2020-04-26 11:53:44 +00:00
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//! Async-graphql integration with Tide
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#![warn(missing_docs)]
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#![allow(clippy::type_complexity)]
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#![allow(clippy::needless_doctest_main)]
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2020-04-26 14:56:27 +00:00
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use async_graphql::http::GQLResponse;
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2020-04-26 11:53:44 +00:00
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use async_graphql::{
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IntoQueryBuilder, IntoQueryBuilderOpts, ObjectType, QueryBuilder, Schema, SubscriptionType,
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};
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2020-04-27 15:56:32 +00:00
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use tide::{http::headers, Request, Response, Status, StatusCode};
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2020-04-26 11:53:44 +00:00
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/// GraphQL request handler
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///
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///
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/// # Examples
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2020-04-28 07:41:31 +00:00
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/// *[Full Example](<https://github.com/async-graphql/examples/blob/master/tide/starwars/src/main.rs>)*
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2020-04-26 11:53:44 +00:00
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///
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/// ```no_run
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/// use async_graphql::*;
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/// use async_std::task;
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/// use tide::Request;
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///
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/// struct QueryRoot;
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/// #[Object]
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/// impl QueryRoot {
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/// #[field(desc = "Returns the sum of a and b")]
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/// async fn add(&self, a: i32, b: i32) -> i32 {
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/// a + b
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/// }
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/// }
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///
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/// fn main() -> std::result::Result<(), Box<dyn std::error::Error + Send + Sync>> {
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/// task::block_on(async {
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/// let mut app = tide::new();
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/// app.at("/").post(|req: Request<()>| async move {
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/// let schema = Schema::build(QueryRoot, EmptyMutation, EmptySubscription).finish();
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/// async_graphql_tide::graphql(req, schema, |query_builder| query_builder).await
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/// });
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/// app.listen("0.0.0.0:8000").await?;
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///
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/// Ok(())
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/// })
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/// }
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/// ```
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pub async fn graphql<Query, Mutation, Subscription, TideState, F>(
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req: Request<TideState>,
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schema: Schema<Query, Mutation, Subscription>,
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query_builder_configuration: F,
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) -> tide::Result<Response>
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where
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Query: ObjectType + Send + Sync + 'static,
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Mutation: ObjectType + Send + Sync + 'static,
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Subscription: SubscriptionType + Send + Sync + 'static,
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TideState: Send + Sync + 'static,
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F: Fn(QueryBuilder) -> QueryBuilder,
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{
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graphql_opts(req, schema, query_builder_configuration, Default::default()).await
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}
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/// Similar to graphql, but you can set the options `IntoQueryBuilderOpts`.
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pub async fn graphql_opts<Query, Mutation, Subscription, TideState, F>(
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2020-04-26 14:56:27 +00:00
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req: Request<TideState>,
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2020-04-26 11:53:44 +00:00
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schema: Schema<Query, Mutation, Subscription>,
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query_builder_configuration: F,
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opts: IntoQueryBuilderOpts,
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) -> tide::Result<Response>
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where
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Query: ObjectType + Send + Sync + 'static,
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Mutation: ObjectType + Send + Sync + 'static,
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Subscription: SubscriptionType + Send + Sync + 'static,
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TideState: Send + Sync + 'static,
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F: Fn(QueryBuilder) -> QueryBuilder,
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{
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2020-04-26 14:56:27 +00:00
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let content_type = req
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2020-04-27 15:56:32 +00:00
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.header(&headers::CONTENT_TYPE)
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2020-04-26 14:56:27 +00:00
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.and_then(|values| values.first().map(|value| value.to_string()));
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2020-04-26 11:53:44 +00:00
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2020-04-26 14:56:27 +00:00
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let mut query_builder = (content_type, req)
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2020-04-26 11:53:44 +00:00
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.into_query_builder_opts(&opts)
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.await
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2020-04-27 15:56:32 +00:00
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.status(StatusCode::BadRequest)?;
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2020-04-26 11:53:44 +00:00
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query_builder = query_builder_configuration(query_builder);
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let query_response = query_builder.execute(&schema).await;
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let gql_response = GQLResponse(query_response);
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let resp = Response::new(StatusCode::Ok).body_json(&gql_response)?;
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Ok(resp)
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}
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