2020-09-10 04:49:08 +00:00
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use crate::context::{Data, ResolveId};
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2020-06-13 14:14:47 +00:00
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use crate::extensions::{BoxExtension, ErrorLogger, Extension, Extensions};
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2020-03-04 06:24:44 +00:00
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use crate::model::__DirectiveLocation;
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2020-05-09 09:55:04 +00:00
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use crate::parser::parse_query;
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2020-09-22 18:59:48 +00:00
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use crate::parser::types::{
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DocumentOperations, FragmentDefinition, Name, OperationDefinition, OperationType,
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};
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2020-05-15 02:08:37 +00:00
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use crate::registry::{MetaDirective, MetaInputValue, Registry};
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2020-09-12 09:29:52 +00:00
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use crate::resolver_utils::{resolve_object, resolve_object_serial, ObjectType};
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2020-09-13 17:52:36 +00:00
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use crate::subscription::collect_subscription_streams;
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2020-03-03 11:15:18 +00:00
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use crate::types::QueryRoot;
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2020-05-22 03:58:49 +00:00
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use crate::validation::{check_rules, CheckResult, ValidationMode};
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2020-03-29 12:02:52 +00:00
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use crate::{
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2020-09-22 18:59:48 +00:00
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BatchRequest, BatchResponse, CacheControl, ContextBase, Error, Pos, Positioned, QueryEnv,
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QueryError, Request, Response, Result, SubscriptionType, Type, Variables, ID,
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2020-03-29 12:02:52 +00:00
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};
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2020-09-13 17:52:36 +00:00
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use futures::stream::{self, Stream, StreamExt};
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2020-05-16 02:05:48 +00:00
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use indexmap::map::IndexMap;
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2020-05-22 03:58:49 +00:00
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use itertools::Itertools;
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2020-04-06 05:49:39 +00:00
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use std::any::Any;
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2020-09-22 18:59:48 +00:00
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use std::collections::HashMap;
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2020-05-19 08:24:15 +00:00
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use std::ops::Deref;
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2020-03-29 12:02:52 +00:00
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use std::sync::atomic::AtomicUsize;
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use std::sync::Arc;
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2020-03-01 10:54:34 +00:00
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2020-03-29 12:02:52 +00:00
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/// Schema builder
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2020-05-19 08:24:15 +00:00
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pub struct SchemaBuilder<Query, Mutation, Subscription> {
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validation_mode: ValidationMode,
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query: QueryRoot<Query>,
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mutation: Mutation,
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subscription: Subscription,
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registry: Registry,
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data: Data,
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complexity: Option<usize>,
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depth: Option<usize>,
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extensions: Vec<Box<dyn Fn() -> BoxExtension + Send + Sync>>,
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2020-06-02 00:49:27 +00:00
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enable_federation: bool,
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2020-05-19 08:24:15 +00:00
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}
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2020-03-29 12:02:52 +00:00
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2020-03-19 09:20:12 +00:00
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impl<Query: ObjectType, Mutation: ObjectType, Subscription: SubscriptionType>
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2020-03-29 12:02:52 +00:00
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SchemaBuilder<Query, Mutation, Subscription>
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2020-03-17 09:26:59 +00:00
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{
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2020-09-06 05:38:31 +00:00
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/// Manually register a type in the schema.
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///
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/// You can use this function to register schema types that are not directly referenced.
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2020-04-21 12:47:48 +00:00
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pub fn register_type<T: Type>(mut self) -> Self {
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2020-05-19 08:24:15 +00:00
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T::create_type_info(&mut self.registry);
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2020-04-21 12:47:48 +00:00
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self
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}
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2020-09-06 05:38:31 +00:00
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/// Disable introspection queries.
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2020-03-29 12:02:52 +00:00
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pub fn disable_introspection(mut self) -> Self {
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2020-05-19 08:24:15 +00:00
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self.query.disable_introspection = true;
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2020-03-29 12:02:52 +00:00
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self
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}
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2020-09-06 05:38:31 +00:00
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/// Set the maximum complexity a query can have. By default there is no limit.
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2020-03-29 12:02:52 +00:00
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pub fn limit_complexity(mut self, complexity: usize) -> Self {
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2020-05-19 08:24:15 +00:00
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self.complexity = Some(complexity);
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2020-03-29 12:02:52 +00:00
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self
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}
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2020-09-06 05:38:31 +00:00
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/// Set the maximum depth a query can have. By default there is no limit.
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2020-03-29 12:02:52 +00:00
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pub fn limit_depth(mut self, depth: usize) -> Self {
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2020-05-19 08:24:15 +00:00
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self.depth = Some(depth);
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2020-03-29 12:02:52 +00:00
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self
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}
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2020-09-06 05:38:31 +00:00
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/// Add an extension to the schema.
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2020-03-29 12:02:52 +00:00
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pub fn extension<F: Fn() -> E + Send + Sync + 'static, E: Extension>(
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mut self,
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extension_factory: F,
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) -> Self {
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2020-05-19 08:24:15 +00:00
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self.extensions
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2020-03-29 12:02:52 +00:00
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.push(Box::new(move || Box::new(extension_factory())));
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self
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}
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2020-09-06 05:38:31 +00:00
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/// Add a global data that can be accessed in the `Schema`. You access it with `Context::data`.
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2020-03-29 12:02:52 +00:00
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pub fn data<D: Any + Send + Sync>(mut self, data: D) -> Self {
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2020-05-19 08:24:15 +00:00
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self.data.insert(data);
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2020-03-29 12:02:52 +00:00
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self
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}
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2020-04-06 11:57:21 +00:00
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/// Set the validation mode, default is `ValidationMode::Strict`.
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pub fn validation_mode(mut self, validation_mode: ValidationMode) -> Self {
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2020-05-19 08:24:15 +00:00
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self.validation_mode = validation_mode;
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2020-04-06 11:57:21 +00:00
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self
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}
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2020-06-02 00:49:27 +00:00
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/// Enable federation, which is automatically enabled if the Query has least one entity definition.
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pub fn enable_federation(mut self) -> Self {
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self.enable_federation = true;
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self
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}
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2020-03-29 12:02:52 +00:00
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/// Build schema.
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2020-06-02 00:49:27 +00:00
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pub fn finish(mut self) -> Schema<Query, Mutation, Subscription> {
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// federation
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if self.enable_federation || self.registry.has_entities() {
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self.registry.create_federation_types();
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}
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2020-05-19 08:24:15 +00:00
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Schema(Arc::new(SchemaInner {
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validation_mode: self.validation_mode,
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query: self.query,
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mutation: self.mutation,
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subscription: self.subscription,
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complexity: self.complexity,
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depth: self.depth,
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extensions: self.extensions,
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env: SchemaEnv(Arc::new(SchemaEnvInner {
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registry: self.registry,
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data: self.data,
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})),
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}))
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2020-03-29 12:02:52 +00:00
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}
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}
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2020-05-19 08:24:15 +00:00
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#[doc(hidden)]
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pub struct SchemaEnvInner {
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pub registry: Registry,
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pub data: Data,
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}
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#[doc(hidden)]
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#[derive(Clone)]
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pub struct SchemaEnv(Arc<SchemaEnvInner>);
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impl Deref for SchemaEnv {
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type Target = SchemaEnvInner;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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#[doc(hidden)]
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pub struct SchemaInner<Query, Mutation, Subscription> {
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pub(crate) validation_mode: ValidationMode,
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pub(crate) query: QueryRoot<Query>,
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pub(crate) mutation: Mutation,
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pub(crate) subscription: Subscription,
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pub(crate) complexity: Option<usize>,
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pub(crate) depth: Option<usize>,
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pub(crate) extensions: Vec<Box<dyn Fn() -> BoxExtension + Send + Sync>>,
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pub(crate) env: SchemaEnv,
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}
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2020-09-06 05:38:31 +00:00
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/// GraphQL schema.
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///
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/// Cloning a schema is cheap, so it can be easily shared.
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2020-05-19 08:24:15 +00:00
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pub struct Schema<Query, Mutation, Subscription>(Arc<SchemaInner<Query, Mutation, Subscription>>);
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2020-03-29 12:02:52 +00:00
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impl<Query, Mutation, Subscription> Clone for Schema<Query, Mutation, Subscription> {
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fn clone(&self) -> Self {
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Schema(self.0.clone())
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}
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}
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2020-08-28 06:19:35 +00:00
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impl<Query, Mutation, Subscription> Default for Schema<Query, Mutation, Subscription>
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where
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Query: Default + ObjectType + Send + Sync + 'static,
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Mutation: Default + ObjectType + Send + Sync + 'static,
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Subscription: Default + SubscriptionType + Send + Sync + 'static,
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{
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fn default() -> Self {
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Schema::new(
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Query::default(),
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Mutation::default(),
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Subscription::default(),
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)
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}
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}
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2020-09-12 09:29:52 +00:00
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impl<Query, Mutation, Subscription> Deref for Schema<Query, Mutation, Subscription> {
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2020-05-19 08:24:15 +00:00
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type Target = SchemaInner<Query, Mutation, Subscription>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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2020-03-29 12:02:52 +00:00
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impl<Query, Mutation, Subscription> Schema<Query, Mutation, Subscription>
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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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{
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/// Create a schema builder
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2020-03-09 10:05:52 +00:00
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///
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/// The root object for the query and Mutation needs to be specified.
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2020-03-19 09:20:12 +00:00
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/// If there is no mutation, you can use `EmptyMutation`.
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/// If there is no subscription, you can use `EmptySubscription`.
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2020-03-29 12:02:52 +00:00
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pub fn build(
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query: Query,
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mutation: Mutation,
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subscription: Subscription,
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) -> SchemaBuilder<Query, Mutation, Subscription> {
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2020-09-23 00:04:00 +00:00
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SchemaBuilder {
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validation_mode: ValidationMode::Strict,
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query: QueryRoot {
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inner: query,
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disable_introspection: false,
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},
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mutation,
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subscription,
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registry: Self::create_registry(),
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data: Default::default(),
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complexity: None,
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depth: None,
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extensions: Default::default(),
