[Solved] Find the error in this mutation:mutation UpdateProfile($profile: ProfileInput!) { updateProfile(profile: $profile) { id name } } | GraphQL

GraphQL - Mutations

Find the error in this mutation:

mutation UpdateProfile($profile: ProfileInput!) {
  updateProfile(profile: $profile) {
    id
    name
  }
}

AThe variable declaration is missing a colon between $profile and ProfileInput!

BThe input argument should be named 'input' instead of 'profile'

CThe mutation name should be lowercase

DThe selection set cannot include 'id' and 'name'

Step-by-Step Solution

Solution:

Step 1: Review variable declaration
The variable declaration $profile: ProfileInput! is correct with colon and type.
Step 2: Check mutation name casing
Mutation names can be PascalCase or camelCase; casing is not an error.
Step 3: Validate input argument name
The argument name 'profile' does not match the expected 'input' argument name in the mutation schema, causing an error.
Step 4: Analyze selection set fields
The selection set fields 'id' and 'name' are valid if they exist on the return type.
Final Answer:
The input argument should be named 'input' instead of 'profile' -> Option B
Quick Check:
Input argument names must match schema expectations. [OK]

Quick Trick: Input argument names must match schema argument names [OK]

Common Mistakes:

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