mirror of https://github.com/fafhrd91/actix-web
improve juniper example
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@ -15,3 +15,4 @@ serde_json = "1.0"
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serde_derive = "1.0"
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juniper = "0.9.2"
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lazy_static = "1.0"
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@ -1,15 +1,20 @@
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//! Actix web juniper example
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//!
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//! Juniper is a graphql framework implemetation for rust
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//! A simple example integrating juniper in actix-web
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extern crate serde;
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extern crate serde_json;
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#[macro_use]
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extern crate serde_derive;
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#[macro_use]
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extern crate lazy_static;
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#[macro_use]
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extern crate juniper;
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extern crate futures;
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extern crate actix;
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extern crate actix_web;
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extern crate env_logger;
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use actix::*;
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use actix_web::*;
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use juniper::http::graphiql::graphiql_source;
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use juniper::http::GraphQLRequest;
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@ -21,8 +26,35 @@ mod schema;
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use schema::Schema;
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use schema::create_schema;
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lazy_static! {
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static ref SCHEMA: Schema = create_schema();
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}
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struct State {
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schema: Schema,
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executor: Addr<Syn, GraphQLExecutor>,
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}
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#[derive(Serialize, Deserialize)]
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pub struct GraphQLData(GraphQLRequest);
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impl Message for GraphQLData {
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type Result = Result<String, Error>;
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}
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pub struct GraphQLExecutor;
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impl Actor for GraphQLExecutor {
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type Context = SyncContext<Self>;
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}
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impl Handler<GraphQLData> for GraphQLExecutor {
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type Result = Result<String, Error>;
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fn handle(&mut self, msg: GraphQLData, _: &mut Self::Context) -> Self::Result {
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let res = msg.0.execute(&SCHEMA, &());
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let res_text = serde_json::to_string(&res)?;
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Ok(res_text)
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}
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}
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fn graphiql(_req: HttpRequest<State>) -> Result<HttpResponse> {
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@ -33,11 +65,18 @@ fn graphiql(_req: HttpRequest<State>) -> Result<HttpResponse> {
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}
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fn graphql(req: HttpRequest<State>) -> Box<Future<Item=HttpResponse, Error=Error>> {
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req.json()
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.from_err()
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.and_then(move |val: GraphQLRequest| {
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let response = val.execute(&req.state().schema, &());
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Ok(httpcodes::HTTPOk.build().json(response)?)
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.and_then(move |val: GraphQLData| {
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req.state().executor.send(val)
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.from_err()
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.and_then(|res| {
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match res {
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Ok(user) => Ok(httpcodes::HTTPOk.build().body(user)?),
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Err(_) => Ok(httpcodes::HTTPInternalServerError.into())
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}
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})
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})
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.responder()
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}
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@ -47,9 +86,13 @@ fn main() {
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let _ = env_logger::init();
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let sys = actix::System::new("juniper-example");
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let addr = SyncArbiter::start(3, || {
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GraphQLExecutor{}
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});
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// Start http server
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let _addr = HttpServer::new(move || {
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Application::with_state(State{schema: create_schema() })
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Application::with_state(State{executor: addr.clone()})
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// enable logger
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.middleware(middleware::Logger::default())
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.resource("/graphql", |r| r.method(Method::POST).a(graphql))
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