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Add GET request support for async-graphql-actix-web

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This commit is contained in:
Sunli 2020-06-03 17:25:10 +08:00
parent 96f7d38c8a
commit e7eb9cca7f
1 changed files with 41 additions and 26 deletions
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67
async-graphql-actix-web/src/lib.rs
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@ -17,6 +17,7 @@ use async_graphql::{
use futures::channel::mpsc;
use futures::future::Ready;
use futures::{Future, SinkExt, StreamExt, TryFutureExt};
use http::Method;
use std::convert::Infallible;
use std::pin::Pin;
pub use subscription::WSSubscription;
@ -41,36 +42,50 @@ impl FromRequest for GQLRequest {
fn from_request(req: &HttpRequest, payload: &mut Payload<PayloadStream>) -> Self::Future {
let config = req.app_data::<Self::Config>().cloned().unwrap_or_default();
let content_type = req
.headers()
.get(http::header::CONTENT_TYPE)
.and_then(|value| value.to_str().ok())
.map(|value| value.to_string());
let (mut tx, rx) = mpsc::channel(16);
if req.method() == Method::GET {
let res = web::Query::<async_graphql::http::GQLRequest>::from_query(req.query_string());
Box::pin(async move {
let gql_request = res?;
gql_request
.into_inner()
.into_query_builder_opts(&config)
.map_ok(GQLRequest)
.map_err(actix_web::error::ErrorBadRequest)
.await
})
} else {
let content_type = req
.headers()
.get(http::header::CONTENT_TYPE)
.and_then(|value| value.to_str().ok())
.map(|value| value.to_string());
// Because Payload is !Send, so forward it to mpsc::Sender
let mut payload = web::Payload(payload.take());
actix_rt::spawn(async move {
while let Some(item) = payload.next().await {
if tx.send(item).await.is_err() {
return;
}
}
});
let (mut tx, rx) = mpsc::channel(16);
Box::pin(async move {
(content_type, StreamBody::new(rx))
.into_query_builder_opts(&config)
.map_ok(GQLRequest)
.map_err(|err| match err {
ParseRequestError::PayloadTooLarge => {
actix_web::error::ErrorPayloadTooLarge(err)
// Because Payload is !Send, so forward it to mpsc::Sender
let mut payload = web::Payload(payload.take());
actix_rt::spawn(async move {
while let Some(item) = payload.next().await {
if tx.send(item).await.is_err() {
return;
}
_ => actix_web::error::ErrorBadRequest(err),
})
.await
})
}
});
Box::pin(async move {
(content_type, StreamBody::new(rx))
.into_query_builder_opts(&config)
.map_ok(GQLRequest)
.map_err(|err| match err {
ParseRequestError::PayloadTooLarge => {
actix_web::error::ErrorPayloadTooLarge(err)
}
_ => actix_web::error::ErrorBadRequest(err),
})
.await
})
}
}
}