Struct actix_web_lab::extract::Path

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pub struct Path<T>(pub T);
Expand description

Extract typed data from request path segments.

Alternative to web::Path extractor from Actix Web that allows deconstruction, but omits the implementation of Deref.

Unlike, HttpRequest::match_info, this extractor will fully percent-decode dynamic segments, including /, %, and +.

§Examples

use actix_web::get;
use actix_web_lab::extract::Path;

// extract path info from "/{name}/{count}/index.html" into tuple
// {name}  - deserialize a String
// {count} - deserialize a u32
#[get("/{name}/{count}/index.html")]
async fn index(Path((name, count)): Path<(String, u32)>) -> String {
    format!("Welcome {}! {}", name, count)
}

Path segments also can be deserialized into any type that implements serde::Deserialize. Path segment labels will be matched with struct field names.

use actix_web::get;
use actix_web_lab::extract::Path;
use serde::Deserialize;

#[derive(Deserialize)]
struct Info {
    name: String,
}

// extract `Info` from a path using serde
#[get("/{name}")]
async fn index(info: Path<Info>) -> String {
    let info = info.into_inner();
    format!("Welcome {}!", info.name)
}

Tuple Fields§

§0: T

Implementations§

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impl<T> Path<T>

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pub fn into_inner(self) -> T

Unwrap into inner T value.

Trait Implementations§

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impl<T> AsRef<T> for Path<T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<T: Debug> Debug for Path<T>

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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<T> Display for Path<T>
where T: Display,

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

Formats the value using the given formatter. Read more
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impl<T> From<T> for Path<T>

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fn from(original: T) -> Path<T>

Converts to this type from the input type.
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impl<T> FromRequest for Path<T>

See here for example of usage as an extractor.

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type Error = Error

The associated error which can be returned.
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type Future = Ready<Result<Path<T>, <Path<T> as FromRequest>::Error>>

Future that resolves to a Self. Read more
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fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future

Create a Self from request parts asynchronously.
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fn extract(req: &HttpRequest) -> Self::Future

Create a Self from request head asynchronously. Read more
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impl<T: Ord> Ord for Path<T>

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fn cmp(&self, other: &Path<T>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<T: PartialEq> PartialEq for Path<T>

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fn eq(&self, other: &Path<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: PartialOrd> PartialOrd for Path<T>

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fn partial_cmp(&self, other: &Path<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<T: Eq> Eq for Path<T>

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impl<T> StructuralPartialEq for Path<T>

Auto Trait Implementations§

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impl<T> Freeze for Path<T>
where T: Freeze,

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impl<T> RefUnwindSafe for Path<T>
where T: RefUnwindSafe,

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impl<T> Send for Path<T>
where T: Send,

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impl<T> Sync for Path<T>
where T: Sync,

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impl<T> Unpin for Path<T>
where T: Unpin,

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impl<T> UnwindSafe for Path<T>
where T: UnwindSafe,

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<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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impl<T> From<T> for T

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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>,

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

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>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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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