> ## Documentation Index
> Fetch the complete documentation index at: https://auth0.com/llms.txt
> Use this file to discover all available pages before exploring further.

> Learn about the post-user-registration Action trigger's API object.

# Actions Triggers: post-user-registration - API Object

The API object for the `post-user-registration` Actions trigger includes:

## `api.cache`

Store and retrieve data that persists across executions.

### `api.cache.delete(key)`

Delete a record describing a cached value at the supplied key if it exists.

Returns a `CacheWriteResult` object with  `type: "success"` if a value was removed from the cache. A failed operation returns `type: "error"`. For errors, the returned object will have a
`code` property that indicates the nature of the failure.

| Parameter | Description                                          |
| --------- | ---------------------------------------------------- |
| `key`     | *String*. The key of the record stored in the cache. |

### `api.cache.get(key)`

Retrieve a record describing a cached value at the supplied
`key`, if it exists. If a record is found, the cached value can
be found at the `value` property of the returned object.

Returns a cache record if an item is found in the cache for the supplied
`key`. Cache records are objects with a
`value` property holding the cached value as well as an
`expires_at` property indicating the maximum expiry of
the record in milliseconds since the Unix epoch.

**Important:**
This cache is designed for short-lived, ephemeral data. Items may not be
available in later transactions even if they are within their supplied their
lifetime.

| Parameter | Description                                          |
| --------- | ---------------------------------------------------- |
| `key`     | *String*. The key of the record stored in the cache. |

### `api.cache.set(key, value, [options])`

Store or update a string value in the cache at the specified key.

Values stored in this cache are scoped to the Trigger in which they are set.
They are subject to the
[Actions Cache Limits](/docs/customize/actions/limitations).

Values stored in this way will have lifetimes of up to the specified
`ttl` or `expires_at` values. If no lifetime is
specified, a default of lifetime of 15 minutes will be used. Lifetimes may
not exceed the maximum duration listed at
[Actions Cache Limits](/docs/customize/actions/limitations).

| Parameter            | Description                                                                                                                                                                                                                                                                                                                                                  |
| -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `key`                | *String*. The key of the record stored in the cache.                                                                                                                                                                                                                                                                                                         |
| `value`              | *String*. The value of the record to be stored.                                                                                                                                                                                                                                                                                                              |
| `options`            | *Optional object*. Options for adjusting cache behavior.                                                                                                                                                                                                                                                                                                     |
| `options.expires_at` | *Optional number*. The absolute expiry time in milliseconds since the unix epoch. While cached records may be evicted earlier, they will never remain beyond the the supplied `expires_at`.<br />*Note:* This value should not be supplied if a value was also provided for `ttl`. If both options are supplied, the earlier expiry of the two will be used. |
| `options.ttl`        | *Optional number*. The time-to-live value of this cache entry in milliseconds. While cached values may be evicted earlier, they will never remain beyond the the supplied `ttl`.<br />*Note:* This value should not be supplied if a value was also provided for `expires_at`. If both options are supplied, the earlier expiry of the two will be used.     |