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enable_federation: false,
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}
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}
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2020-09-27 11:13:12 +00:00
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fn create_registry() -> Registry {
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2020-03-08 12:35:36 +00:00
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let mut registry = Registry {
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types: Default::default(),
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directives: Default::default(),
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implements: Default::default(),
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query_type: Query::type_name().to_string(),
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mutation_type: if Mutation::is_empty() {
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None
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} else {
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Some(Mutation::type_name().to_string())
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},
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2020-03-17 09:26:59 +00:00
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subscription_type: if Subscription::is_empty() {
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None
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} else {
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Some(Subscription::type_name().to_string())
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},
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2020-03-08 12:35:36 +00:00
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};
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2020-03-04 06:24:44 +00:00
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2020-05-15 02:08:37 +00:00
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registry.add_directive(MetaDirective {
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2020-03-04 06:24:44 +00:00
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name: "include",
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description: Some("Directs the executor to include this field or fragment only when the `if` argument is true."),
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2020-03-05 13:34:31 +00:00
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locations: vec![
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__DirectiveLocation::FIELD,
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__DirectiveLocation::FRAGMENT_SPREAD,
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__DirectiveLocation::INLINE_FRAGMENT
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],
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2020-03-08 12:35:36 +00:00
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args: {
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2020-05-16 02:05:48 +00:00
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let mut args = IndexMap::new();
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2020-05-15 02:08:37 +00:00
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args.insert("if", MetaInputValue {
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2020-03-08 12:35:36 +00:00
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name: "if",
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description: Some("Included when true."),
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ty: "Boolean!".to_string(),
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2020-03-21 01:32:13 +00:00
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default_value: None,
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2020-03-22 01:34:32 +00:00
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validator: None,
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2020-03-08 12:35:36 +00:00
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});
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args
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}
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2020-03-04 06:24:44 +00:00
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});
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2020-05-15 02:08:37 +00:00
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registry.add_directive(MetaDirective {
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2020-03-04 06:24:44 +00:00
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name: "skip",
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description: Some("Directs the executor to skip this field or fragment when the `if` argument is true."),
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2020-03-05 13:34:31 +00:00
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locations: vec![
