auth.sessions

`` auth.sessions is responsible for maintaining a list of sessions and information regarding them. By default, `auth.sessions` is set to an instance of `SessionManager`.

The default SessionManager only uses in-memory storage, and so shutting down the server will cause data to be lost.

As with the other managers, auth.sessions may be set to a developer-provided object, though it is necessary that the new auth.sessions has the same functions available as the default SessionManager, and that they return the same expected values. Extra functionality may be added with no affect to express-auth.

NOTE: While it is not necessary that custom session models be supported by a developer provided user manager, it is imperative that the get function returns an object with an userID and expires field.

Properties & Methods

Method/Property	Returns	Description
`.model`	{ "userID": "string", "expires": 0, //in ms ... }	Default model for .add(...). NOTE: model will always have `.userID` and `.expires`. They will be added if not provided.
`.purgeInterval`	`number`	Purge interval in ms for when sessions should be iterated through and deleted if expired.
`.maxAge`	`number`	Maximum age in ms that a session can last.
`.httpOnly`	`bool`	Specifies a session cookie's `HttpOnly Set-Cookie attribute`
`.sameSite`	`bool` `true` will set the `SameSite` attribute to `Strict` for strict same site enforcement. `false` will not set the `SameSite` attribute. `string` `'lax'` will set the `SameSite` attribute to `Lax` for lax same site enforcement. `'none'` will set the `SameSite` attribute to `None` for an explicit cross-site cookie. `'strict'` will set the `SameSite` attribute to `Strict` for strict same site enforcement.	Specifies the boolean or string to be the value for the `SameSite Set-Cookie attribute`
`.secure`	`bool`	Specifies a session cookie's `Secure Set-Cookie attribute`
`.new(userID, model=this.model, maxAge=this.maxAge)`	`string sessionID` if the new session was created.	Creates a new user session. Regardless of `model`, `model.userID = userID` and `model.expires = Date.now() + maxAge`.
`.get(id)`	`model` of the session with the provided `id`. `undefined` if the session does not exist. `false` if the session was unable to be retrieved (other).	Retrieves a session.
`.all()`	`[string]`	Retrieves a list of all session `id`s.
`.set(id, model)`	`true` if the session was successfully updated. `undefined` if the session does not exist. `false` if the session was unable to be updated (other).	Updates a session's `model`. NOTE: While the model's `expires` can be updated using this method, it must be defined as a `Date`. NOTE: While the model's `userID` can be updated using this method, it must be defined as a string.
`.del(id)`	`true` if the session was deleted. `undefined` if the session was not deleted because it did not exist. `false` if the session was not deleted (other).	Deletes a session.
`.purge()`	-	Deletes all expired sessions.
`.startPeriodicPurging()`	-	Starts periodically purging expired sessions based on `.purgeInterval`
`.stopPeriodicPurging()`	-	Stops periodically purging expired sessions