Function graphql_handler

examples/graphql_example/api/src/lib.rs:19–21

(schema: State<AppSchema>, req: GraphQLRequest)

use dotenvy::dotenv;

async fn graphql_handler(schema: State<AppSchema>, req: GraphQLRequest) -> GraphQLResponse {
    schema.execute(req.into_inner()).await.into()
}

async fn graphql_playground() -> impl IntoResponse {
    Html(playground_source(GraphQLPlaygroundConfig::new(