Mutations Development Tutorials, Guides & Insights

• Schema Definition (typeDefs): This defines the types and operations available in the API. We define a Book type and operations to query all books and add a new book.
• Resolvers: These functions handle the logic for fetching and manipulating data. The Query resolver fetches the list of books, and the Mutation resolver adds a new book to the list.
• Apollo Server: Integrates with Express to handle incoming requests and execute GraphQL queries.

Run the server using Node.js:

Open a browser and go to http://localhost:4000/graphql. You'll see the Apollo GraphQL Playground, where you can test your queries and mutations.

• Fetch Books