[Solved] Identify the error in this mutation:mutation CreatePost($post: PostInput!) { createPost(post: $post) { id content } }Assuming the server expects the input argument to be named input, not post. | GraphQL

GraphQL - Mutations

Identify the error in this mutation:

mutation CreatePost($post: PostInput!) {
  createPost(post: $post) {
    id
    content
  }
}

Assuming the server expects the input argument to be named input, not post.

AThe mutation keyword should be <code>query</code>

BThe variable <code>$post</code> should be <code>$input</code>

CThe argument name <code>post</code> should be <code>input</code>

DThe return fields <code>id</code> and <code>content</code> are invalid

Step-by-Step Solution

Solution:

Step 1: Check argument name in mutation call
The mutation calls createPost(post: $post), but server expects input argument.
Step 2: Correct argument name
Changing post to input matches server expectation and fixes error.
Final Answer:
The argument name post should be input -> Option C
Quick Check:
Argument names must match server schema [OK]

Quick Trick: Match argument names exactly as server expects [OK]

Common Mistakes:

Master "Mutations" in GraphQL

9 interactive learning modes - each teaches the same concept differently

More GraphQL Quizzes

Identify the error in this mutation: