Why is it needed?

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. It provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need, and makes it easier to evolve APIs over time. Unlike REST APIs that require multiple endpoints, GraphQL allows you to fetch all needed data in a single request, reducing over-fetching and under-fetching of data.

When to use this tool?

• Format GraphQL Queries: Make your queries readable and properly indented for better understanding
• Validate Syntax: Check if your GraphQL query has correct syntax before sending to the server
• Minify for Production: Reduce query size by removing unnecessary whitespace for network optimization
• Debug Complex Queries: Format nested queries and mutations to identify structural issues
• Learn GraphQL: Study well-formatted examples to understand GraphQL syntax better

Real-world Examples

query {
  user(id: 1) {
    id
    name
    email
    posts {
      id
      title
    }
  }
}

mutation CreatePost($input: CreatePostInput!) {
  createPost(input: $input) {
    id
    title
    content
    createdAt
    author {
      id
      name
    }
  }
}

fragment UserInfo on User {
  id
  name
  email
}

query GetUsers {
  users {
    ...UserInfo
    posts {
      id
      title
    }
  }
}

Common Mistakes to Avoid

GraphQL vs REST API