examples/juniper/src/main.rs

//! Actix web juniper example
//!
//! A simple example integrating juniper in actix-web
use std::io;
use std::sync::Arc;

#[macro_use]
extern crate juniper;

use actix_web::{middleware, web, App, Error, HttpResponse, HttpServer};
use juniper::http::graphiql::graphiql_source;
use juniper::http::GraphQLRequest;

mod schema;

use crate::schema::{create_schema, Schema};

fn graphiql() -> HttpResponse {
  let html = graphiql_source("http://127.0.0.1:8080/graphql");
  HttpResponse::Ok()
    .content_type("text/html; charset=utf-8")
    .body(html)
}

fn graphql(
  st: web::Data<Arc<Schema>>,
  data: web::Json<GraphQLRequest>,
) -> Result<HttpResponse, Error> {
  let res = data.execute(&st, &());
  let user = serde_json::to_string(&res)?;
  Ok(
    HttpResponse::Ok()
      .content_type("application/json")
      .body(user)
  )
}

fn main() -> io::Result<()> {
  std::env::set_var("RUST_LOG", "actix_web=info");
  env_logger::init();

  // Create Juniper schema
  let schema = std::sync::Arc::new(create_schema());

  // Start http server
  HttpServer::new(move || {
    App::new()
      .data(schema.clone())
      .wrap(middleware::Logger::default())
      .service(web::resource("/graphql").route(web::post().to_async(graphql)))
      .service(web::resource("/graphiql").route(web::get().to(graphiql)))
  })
  .bind("127.0.0.1:8080")?
  .run()
}