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__DirectiveLocation::FIELD,
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__DirectiveLocation::FRAGMENT_SPREAD,
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__DirectiveLocation::INLINE_FRAGMENT
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],
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2020-03-08 12:35:36 +00:00
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args: {
|
2020-05-16 02:05:48 +00:00
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|
let mut args = IndexMap::new();
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2020-05-15 02:08:37 +00:00
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args.insert("if", MetaInputValue {
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2020-03-08 12:35:36 +00:00
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|
name: "if",
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description: Some("Skipped when true."),
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ty: "Boolean!".to_string(),
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2020-03-21 01:32:13 +00:00
|
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|
default_value: None,
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2020-03-22 01:34:32 +00:00
|
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|
validator: None,
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2020-03-08 12:35:36 +00:00
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});
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args
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|
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}
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2020-03-04 06:24:44 +00:00
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});
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|
2020-08-06 06:52:54 +00:00
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registry.add_directive(MetaDirective {
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name: "ifdef",
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description: Some("Directs the executor to query only when the field exists."),
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locations: vec![__DirectiveLocation::FIELD],
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args: Default::default(),
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});
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|
2020-03-04 06:24:44 +00:00
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|
|
// register scalars
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|
|
|
bool::create_type_info(&mut registry);
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|
|
|
i32::create_type_info(&mut registry);
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|
|
|
f32::create_type_info(&mut registry);
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|
|
|
String::create_type_info(&mut registry);
|
2020-05-19 08:24:15 +00:00
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|
|
ID::create_type_info(&mut registry);
|
2020-03-04 06:24:44 +00:00
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2020-03-08 12:35:36 +00:00
|
|
|
QueryRoot::<Query>::create_type_info(&mut registry);
|
2020-03-05 09:06:14 +00:00
|
|
|
if !Mutation::is_empty() {
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|
|
Mutation::create_type_info(&mut registry);
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|
|
|
}
|
2020-03-17 09:26:59 +00:00
|
|
|
if !Subscription::is_empty() {
|
|
|
|
Subscription::create_type_info(&mut registry);
|
|
|
|
}
|
2020-03-04 06:24:44 +00:00
|
|
|
|
2020-09-23 00:04:00 +00:00
|
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|
registry
|
2020-03-25 07:07:16 +00:00
|
|
|
}
|
|
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|
|
2020-03-29 12:02:52 +00:00
|
|
|
/// Create a schema
|
|
|
|
pub fn new(
|
|
|
|
query: Query,
|
|
|
|
mutation: Mutation,
|
|
|
|
subscription: Subscription,
|
|
|
|
) -> Schema<Query, Mutation, Subscription> {
|
|
|
|
Self::build(query, mutation, subscription).finish()
|
2020-03-05 00:39:56 +00:00
|
|
|
}
|
|
|
|
|
2020-09-23 00:04:00 +00:00
|
|
|
/// Returns SDL(Schema Definition Language) of this schema.
|
|
|
|
pub fn sdl() -> String {
|
|
|
|
Self::create_registry().export_sdl(false)
|
|
|
|
}
|
|
|
|
|
2020-09-22 18:59:48 +00:00
|
|
|
// TODO: Remove the allow
|
|
|
|
#[allow(clippy::type_complexity)]
|
2020-09-11 07:54:56 +00:00
|
|
|
fn prepare_request(
|
2020-05-22 03:58:49 +00:00
|
|
|
&self,
|
2020-09-11 07:54:56 +00:00
|
|
|
request: &Request,
|
|
|
|
) -> Result<(
|
2020-09-22 18:59:48 +00:00
|
|
|
Positioned<OperationDefinition>,
|
|
|
|
HashMap<Name, Positioned<FragmentDefinition>>,
|
2020-09-11 07:54:56 +00:00
|
|
|
CacheControl,
|
|
|
|
spin::Mutex<Extensions>,
|
|
|
|
)> {
|
2020-05-22 03:58:49 +00:00
|
|
|
// create extension instances
|
