# [−][src]Trait actix_web::middleware::identity::IdentityPolicy

    pub trait IdentityPolicy<S>: Sized + 'static {
        type Identity: Identity;
        type Future: Future<Item = Self::Identity, Error = Error>;
        fn from_request(&self, request: &HttpRequest<S>) -> Self::Future;
    }

Identity policy definition.

## Associated Types

### `type Identity: Identity`

The associated identity

### `type Future: Future<Item = Self::Identity, Error = Error>`

The return type of the middleware

## Required Methods

### `fn from_request(&self, request: &HttpRequest<S>) -> Self::Future`

Parse the session from request and load data from a service identity.

## Implementors

###

`impl<S> IdentityPolicy<S> for CookieIdentityPolicy`

[src]

#### `type Identity = CookieIdentity`

#### `type Future = FutureResult<CookieIdentity, Error>`

####

`fn from_request(&self, req: &HttpRequest<S>) -> Self::Future`

[src]

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