missing input argument object for addUser -> Option B
  4. Quick Check:

    Input argument missing = error [OK]
Quick Trick: Mutations need input objects for data changes [OK]
Common Mistakes:
  • Forgetting to wrap inputs in an object
  • Misplacing curly braces
  • Confusing mutation keyword

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