Why tooling improves developer experience in GraphQL - See It in Action

Why Tooling Improves Developer Experience

📖 Scenario: You are working on a small GraphQL API for a bookstore. You want to understand how using tools can make your work easier and faster.

🎯 Goal: Build a simple GraphQL schema and add tooling configuration to improve your developer experience.

📋 What You'll Learn

Create a GraphQL schema with a Book type and a Query type

Add a configuration variable to enable schema validation

Write a query to fetch book titles

Add a final configuration to enable auto-completion in your GraphQL tool

💡 Why This Matters

🌍 Real World

GraphQL APIs are widely used to fetch and manipulate data efficiently. Tooling helps developers write correct and fast queries.

💼 Career

Understanding how to set up schemas and use tooling is essential for backend and frontend developers working with GraphQL.

1

Create the GraphQL schema

Create a GraphQL schema with a Book type that has id (ID), title (String), and author (String). Also create a Query type with a books field that returns a list of Book.

GraphQL

# Define the Book type and Query type in the schema
# Your code here

Need a hint?

Use type keyword to define types and specify fields with their types.

2

Add schema validation configuration

Add a configuration variable called enableSchemaValidation and set it to true to enable schema validation in your GraphQL setup.

GraphQL

type Book {
  id: ID!
  title: String!
  author: String!
}

type Query {
  books: [Book!]!
}

# Add the enableSchemaValidation variable below
# Your code here

Need a hint?

Use const to declare the variable and assign true.

3

Write a query to fetch book titles

Write a GraphQL query called GET_BOOK_TITLES that fetches the title field from the books query.

GraphQL

type Book {
  id: ID!
  title: String!
  author: String!
}

type Query {
  books: [Book!]!
}

const enableSchemaValidation = true;

# Write the GET_BOOK_TITLES query below
# Your code here

Need a hint?

Use a template string to write the query and include the title field inside books.

4

Enable auto-completion tooling

Add a configuration variable called enableAutoCompletion and set it to true to enable auto-completion support in your GraphQL development tool.

GraphQL

type Book {
  id: ID!
  title: String!
  author: String!
}

type Query {
  books: [Book!]!
}

const enableSchemaValidation = true;

const GET_BOOK_TITLES = `
  query {
    books {
      title
    }
  }
`;

# Add enableAutoCompletion variable below
# Your code here

Need a hint?

Declare the variable with const and assign true.