View Source DSL: AshAuthentication.TokenResource
This is an Ash resource extension which generates the default token resource.
The token resource is used to store information about tokens that should not be shared with the end user. It does not actually contain any tokens.
For example:
- When an authentication token has been revoked
- When a confirmation token has changes to apply
Storage
The information stored in this resource is essentially ephemeral - all tokens have an expiry date, so it doesn't make sense to keep them after that time has passed. However, if you have any tokens with very long expiry times then we suggest you store this resource in a resilient data-layer such as Postgres.
Usage
There is no need to define any attributes or actions (although you can if you want). The extension will wire up everything that's needed for the token system to function.
defmodule MyApp.Accounts.Token do
use Ash.Resource,
data_layer: AshPostgres.DataLayer,
extensions: [AshAuthentication.TokenResource],
domain: MyApp.Accounts
postgres do
table "tokens"
repo MyApp.Repo
end
end
Whilst it is possible to have multiple token resources, there is no need to do so.
Removing expired records
Once a token has expired there's no point in keeping the information it refers
to, so expired tokens can be automatically removed by adding the
AshAuthentication.Supervisor
to your application supervision tree. This
will start the AshAuthentication.TokenResource.Expunger
GenServer
which
periodically scans and removes any expired records.
token
Configuration options for this token resource
Nested DSLs
Options
Name | Type | Default | Docs |
---|---|---|---|
domain | module | The Ash domain to use to access this resource. | |
expunge_expired_action_name | atom | :expunge_expired | The name of the action used to remove expired tokens. |
read_expired_action_name | atom | :read_expired | The name of the action use to find all expired tokens. |
expunge_interval | pos_integer | 12 | How often to scan this resource for records which have expired, and thus can be removed. |
store_token_action_name | atom | :store_token | The name of the action to use to store a token, if require_tokens_for_authentication? is enabled in your authentication resource. |
get_token_action_name | atom | :get_token | The name of the action used to retrieve tokens from the store, if require_tokens_for_authentication? is enabled in your authentication resource. |
token.revocation
Configuration options for token revocation
Options
Name | Type | Default | Docs |
---|---|---|---|
revoke_token_action_name | atom | :revoke_token | The name of the action used to revoke tokens. |
is_revoked_action_name | atom | :revoked? | The name of the action used to check if a token is revoked. |
token.confirmation
Configuration options for confirmation tokens
Options
Name | Type | Default | Docs |
---|---|---|---|
store_changes_action_name | atom | :store_confirmation_changes | The name of the action used to store confirmation changes. |
get_changes_action_name | atom | :get_confirmation_changes | The name of the action used to get confirmation changes. |