Struct actix_identity::Identity

pub struct Identity(_);

A verified user identity. It can be used as a request extractor.

The lifecycle of a user identity is tied to the lifecycle of the underlying session. If the session is destroyed (e.g. the session expired), the user identity will be forgotten, de-facto forcing a user log out.

Examples

use actix_web::{
    get, post, Responder, HttpRequest, HttpMessage, HttpResponse
};
use actix_identity::Identity;

#[get("/")]
async fn index(user: Option<Identity>) -> impl Responder {
    if let Some(user) = user {
        format!("Welcome! {}", user.id().unwrap())
    } else {
        "Welcome Anonymous!".to_owned()
    }
}

#[post("/login")]
async fn login(request: HttpRequest) -> impl Responder {
    Identity::login(&request.extensions(), "User1".into());
    HttpResponse::Ok()
}

#[post("/logout")]
async fn logout(user: Identity) -> impl Responder {
    user.logout();
    HttpResponse::Ok()
}

Extractor Behaviour

What happens if you try to extract an Identity out of a request that does not have a valid identity attached? The API will return a 401 UNAUTHORIZED to the caller.

If you want to customise this behaviour, consider extracting Option<Identity> or Result<Identity, actix_web::Error> instead of a bare Identity: you will then be fully in control of the error path.

Examples

use actix_web::{http::header::LOCATION, get, HttpResponse, Responder};
use actix_identity::Identity;

#[get("/")]
async fn index(user: Option<Identity>) -> impl Responder {
    if let Some(user) = user {
        HttpResponse::Ok().finish()
    } else {
        // Redirect to login page if unauthenticated
        HttpResponse::TemporaryRedirect()
            .insert_header((LOCATION, "/login"))
            .finish()
    }
}

Implementations

impl Identity

pub fn id(&self) -> Result<String, Error>

Return the user id associated to the current session.

Examples

use actix_web::{get, Responder};
use actix_identity::Identity;

#[get("/")]
async fn index(user: Option<Identity>) -> impl Responder {
    if let Some(user) = user {
        format!("Welcome! {}", user.id().unwrap())
    } else {
        "Welcome Anonymous!".to_owned()
    }
}

pub fn login(ext: &Extensions, id: String) -> Result<Self, Error>

Attach a valid user identity to the current session.

This method should be called after you have successfully authenticated the user. After login has been called, the user will be able to access all routes that require a valid Identity.

Examples

use actix_web::{post, Responder, HttpRequest, HttpMessage, HttpResponse};
use actix_identity::Identity;

#[post("/login")]
async fn login(request: HttpRequest) -> impl Responder {
    Identity::login(&request.extensions(), "User1".into());
    HttpResponse::Ok()
}

pub fn logout(self)

Remove the user identity from the current session.

After logout has been called, the user will no longer be able to access routes that require a valid Identity.

The behaviour on logout is determined by IdentityMiddlewareBuilder::logout_behaviour.

Examples

use actix_web::{post, Responder, HttpResponse};
use actix_identity::Identity;

#[post("/logout")]
async fn logout(user: Identity) -> impl Responder {
    user.logout();
    HttpResponse::Ok()
}

Trait Implementations

impl FromRequest for Identity

Extractor implementation for Identity.

Examples

use actix_web::{get, Responder};
use actix_identity::Identity;

#[get("/")]
async fn index(user: Option<Identity>) -> impl Responder {
    if let Some(user) = user {
        format!("Welcome! {}", user.id().unwrap())
    } else {
        "Welcome Anonymous!".to_owned()
    }
}

type Error = Error

The associated error which can be returned.

type Future = Ready<Result<Identity, <Identity 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.