The

expire_at

attribute of an existing Ory authentication cookie is automatically managed by the Ory system and is based on the session lifespan configuration. You cannot directly update the

expire_at

attribute of an existing cookie. However, you can change the session lifespan or refresh the session, which indirectly affects the

expire_at

attribute. To change the session lifespan, you can use the Ory CLI to update the configuration value for the session lifespan property. Here's how you can do it: 1. Download the Ory Identities config from your project and save it to a file:

bash ory list projects   ory get identity-config {project-id} --format yaml > identity-config.yaml

2. Update the configuration value for session lifespan property to the desired value in the

identity-config.yaml

file:

yaml session:   cookie:    domain: {project.slug}.<http://projects.oryapis.com|projects.oryapis.com>    name: ory_session_{name}    path: /    persistent: false    same_site: Lax   lifespan: 720h0m0s

3. Update the Ory Identities configuration using the file you worked with:

bash ory update identity-config {project-id} --file identity-config.yaml

In this example, the session lifespan is set to 720 hours (30 days). You can adjust this value as needed. To refresh a session, you can interact with the

/self-service/login/browser

or

/self-service/login/api

APIs and set the

refresh

parameter to true. When you refresh a session, its

expires

property is set to a value that is the time when the refresh is triggered plus the amount of time defined by the value of

/session/lifespan

. Here's an example of how to force a session refresh:

bash https://{project.slug}.<http://projects.oryapis.com/self-service/login/browser?refresh=true|projects.oryapis.com/self-service/login/browser?refresh=true>

Please note that refreshing a session will require the user to re-authenticate. For more details, you can refer to the [Ory documentation](https://www.ory.sh/docs/kratos/session-management/overview#ory-session) and [Ory Session Management](https://www.ory.sh/docs/kratos/session-management/overview#using-ory-session-cookie).