Struct Path

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

Extract typed information from the request’s path.

Example

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

use actix_web::{web, App, Error};
use serde::Deserialize;
use actix_web_validator::Path;
use validator::Validate;

#[derive(Deserialize, Validate)]
struct Info {
    #[validate(length(min = 1))]
    username: String,
}

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

fn main() {
    let app = App::new().service(
        web::resource("/{username}/index.html") // <- define path parameters
             .route(web::get().to(index)) // <- use handler with Path` extractor
    );
}

Implementations

impl<T> Path<T>

pub fn into_inner(self) -> T

Deconstruct to an inner value

Trait Implementations

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

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: Debug> Debug for Path<T>

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

Formats the value using the given formatter.

impl<T> Deref for Path<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: Display> Display for Path<T>

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

Formats the value using the given formatter.

impl<T> FromRequest for Path<T>

where T: DeserializeOwned + Validate,

Extract typed information from the request’s path.

Example

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

use actix_web::{web, App, Error};
use serde::Deserialize;
use actix_web_validator::Path;
use validator::Validate;

#[derive(Deserialize, Validate)]
struct Info {
    #[validate(length(min = 1))]
    username: String,
}

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

fn main() {
    let app = App::new().service(
        web::resource("/{username}/index.html") // <- define path parameters
             .route(web::get().to(index)) // <- use handler with Path` extractor
    );
}

type Error = Error

The associated error which can be returned.

type Future = Ready<Result<Path<T>, <Path<T> as FromRequest>::Error>>

Future that resolves to a Self.

fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future

Create a Self from request parts asynchronously.

fn extract(req: &HttpRequest) -> Self::Future

Create a Self from request head asynchronously.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl<T: Eq> Eq for Path<T>

impl<T> StructuralPartialEq for Path<T>