Query Batching with WPGraphQL
WPGraphQL allows clients to interact with WordPress via HTTP requests the
/graphql API endpoint,
or within the PHP context via execution of the
Many GraphQL Queries or Mutations can be executed in one API request or one page-load.
For example, if I were to use GraphQL to hydrate data for a shortcode I could have many shortcodes on my page and GraphQL would execute multiple times on that page.
Making many requests via the
/graphql API endpoint is similar. An array of requests can be
sent to the endpoint and an array of responses will be returned.
Screenshot showing multiple GraphQL queries in a single HTTP request, in the Postman API client
Smart GraphQL clients, such as Apollo Client, can take advantage of this feature to process multiple GraphQL requests in a single API call, making interactions with the server more efficient by reducing the number of round-trips needed.
If you use Apollo Client, you can read about configuring the batch HTTP link here.
You can read more about Query Batching here.