Add docs for Rocket integration
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@ -1,6 +1,6 @@
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[package]
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name = "async-graphql-rocket"
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version = "1.17.18"
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version = "1.17.21"
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authors = ["Daniel Wiesenberg <daniel@simplificAR.io>"]
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edition = "2018"
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description = "async-graphql for Rocket.rs"
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@ -13,10 +13,9 @@ keywords = ["futures", "async", "graphql", "rocket"]
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categories = ["network-programming", "asynchronous"]
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[dependencies]
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async-graphql = { path = "..", version = "1.17.18" }
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rocket = { git = "https://github.com/SergioBenitez/Rocket/", default-features = false }
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async-graphql = { path = "..", version = "1.17.21" }
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rocket = { git = "https://github.com/SergioBenitez/Rocket/", rev = "dc2c6ec", default-features = false } #TODO: Change to Cargo crate, when Rocket 0.5.0 is released
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log = "0.4.11"
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yansi = "0.5.0"
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tokio-util = { version = "0.3.1", default-features = false, features = ["compat"] }
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serde_json = "1.0.57"
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serde_urlencoded = "0.6.1"
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@ -20,11 +20,63 @@ use tokio_util::compat::Tokio02AsyncReadCompatExt;
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use yansi::Paint;
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/// Contains the fairing functions, to attach GraphQL with the desired `Schema`, and optionally
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/// `QueryBuilderOpts`, to Rocket.
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///
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/// # Examples
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/// **[Full Example](<https://github.com/async-graphql/examples/blob/master/rocket/starwars/src/main.rs>)**
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///
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/// ```rust,no_run
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///
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/// use async_graphql::*;
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/// use async_graphql_rocket::{GQLRequest, GraphQL, GQLResponse};
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/// use rocket::{response::content, routes, State, http::Status};
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///
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/// type ExampleSchema = Schema<QueryRoot, EmptyMutation, EmptySubscription>;
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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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/// #[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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/// #[rocket::post("/?<query..>")]
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/// async fn graphql_query(schema: State<'_, ExampleSchema>, query: GQLRequest) -> Result<GQLResponse, Status> {
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/// query.execute(&schema)
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/// .await
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/// }
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///
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/// #[rocket::post("/", data = "<request>", format = "application/json")]
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/// async fn graphql_request(schema: State<'_, ExampleSchema>, request: GQLRequest) -> Result<GQLResponse, Status> {
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/// request.execute(&schema)
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/// .await
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/// }
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///
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/// #[rocket::launch]
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/// fn rocket() -> rocket::Rocket {
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/// let schema = Schema::new(QueryRoot, EmptyMutation, EmptySubscription);
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/// rocket::ignite()
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/// .attach(GraphQL::fairing(schema))
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/// .mount("/", routes![graphql_query, graphql_request])
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/// }
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/// ```
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pub struct GraphQL;
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impl GraphQL
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{
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/// Fairing with default `QueryBuilderOpts`. You just need to pass in your `Schema` and then can
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/// attach the `Fairing` to Rocket.
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///
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/// # Examples
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///
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/// ```rust,no_run
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/// rocket::ignite()
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/// .attach(GraphQL::fairing(schema))
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/// .mount("/", routes![graphql_query, graphql_request])
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/// ```
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pub fn fairing<Q, M, S>(schema: Schema<Q, M, S>) -> impl Fairing
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where
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Q: ObjectType + Send + Sync + 'static,
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@ -34,6 +86,17 @@ impl GraphQL
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GraphQL::attach(schema, Default::default())
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}
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/// Fairing to which you need to pass `QueryBuilderOpts` and your `Schema`. Then you can
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/// attach the `Fairing` to Rocket.
