# [−][src]Struct actix_web::HttpContext

    pub struct HttpContext<A, S = ()> where
        A: Actor<Context = HttpContext<A, S>>,  { /* fields omitted */ }

Execution context for http actors

## Methods

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`impl<A, S: 'static> HttpContext<A, S> where A: Actor<Context = Self>,`

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`pub fn create(req: HttpRequest<S>, actor: A) -> Body`

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Create a new HTTP Context from a request and an actor

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`pub fn with_factory<F>(req: HttpRequest<S>, f: F) -> Body where F: FnOnce(&mut Self) -> A + 'static,`

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Create a new HTTP Context

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`impl<A, S> HttpContext<A, S> where A: Actor<Context = Self>,`

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`pub fn state(&self) -> &S`

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Shared application state

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`pub fn request(&mut self) -> &mut HttpRequest<S>`

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Incoming request

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`pub fn write<B: Into<Binary>>(&mut self, data: B)`

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Write payload

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`pub fn write_eof(&mut self)`

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Indicate end of streaming payload. Also this method calls `Self::close`.

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`pub fn drain(&mut self) -> Drain<A>`

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Returns drain future

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`pub fn connected(&self) -> bool`

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Check if connection still open

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`pub fn handle(&self) -> SpawnHandle`

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Handle of the running future

SpawnHandle is the handle returned by `AsyncContext::spawn()` method.

## Trait Implementations

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`impl<A, S> ActorContext for HttpContext<A, S> where A: Actor<Context = Self>,`

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`fn stop(&mut self)`

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Immediately stop processing incoming messages and switch to a `stopping` state Read more

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`fn terminate(&mut self)`

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Terminate actor execution

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`fn state(&self) -> ActorState`

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Actor execution state

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`impl<A, S> AsyncContext<A> for HttpContext<A, S> where A: Actor<Context = Self>,`

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`fn spawn<F>(&mut self, fut: F) -> SpawnHandle where F: ActorFuture<Item = (), Error = (), Actor = A> + 'static,`

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Spawn async future into context. Returns handle of the item, could be used for cancelling execution. Read more

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`fn wait<F>(&mut self, fut: F) where F: ActorFuture<Item = (), Error = (), Actor = A> + 'static,`

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Spawn future into the context. Stop processing any of incoming events until this future resolves. Read more

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`fn cancel_future(&mut self, handle: SpawnHandle) -> bool`

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Cancel future. handle is a value returned by `spawn` method.

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`fn address(&self) -> Addr<A>`

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Return `Address` of the context

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`fn waiting(&self) -> bool` |

Check if context is paused (waiting for future completion or stopping)

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`fn add_stream<S>(&mut self, fut: S) -> SpawnHandle where A: StreamHandler<<S as Stream>::Item, <S as Stream>::Error>, S: Stream + 'static,` |

This method register stream to an actor context and allows to handle `Stream` in similar way as normal actor messages. Read more

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`fn add_message_stream<S>(&mut self, fut: S) where A: Handler<<S as Stream>::Item>, S: Stream<Error = ()> + 'static, <S as Stream>::Item: Message,` |

This method is similar to `add_stream` but it skips stream errors. Read more

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`fn notify<M>(&mut self, msg: M) where A: Handler<M>, M: Message + 'static,` |

Send message `msg` to self.

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`fn notify_later<M>(&mut self, msg: M, after: Duration) -> SpawnHandle where A: Handler<M>, M: Message + 'static,` |

Send message `msg` to self after specified period of time. Returns spawn handle which could be used for cancellation. Notification get cancelled if context's stop method get called. Read more

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`fn run_later<F>(&mut self, dur: Duration, f: F) -> SpawnHandle where F: FnOnce(&mut A, &mut <A as Actor>::Context) + 'static,` |

Execute closure after specified period of time within same Actor and Context. Execution get cancelled if context's stop method get called. Read more

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`fn run_interval<F>(&mut self, dur: Duration, f: F) -> SpawnHandle where F: FnMut(&mut A, &mut <A as Actor>::Context) + 'static,` |

Spawns a job to execute the given closure periodically, at a specified fixed interval Read more

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`impl<A, M, S> ToEnvelope<A, M> for HttpContext<A, S> where A: Actor<Context = HttpContext<A, S>> + Handler<M>, M: Message + Send + 'static, M::Result: Send,`

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`fn pack(msg: M, tx: Option<Sender<M::Result>>) -> Envelope<A>`

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Pack message into suitable envelope

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`impl<A, S> AsyncContextParts<A> for HttpContext<A, S> where A: Actor<Context = Self>,`

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`fn parts(&mut self) -> &mut ContextParts<A>`

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## Auto Trait Implementations

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`impl<A, S = ()> !Send for HttpContext<A, S>`

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`impl<A, S = ()> !Sync for HttpContext<A, S>`

## Blanket Implementations

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`impl<T> From for T`

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`fn from(t: T) -> T`

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Performs the conversion.

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`impl<T, U> Into for T where U: From<T>,`

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`fn into(self) -> U`

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Performs the conversion.

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`impl<T, U> TryFrom for T where T: From<U>,`

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#### `type Error = !`

🔬 This is a nightly-only experimental API. (`try_from`)

The type returned in the event of a conversion error.

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`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`

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🔬 This is a nightly-only experimental API. (`try_from`)

Performs the conversion.

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`impl<T> Borrow for T where T: ?Sized,`

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`fn borrow(&self) -> &T`

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Immutably borrows from an owned value. Read more

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`impl<T> BorrowMut for T where T: ?Sized,`

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`fn borrow_mut(&mut self) -> &mut T`

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Mutably borrows from an owned value. Read more

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`impl<T, U> TryInto for T where U: TryFrom<T>,`

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#### `type Error = <U as TryFrom<T>>::Error`

🔬 This is a nightly-only experimental API. (`try_from`)

The type returned in the event of a conversion error.

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`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`

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🔬 This is a nightly-only experimental API. (`try_from`)

Performs the conversion.

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`impl<T> Any for T where T: 'static + ?Sized,`

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`fn get_type_id(&self) -> TypeId`

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🔬 This is a nightly-only experimental API. (`get_type_id`)

this method will likely be replaced by an associated static

Gets the `TypeId` of `self`. Read more

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`impl<T> Erased for T`

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