# Account validity API

This API allows a server administrator to manage the validity of an account. To use it, you must enable the account validity feature (under `account_validity`) in Synapse's configuration.

To use it, you will need to authenticate by providing an `access_token` for a server admin: see Admin API.

## Renew account

This API extends the validity of an account by as much time as configured in the `period` parameter from the `account_validity` configuration.

The API is:

    POST /_synapse/admin/v1/account_validity/validity

with the following body:

    {
        "user_id": "<user ID for the account to renew>",
        "expiration_ts": 0,
        "enable_renewal_emails": true
    }

`expiration_ts` is an optional parameter and overrides the expiration date, which otherwise defaults to now + validity period.

`enable_renewal_emails` is also an optional parameter and enables/disables sending renewal emails to the user. Defaults to true.

The API returns with the new expiration date for this account, as a timestamp in milliseconds since epoch:

    {
        "expiration_ts": 0
    }