Struct actix_web::Path

pub struct Path<T> { /* fields omitted */ }

Extract typed information from the request's path.

Example

use actix_web::{http, App, Path, Result};

/// extract path info from "/{username}/{count}/index.html" url
/// {username} - deserializes to a String
/// {count} -  - deserializes to a u32
fn index(info: Path<(String, u32)>) -> Result<String> {
    Ok(format!("Welcome {}! {}", info.0, info.1))
}

fn main() {
    let app = App::new().resource(
        "/{username}/{count}/index.html", // <- define path parameters
        |r| r.method(http::Method::GET).with(index),
    ); // <- use `with` extractor
}

It is possible to extract path information to a specific type that implements Deserialize trait from serde.

#[macro_use] extern crate serde_derive;
use actix_web::{http, App, Path, Result};

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

/// extract path info using serde
fn index(info: Path<Info>) -> Result<String> {
    Ok(format!("Welcome {}!", info.username))
}

fn main() {
    let app = App::new().resource(
        "/{username}/index.html", // <- define path parameters
        |r| r.method(http::Method::GET).with(index),
    ); // <- use `with` extractor
}

Methods

impl<T> Path<T>

pub fn into_inner(self) -> T

Deconstruct to an inner value

Trait Implementations

impl<T: PartialEq> PartialEq for Path<T>

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl<T: Eq> Eq for Path<T>

impl<T: PartialOrd> PartialOrd for Path<T>

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

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Ord> Ord for Path<T>

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

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

Important traits for &'a mut R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn as_ref(&self) -> &T

Performs the conversion.

impl<T> Deref for Path<T>

type Target = T

The resulting type after dereferencing.

Important traits for &'a mut R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for Path<T>

Important traits for &'a mut R

impl<'a, R> Read for &'a mut R where
    R: Read + ?Sized, impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T, S> FromRequest<S> for Path<T> where     T: DeserializeOwned,

type Config = ()

Configuration for conversion process

type Result = Result<Self, Error>

Future that resolves to a Self

fn from_request(req: &HttpRequest<S>, _: &Self::Config) -> Self::Result

Convert request to a Self

fn extract(req: &HttpRequest<S>) -> Self::Result

Convert request to a Self

impl<T: Debug> Debug for Path<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Display> Display for Path<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.