2020-06-13 14:14:47 +00:00
|
|
|
let extensions = spin::Mutex::new(Extensions(
|
2020-06-05 07:42:29 +00:00
|
|
|
self.0
|
|
|
|
.extensions
|
|
|
|
.iter()
|
2020-09-21 07:53:07 +00:00
|
|
|
.chain(request.extensions.iter())
|
2020-06-05 07:42:29 +00:00
|
|
|
.map(|factory| factory())
|
|
|
|
.collect_vec(),
|
2020-06-13 14:14:47 +00:00
|
|
|
));
|
2020-05-22 03:58:49 +00:00
|
|
|
|
2020-09-11 07:54:56 +00:00
|
|
|
extensions
|
|
|
|
.lock()
|
|
|
|
.parse_start(&request.query, &request.variables);
|
|
|
|
let document = parse_query(&request.query)
|
2020-06-13 14:14:47 +00:00
|
|
|
.map_err(Into::<Error>::into)
|
|
|
|
.log_error(&extensions)?;
|
|
|
|
extensions.lock().parse_end(&document);
|
2020-05-22 03:58:49 +00:00
|
|
|
|
|
|
|
// check rules
|
2020-06-13 14:14:47 +00:00
|
|
|
extensions.lock().validation_start();
|
2020-05-22 03:58:49 +00:00
|
|
|
let CheckResult {
|
|
|
|
cache_control,
|
|
|
|
complexity,
|
|
|
|
depth,
|
2020-07-11 02:05:30 +00:00
|
|
|
} = check_rules(
|
|
|
|
&self.env.registry,
|
|
|
|
&document,
|
2020-09-11 07:54:56 +00:00
|
|
|
Some(&request.variables),
|
2020-07-11 02:05:30 +00:00
|
|
|
self.validation_mode,
|
|
|
|
)
|
|
|
|
.log_error(&extensions)?;
|
2020-06-13 14:14:47 +00:00
|
|
|
extensions.lock().validation_end();
|
2020-05-22 03:58:49 +00:00
|
|
|
|
|
|
|
// check limit
|
|
|
|
if let Some(limit_complexity) = self.complexity {
|
|
|
|
if complexity > limit_complexity {
|
2020-06-13 14:14:47 +00:00
|
|
|
return Err(QueryError::TooComplex.into_error(Pos::default()))
|
|
|
|
.log_error(&extensions);
|
2020-05-22 03:58:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if let Some(limit_depth) = self.depth {
|
|
|
|
if depth > limit_depth {
|
2020-06-13 14:14:47 +00:00
|
|
|
return Err(QueryError::TooDeep.into_error(Pos::default())).log_error(&extensions);
|
2020-05-22 03:58:49 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-09-22 18:59:48 +00:00
|
|
|
let operation = if let Some(operation_name) = &request.operation_name {
|
|
|
|
match document.operations {
|
|
|
|
DocumentOperations::Single(_) => None,
|
|
|
|
DocumentOperations::Multiple(mut operations) => {
|
|
|
|
operations.remove(operation_name.as_str())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
.ok_or_else(|| QueryError::UnknownOperationNamed {
|
|
|
|
name: operation_name.clone(),
|
|
|
|
})
|
|
|
|
} else {
|
|
|
|
match document.operations {
|
|
|
|
DocumentOperations::Single(operation) => Ok(operation),
|
|
|
|
DocumentOperations::Multiple(map) if map.len() == 1 => {
|
|
|
|
Ok(map.into_iter().next().unwrap().1)
|
|
|
|
}
|
|
|
|
DocumentOperations::Multiple(_) => Err(QueryError::RequiredOperationName),
|
|
|
|
}
|
|
|
|
};
|
|
|
|
let operation = match operation {
|
|
|
|
Ok(operation) => operation,
|
|
|
|
Err(e) => {
|
|
|
|
let err = e.into_error(Pos::default());
|
2020-09-10 08:39:43 +00:00
|
|
|
extensions.lock().error(&err);
|
2020-09-11 07:54:56 +00:00
|
|
|
return Err(err);
|
2020-09-10 04:49:08 +00:00
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2020-09-22 18:59:48 +00:00
|
|
|
Ok((operation, document.fragments, cache_control, extensions))
|
2020-09-11 07:54:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
async fn execute_once(
|
|
|
|
&self,
|
2020-09-22 18:59:48 +00:00
|
|
|
operation: Positioned<OperationDefinition>,
|
|
|
|
fragments: HashMap<Name, Positioned<FragmentDefinition>>,
|
2020-09-11 07:54:56 +00:00
|
|
|
extensions: spin::Mutex<Extensions>,
|
|
|
|
variables: Variables,
|
|
|
|
ctx_data: Data,
|
|
|
|
) -> Response {
|
|
|
|
// execute
|
|
|
|
let inc_resolve_id = AtomicUsize::default();
|
2020-09-22 18:59:48 +00:00
|
|
|
let env = QueryEnv::new(
|
|
|
|
extensions,
|
|
|
|
variables,
|
|
|
|
operation,
|
|
|
|
fragments,
|
|
|
|
Arc::new(ctx_data),
|
|
|
|
);
|
2020-09-10 04:49:08 +00:00
|
|
|
let ctx = ContextBase {
|
|
|
|
path_node: None,
|
|
|
|
resolve_id: ResolveId::root(),
|
|
|
|
inc_resolve_id: &inc_resolve_id,
|
2020-09-22 18:59:48 +00:00
|
|
|
item: &env.operation.node.selection_set,
|
2020-09-10 08:39:43 +00:00
|
|
|
schema_env: &self.env,
|
2020-09-10 04:49:08 +00:00
|
|
|
query_env: &env,
|
|
|
|
};
|
|
|
|
|
|
|
|
env.extensions.lock().execution_start();
|
2020-09-13 17:52:36 +00:00
|
|
|
|
2020-09-22 18:59:48 +00:00
|
|
|
let data = match &env.operation.node.ty {
|
2020-09-13 17:52:36 +00:00
|
|
|
OperationType::Query => resolve_object(&ctx, &self.query).await,
|
2020-09-14 01:46:22 +00:00
|
|
|
OperationType::Mutation => resolve_object_serial(&ctx, &self.mutation).await,
|
2020-09-10 04:49:08 +00:00
|
|
|
OperationType::Subscription => {
|
2020-09-10 08:39:43 +00:00
|
|
|
return Error::Query {
|
2020-09-10 04:49:08 +00:00
|
|
|
pos: Pos::default(),
|
|
|
|
path: None,
|
|
|
|
err: QueryError::NotSupported,
|
2020-09-10 08:39:43 +00:00
|
|
|
}
|
2020-09-10 04:49:08 +00:00
|
|
|
.into()
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
env.extensions.lock().execution_end();
