cargo codegen-for-async-graphql --schema {path_to_schema} --output {path_to_output}
# cargo codegen-for-async-graphql --schema ./schema.graphql --output src/models
mod models;
use async_graphql::*;
use models::{
Mutation, Query,
};
let data_source = DataSource {};
let schema = Schema::build(Query {}, Mutation {}, EmptySubscription)
.register_type::<User>()
.data(data_source)
.finish();
let res = schema.execute(query).await;
let json = serde_json::to_string_pretty(&async_graphql::http::GQLResponse(res));
json.unwrap()