What is GraphQL and how can I use it for data fetching?

What is GraphQL and how can I use it for data fetching?

GraphQL is a query language for APIs that allows clients to request only the data they need. It provides a more efficient and flexible alternative to REST.

What are the advantages of using GraphQL over REST?

Some advantages include reduced data over-fetching, better performance, and the ability to aggregate data from multiple sources in a single request.

Can you give me an example of a GraphQL query?

Sure! A simple query to fetch a user's name and email might look like this: query { user { name email } }.

How do I set up a GraphQL server?

You can set up a GraphQL server using libraries like Apollo Server or Express-GraphQL in Node.js. It involves defining your schema and resolvers.