|
2020-09-10 08:39:43 +00:00
|
|
|
let extensions = env.extensions.lock().result();
|
2020-09-13 17:52:36 +00:00
|
|
|
|
2020-09-14 01:46:22 +00:00
|
|
|
Response::from_result(data).extensions(extensions)
|
2020-09-10 04:49:08 +00:00
|
|
|
}
|
|
|
|
|
2020-09-11 07:54:56 +00:00
|
|
|
/// Execute an GraphQL query.
|
|
|
|
pub async fn execute(&self, request: impl Into<Request>) -> Response {
|
|
|
|
let request = request.into();
|
2020-09-13 17:52:36 +00:00
|
|
|
match self.prepare_request(&request) {
|
2020-09-22 18:59:48 +00:00
|
|
|
Ok((operation, fragments, cache_control, extensions)) => self
|
|
|
|
.execute_once(
|
|
|
|
operation,
|
|
|
|
fragments,
|
|
|
|
extensions,
|
|
|
|
request.variables,
|
|
|
|
request.data,
|
|
|
|
)
|
2020-09-13 17:52:36 +00:00
|
|
|
.await
|
|
|
|
.cache_control(cache_control),
|
|
|
|
Err(e) => Response::from_error(e),
|
|
|
|
}
|
2020-09-11 07:54:56 +00:00
|
|
|
}
|
|
|
|
|
2020-09-17 08:39:55 +00:00
|
|
|
/// Execute an GraphQL batch query.
|
|
|
|
pub async fn execute_batch(&self, batch_request: BatchRequest) -> BatchResponse {
|
|
|
|
match batch_request {
|
|
|
|
BatchRequest::Single(request) => BatchResponse::Single(self.execute(request).await),
|
|
|
|
BatchRequest::Batch(requests) => BatchResponse::Batch(
|
|
|
|
futures::stream::iter(requests.into_iter())
|
|
|
|
.then(|request| self.execute(request))
|
|
|
|
.collect()
|
|
|
|
.await,
|
|
|
|
),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-09-11 08:41:56 +00:00
|
|
|
pub(crate) fn execute_stream_with_ctx_data(
|
|
|
|
&self,
|
2020-09-17 18:22:54 +00:00
|
|
|
request: impl Into<Request> + Send,
|
2020-09-11 08:41:56 +00:00
|
|
|
ctx_data: Arc<Data>,
|
2020-09-17 18:22:54 +00:00
|
|
|
) -> impl Stream<Item = Response> + Send {
|
2020-09-10 23:58:02 +00:00
|
|
|
let schema = self.clone();
|
2020-09-13 17:52:36 +00:00
|
|
|
|
2020-09-11 07:54:56 +00:00
|
|
|
async_stream::stream! {
|
2020-09-10 23:58:02 +00:00
|
|
|
let request = request.into();
|
2020-09-22 18:59:48 +00:00
|
|
|
let (operation, fragments, cache_control, extensions) = match schema.prepare_request(&request) {
|
2020-09-11 07:54:56 +00:00
|
|
|
Ok(res) => res,
|
2020-09-10 23:58:02 +00:00
|
|
|
Err(err) => {
|
|
|
|
yield Response::from(err);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2020-09-22 18:59:48 +00:00
|
|
|
if operation.node.ty != OperationType::Subscription {
|
2020-09-13 17:52:36 +00:00
|
|
|
yield schema
|
2020-09-22 18:59:48 +00:00
|
|
|
.execute_once(operation, fragments, extensions, request.variables, request.data)
|
2020-09-13 17:52:36 +00:00
|
|
|
.await
|
|
|
|
.cache_control(cache_control);
|
2020-09-10 23:58:02 +00:00
|
|
|
return;
|
2020-06-13 14:14:47 +00:00
|
|
|
}
|
2020-03-29 12:02:52 +00:00
|
|
|
|
2020-09-10 23:58:02 +00:00
|
|
|
let resolve_id = AtomicUsize::default();
|
|
|
|
let env = QueryEnv::new(
|
|
|
|
extensions,
|
|
|
|
request.variables,
|
2020-09-22 18:59:48 +00:00
|
|
|
operation,
|
|
|
|
fragments,
|
2020-09-11 08:41:56 +00:00
|
|
|
ctx_data,
|
2020-09-10 23:58:02 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
let ctx = env.create_context(
|
|
|
|
&schema.env,
|
|
|
|
None,
|
2020-09-22 18:59:48 +00:00
|
|
|
&env.operation.node.selection_set,
|
2020-09-26 07:52:59 +00:00
|
|
|
ResolveId::root(),
|
2020-09-10 23:58:02 +00:00
|
|
|
&resolve_id,
|
|
|
|
);
|
|
|
|
|
2020-09-26 07:52:59 +00:00
|
|
|
env.extensions.lock().execution_start();
|
2020-09-10 23:58:02 +00:00
|
|
|
|
2020-09-13 17:52:36 +00:00
|
|
|
let mut streams = Vec::new();
|
|
|
|
if let Err(e) = collect_subscription_streams(&ctx, &schema.subscription, &mut streams) {
|
2020-09-26 07:52:59 +00:00
|
|
|
env.extensions.lock().execution_end();
|
2020-09-13 17:52:36 +00:00
|
|
|
yield Response::from(e);
|
2020-09-10 23:58:02 +00:00
|
|
|
return;
|
|
|
|
}
|
2020-05-18 16:03:15 +00:00
|
|
|
|
2020-09-26 07:52:59 +00:00
|
|
|
env.extensions.lock().execution_end();
|
|
|
|
|
2020-09-13 17:52:36 +00:00
|
|
|
let mut stream = stream::select_all(streams);
|
|
|
|
while let Some(data) = stream.next().await {
|
|
|
|
let is_err = data.is_err();
|
|
|
|
let extensions = env.extensions.lock().result();
|
|
|
|
yield Response::from_result(data).extensions(extensions);
|
2020-09-10 23:58:02 +00:00
|
|
|
if is_err {
|
|
|
|
break;
|
|
|
|
}
|
2020-09-10 08:39:43 +00:00
|
|
|
}
|
2020-09-11 07:54:56 +00:00
|
|
|
}
|
2020-03-29 12:02:52 +00:00
|
|
|
}
|
2020-09-11 08:41:56 +00:00
|
|
|
|
|
|
|
/// Execute an GraphQL subscription.
|
2020-09-17 18:22:54 +00:00
|
|
|
pub fn execute_stream(
|
|
|
|
&self,
|
|
|
|
request: impl Into<Request>,
|
|
|
|
) -> impl Stream<Item = Response> + Send {
|
2020-09-11 08:41:56 +00:00
|
|
|
let mut request = request.into();
|
2020-09-12 16:07:46 +00:00
|
|
|
let ctx_data = std::mem::take(&mut request.data);
|
2020-09-11 08:41:56 +00:00
|
|
|
self.execute_stream_with_ctx_data(request, Arc::new(ctx_data))
|
|
|
|
}
|
2020-03-01 10:54:34 +00:00
|
|
|
}
|