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///
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/// # Examples
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///
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/// ```rust,no_run
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/// let opts: IntoQueryBuilderOpts = Default::default();
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/// rocket::ignite()
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/// .attach(GraphQL::fairing_with_opts(schema, opts))
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/// .mount("/", routes![graphql_query, graphql_request])
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/// ```
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pub fn fairing_with_opts<Q, M, S>(schema: Schema<Q, M, S>, opts: IntoQueryBuilderOpts) -> impl Fairing
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where
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Q: ObjectType + Send + Sync + 'static,
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@ -60,9 +123,29 @@ impl GraphQL
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}
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}
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/// Implements `FromQuery` and `FromData`, so that it can be used as parameter in a
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/// Rocket route.
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///
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/// # Examples
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///
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/// ```rust,no_run
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/// #[rocket::post("/?<query..>")]
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/// async fn graphql_query(schema: State<'_, ExampleSchema>, query: GQLRequest) -> Result<GQLResponse, Status> {
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/// query.execute(&schema)
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/// .await
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/// }
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///
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/// #[rocket::post("/", data = "<request>", format = "application/json")]
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/// async fn graphql_request(schema: State<'_, ExampleSchema>, request: GQLRequest) -> Result<GQLResponse, Status> {
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/// request.execute(&schema)
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/// .await
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/// }
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/// ```
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pub struct GQLRequest(pub QueryBuilder);
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impl GQLRequest {
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/// Mimics `async_graphqlquery::QueryBuilder.execute()`.
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/// Executes the query, always return a complete result.
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pub async fn execute<Q, M, S>(self, schema: &Schema<Q, M, S>) -> Result<GQLResponse, Status>
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where
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Q: ObjectType + Send + Sync + 'static,
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@ -92,7 +175,7 @@ impl<'q> FromQuery<'q> for GQLRequest {
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match key.as_str() {
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"query" => {
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if query.is_some() {
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return Err(r#"Multiple parameters named \"query\" found. Only one parameter by that name is allowed."#.to_string());
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return Err(r#"Multiple parameters named "query" found. Only one parameter by that name is allowed."#.to_string());
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} else {
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query = value.url_decode()
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.map_err(|e| e.to_string())?
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@ -101,7 +184,7 @@ impl<'q> FromQuery<'q> for GQLRequest {
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}
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"operation_name" => {
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if operation_name.is_some() {
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return Err(r#"Multiple parameters named \"operation_name\" found. Only one parameter by that name is allowed."#.to_string());
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return Err(r#"Multiple parameters named "operation_name" found. Only one parameter by that name is allowed."#.to_string());
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} else {
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operation_name = value.url_decode()
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.map_err(|e| e.to_string())?
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@ -110,7 +193,7 @@ impl<'q> FromQuery<'q> for GQLRequest {
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}
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"variables" => {
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if variables.is_some() {
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return Err(r#"Multiple parameters named \"variables\" found. Only one parameter by that name is allowed."#.to_string());
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return Err(r#"Multiple parameters named "variables" found. Only one parameter by that name is allowed."#.to_string());
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} else {
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let decoded= value.url_decode()
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.map_err(|e| e.to_string())?;
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@ -122,7 +205,7 @@ impl<'q> FromQuery<'q> for GQLRequest {
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}
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}
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_ => {
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return Err(format!(r#"Extra parameter named \"{}\" found. Extra parameters are not allowed."#, key));
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return Err(format!(r#"Extra parameter named "{}" found. Extra parameters are not allowed."#, key));
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}
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}
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}
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@ -156,7 +239,8 @@ impl FromData for GQLRequest {
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Outcome::Forward(()) => unreachable!(),
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};
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let stream = data.open(100.kibibytes());
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let limit = req.limits().get("graphql");
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let stream = data.open(limit.unwrap_or_else(|| 128.kibibytes()));
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let builder = (req.headers().get_one("Content-Type"), stream.compat())
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.into_query_builder_opts(&opts)
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.await;
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@ -168,6 +252,9 @@ impl FromData for GQLRequest {
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}
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}
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/// Wrapper around `async-graphql::query::QueryResponse` for implementing the trait
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/// `rocket::response::responder::Responder`, so that `GQLResponse` can directly be returned
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/// from a Rocket Route function.
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pub struct GQLResponse(pub QueryResponse);
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impl<'r> Responder<'r, 'static> for GQLResponse {
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