# Struct actix_protobuf::ProtoBufMessage

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    pub struct ProtoBufMessage<T: Message + Default> { /* private fields */ }

## Implementations

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### impl<T: Message + Default> ProtoBufMessage<T>

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#### pub fn new(req: &HttpRequest, payload: &mut Payload) -> Self

Create `ProtoBufMessage` for request.

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#### pub fn limit(self, limit: usize) -> Self

Change max size of payload. By default max size is 256Kb

## Trait Implementations

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### impl<T: Message + Default + 'static> Future for ProtoBufMessage<T>

#### type Output = Result<T, ProtoBufPayloadError>

The type of value produced on completion.

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#### fn poll(self: Pin<&mut Self>, task: &mut Context<'_>) -> Poll<Self::Output>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more

## Auto Trait Implementations

### impl<T> !RefUnwindSafe for ProtoBufMessage<T>

### impl<T> !Send for ProtoBufMessage<T>

### impl<T> !Sync for ProtoBufMessage<T>

### impl<T> Unpin for ProtoBufMessage<T>

### impl<T> !UnwindSafe for ProtoBufMessage<T>

## Blanket Implementations

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

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#### fn type_id(&self) -> TypeId

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

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

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

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

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

Returns the argument unchanged.

### impl<T> FutureExt for T where
T: Future + ?Sized,

#### fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,

Map this future’s output to a different type, returning a new future of the resulting type. Read more

#### fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,

Map this future’s output to a different type, returning a new future of the resulting type. Read more

#### fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,

Chain on a computation for when a future finished, passing the result of the future to the provided closure `f`. Read more

#### fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,

Wrap this future in an `Either` future, making it the left-hand variant of that `Either`. Read more

#### fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,

Wrap this future in an `Either` future, making it the right-hand variant of that `Either`. Read more

#### fn into_stream(self) -> IntoStream<Self>

Convert this future into a single element stream. Read more

#### fn flatten(self) -> Flatten<Self> where
Self::Output: Future,

Flatten the execution of this future when the output of this future is itself another future. Read more

#### fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,

Flatten the execution of this future when the successful result of this future is a stream. Read more

#### fn fuse(self) -> Fuse<Self>

Fuse a future such that `poll` will never again be called once it has completed. This method can be used to turn any `Future` into a `FusedFuture`. Read more

#### fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),

Do something with the output of a future before passing it on. Read more

#### fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,

Catches unwinding panics while polling the future. Read more

#### fn shared(self) -> Shared<Self> where
Self::Output: Clone,

Create a cloneable handle to this future where all handles will resolve to the same result. Read more

#### fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)

Turn this future into a future that yields `()` on completion and sends its output to another future on a separate task. Read more

#### fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>> where
Self: 'a + Send,

Wrap the future in a Box, pinning it. Read more

#### fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,

Wrap the future in a Box, pinning it. Read more

#### fn unit_error(self) -> UnitError<Self>

Turns a `Future<Output = T>` into a `TryFuture<Ok = T, Error = ()`>. Read more

#### fn never_error(self) -> NeverError<Self>

Turns a `Future<Output = T>` into a `TryFuture<Ok = T, Error = Never`>. Read more

#### fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,

A convenience for calling `Future::poll` on `Unpin` future types.

#### fn now_or_never(self) -> Option<Self::Output>

Evaluates and consumes the future, returning the resulting output if the future is ready after the first call to `Future::poll`. Read more

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### impl<T> Instrument for T

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#### fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided `Span`, returning an `Instrumented` wrapper. Read more

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#### fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current `Span`, returning an `Instrumented` wrapper. Read more

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

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<F> IntoFuture for F where
F: Future,

#### type Output = <F as Future>::Output

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

The output that the future will produce on completion.

#### type Future = F

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

Which kind of future are we turning this into?

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#### fn into_future(self) -> <F as IntoFuture>::Future

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

Creates a future from a value.

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### impl<T> Same<T> for T

#### type Output = T

Should always be `Self`

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

### impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized,

#### type Ok = T

The type of successful values yielded by this future

#### type Error = E

The type of failures yielded by this future

#### fn try_poll(
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>

Poll this `TryFuture` as if it were a `Future`. Read more

### impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,

#### fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,

Flattens the execution of this future when the successful result of this future is a [`Sink`]. Read more

#### fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,

Maps this future’s success value to a different value. Read more

#### fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,

Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more

#### fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,

Maps this future’s error value to a different value. Read more

#### fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,

Maps this future’s `Error` to a new error type using the `Into` trait. Read more

#### fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>,

Maps this future’s `Ok` to a new type using the `Into` trait. Read more

#### fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more

#### fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more

#### fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),

Do something with the success value of a future before passing it on. Read more

#### fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),

Do something with the error value of a future before passing it on. Read more

#### fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

Flatten the execution of this future when the successful result of this future is another future. Read more

#### fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,

Flatten the execution of this future when the successful result of this future is a stream. Read more

#### fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok,

Unwraps this future’s output, producing a future with this future’s `Ok` type as its `Output` type. Read more

#### fn into_future(self) -> IntoFuture<Self>

Wraps a [`TryFuture`] into a type that implements `Future`. Read more

#### fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,

A convenience method for calling [`TryFuture::try_poll`] on `Unpin` future types. Read more

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

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

### impl<V, T> VZip<V> for T where
V: MultiLane<T>,

#### fn vzip(self) -> V

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### impl<T> WithSubscriber for T

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#### fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more

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#### fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default `Subscriber` to this type, returning a `WithDispatch` wrapper. Read more