# BearerBuilder in actix_web_httpauth::headers::www_authenticate::bearer - Rust
Builder for the [`Bearer`] challenge.
Keywords: rust, rustlang, rust-lang, BearerBuilder

# Struct actix_web_httpauth::headers::www_authenticate::bearer::BearerBuilder

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    pub struct BearerBuilder(_);

Expand description

Builder for the `Bearer` challenge.

It is up to implementor to fill all required fields, neither this `Builder` nor `Bearer` provide any validation.

## Implementations

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### impl BearerBuilder

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#### pub fn scope<T>(self, value: T) -> Self where
T: Into<Cow<'static, str>>,

Provides the `scope` attribute, as defined in RFC 6749 §3.3.

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#### pub fn realm<T>(self, value: T) -> Self where
T: Into<Cow<'static, str>>,

Provides the `realm` attribute, as defined in RFC 2617.

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#### pub fn error(self, value: Error) -> Self

Provides the `error` attribute, as defined in [RFC 6750, Section 3.1].

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#### pub fn error_description<T>(self, value: T) -> Self where
T: Into<Cow<'static, str>>,

Provides the `error_description` attribute, as defined in [RFC 6750, Section 3].

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#### pub fn error_uri<T>(self, value: T) -> Self where
T: Into<Cow<'static, str>>,

Provides the `error_uri` attribute, as defined in [RFC 6750 §3].

It is up to implementor to provide properly-formed absolute URI.

RFC 6750 §3

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#### pub fn finish(self) -> Bearer

Consumes the builder and returns built `Bearer` instance.

## Trait Implementations

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### impl Debug for BearerBuilder

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

Formats the value using the given formatter. Read more

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### impl Default for BearerBuilder

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#### fn default() -> BearerBuilder

Returns the “default value” for a type. Read more

## Auto Trait Implementations

### impl RefUnwindSafe for BearerBuilder

### impl Send for BearerBuilder

### impl Sync for BearerBuilder

### impl Unpin for BearerBuilder

### impl UnwindSafe for BearerBuilder

## 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,

const: unstable · source

#### 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,

const: unstable · source

#### 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

const: unstable · source

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

Returns the argument unchanged.

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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<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.

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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