# Builder in actix_limitation - Rust
Rate limiter builder.
Keywords: rust, rustlang, rust-lang, Builder

# Struct actix_limitation::Builder

source ·

    pub struct Builder { /* private fields */ }

Expand description

Rate limiter builder.

## Implementations§

source §

### impl Builder

source

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

Set upper limit.

source

#### pub fn period(&mut self, period: Duration) -> &mut Self

Set limit window/period.

source

#### pub fn key_by<F>(&mut self, resolver: F) -> &mut Selfwhere
F: Fn(&ServiceRequest) -> Option<String> + Send + Sync + 'static,

Sets rate limit key derivation function.

Should not be used in combination with `cookie_name` or `session_key` as they conflict.

source

#### pub fn cookie_name(
&mut self,
cookie_name: impl Into<Cow<'static, str>>
) -> &mut Self

👎Deprecated: Prefer `key_by`.

Sets name of cookie to be sent.

This method should not be used in combination of `key_by` as they conflict.

source

#### pub fn session_key(
&mut self,
session_key: impl Into<Cow<'static, str>>
) -> &mut Self

👎Deprecated: Prefer `key_by`.

Sets session key to be used in backend.

This method should not be used in combination of `key_by` as they conflict.

source

#### pub fn build(&mut self) -> Result<Limiter, Error>

Finalizes and returns a `Limiter`.

Note that this method will connect to the Redis server to test its connection which is a synchronous operation.

## Trait Implementations§

source §

### impl Debug for Builder

source §

#### fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

## Auto Trait Implementations§

§

### impl !RefUnwindSafe for Builder

§

### impl Send for Builder

§

### impl Sync for Builder

§

### impl Unpin for Builder

§

### impl !UnwindSafe for Builder

## Blanket Implementations§

source §

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

source §

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

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

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

const: unstable · source §

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

Immutably borrows from an owned value. Read more
source §

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

const: unstable · source §

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

Mutably borrows from an owned value. Read more
source §

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

const: unstable · source §

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

Returns the argument unchanged.

source §

### impl<T> Instrument for T

source §

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

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

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

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

### impl<T, U> Into<U> for Twhere
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.

source §

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

§

#### type Output = T

Should always be `Self`
source §

### impl<T, U> TryFrom<U> for Twhere
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.
source §

### impl<T, U> TryInto<U> for Twhere
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 Twhere
V: MultiLane<T>,

§

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

source §

### impl<T> WithSubscriber for T

source §

#### 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
source §

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

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