Refresh server state with Next.js 13 and GraphQL

Next.js 13 introduces a new feature that allows developers to refresh the server state using GraphQL. This means that applications can now efficiently maintain their server state without having to rely on traditional approaches like REST APIs or other state management solutions.

GraphQL is a query language for APIs that allows clients to request only the data they need. With Next.js 13, developers can use the new useApollo hook to easily execute GraphQL queries and mutations on the server, and update the server state in real-time. This makes it easier to build web applications with complex data requirements and real-time updates.

To use this feature, developers need to first set up an Apollo client in their Next.js application. They can then use the useApollo hook to execute GraphQL queries and mutations and update the server state based on the responses.

Here’s an example of how to refresh the server state with Next.js 13 and GraphQL:

        
import { useApollo } from 'next-apollo'
import gql from 'graphql-tag'

const GET_USER = gql`
  query GetUser($id: ID!) {
    user(id: $id) {
      id
      name
      email
    }
  }
`

export default function UserProfile({ userId }) {
  const { data, loading, error } = useApollo(GET_USER, {
    variables: { id: userId }
  })

  if (loading) {
    return 
Loading...
  }

  if (error) {
    return 
Error: {error.message}
  }

  return (
    

      
{data.user.name}
      
Email: {data.user.email}
    
  )
}
        
      

In this example, the useApollo hook is used to execute a GraphQL query to fetch user data based on the userId prop. The server state is automatically updated when the data is fetched, allowing for real-time updates to the user interface.

With the new features in Next.js 13 and GraphQL, developers can now build web applications that are more efficient, scalable, and responsive. By leveraging the power of GraphQL and the server-side rendering capabilities of Next.js, developers can create seamless user experiences that are constantly updated and always reflect the latest server state.