95 lines
2.9 KiB
Rust
95 lines
2.9 KiB
Rust
use async_graphql::http::MultipartOptions;
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use async_graphql::{BatchRequest, ObjectType, Request, Schema, SubscriptionType};
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use warp::reply::Response as WarpResponse;
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use warp::{Filter, Rejection, Reply};
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use crate::{graphql_batch_opts, GraphQLBadRequest, GraphQLBatchResponse};
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/// GraphQL request filter
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///
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/// It outputs a tuple containing the `async_graphql::Schema` and `async_graphql::Request`.
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///
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/// # Examples
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///
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/// *[Full Example](<https://github.com/async-graphql/examples/blob/master/warp/starwars/src/main.rs>)*
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///
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/// ```no_run
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///
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/// use async_graphql::*;
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/// use async_graphql_warp::*;
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/// use warp::Filter;
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/// use std::convert::Infallible;
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///
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/// struct QueryRoot;
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///
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/// #[Object]
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/// impl QueryRoot {
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/// async fn value(&self, ctx: &Context<'_>) -> i32 {
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/// unimplemented!()
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/// }
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/// }
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///
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/// type MySchema = Schema<QueryRoot, EmptyMutation, EmptySubscription>;
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///
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/// # tokio::runtime::Runtime::new().unwrap().block_on(async {
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/// let schema = Schema::new(QueryRoot, EmptyMutation, EmptySubscription);
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/// let filter = async_graphql_warp::graphql(schema)
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/// .and_then(|(schema, request): (MySchema, async_graphql::Request)| async move {
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/// Ok::<_, Infallible>(async_graphql_warp::GraphQLResponse::from(schema.execute(request).await))
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/// });
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/// warp::serve(filter).run(([0, 0, 0, 0], 8000)).await;
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/// # });
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/// ```
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pub fn graphql<Query, Mutation, Subscription>(
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schema: Schema<Query, Mutation, Subscription>,
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) -> impl Filter<
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Extract = ((
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Schema<Query, Mutation, Subscription>,
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async_graphql::Request,
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),),
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Error = Rejection,
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> + Clone
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where
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Query: ObjectType + 'static,
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Mutation: ObjectType + 'static,
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Subscription: SubscriptionType + 'static,
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{
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graphql_opts(schema, Default::default())
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}
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/// Similar to graphql, but you can set the options `async_graphql::MultipartOptions`.
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pub fn graphql_opts<Query, Mutation, Subscription>(
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schema: Schema<Query, Mutation, Subscription>,
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opts: MultipartOptions,
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) -> impl Filter<Extract = ((Schema<Query, Mutation, Subscription>, Request),), Error = Rejection> + Clone
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where
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Query: ObjectType + 'static,
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Mutation: ObjectType + 'static,
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Subscription: SubscriptionType + 'static,
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{
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graphql_batch_opts(schema, opts).and_then(|(schema, batch): (_, BatchRequest)| async move {
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<Result<_, Rejection>>::Ok((
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schema,
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batch
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.into_single()
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.map_err(|e| warp::reject::custom(GraphQLBadRequest(e)))?,
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))
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})
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}
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/// Reply for `async_graphql::Request`.
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#[derive(Debug)]
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pub struct GraphQLResponse(pub async_graphql::Response);
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impl From<async_graphql::Response> for GraphQLResponse {
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fn from(resp: async_graphql::Response) -> Self {
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GraphQLResponse(resp)
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}
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}
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impl Reply for GraphQLResponse {
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fn into_response(self) -> WarpResponse {
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GraphQLBatchResponse(self.0.into()).into_response()
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}
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}
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