### Method

# WebKit2 UserContentFilterStore save

#### Declaration [src]

    void
    webkit_user_content_filter_store_save (
      WebKitUserContentFilterStore* store,
      const gchar* identifier,
      GBytes* source,
      GCancellable* cancellable,
      GAsyncReadyCallback callback,
      gpointer user_data
    )

#### Description [src]

Asynchronously save a content filter from a set source rule.

Asynchronously save a content filter from a source rule set in the WebKit content extesions JSON format.

The `identifier` can be used afterwards to refer to the filter when using `webkit_user_content_filter_store_remove()` and webkit_user_content_filter_store_load(). When the `identifier` has been used in the past, the new filter source will replace the one saved beforehand for the same identifier.

When the operation is finished, `callback` will be invoked, which then can use `webkit_user_content_filter_store_save_finish()` to obtain the resulting filter.

Available since: | 2.24

#### Parameters

`identifier` | `const gchar*`
| A string used to identify the saved filter.
| The data is owned by the caller of the function.
| The value is a NUL terminated UTF-8 string.
`source` | `GBytes`
| `GBytes` containing the rule set in JSON format.
| The data is owned by the caller of the function.
`cancellable` | `GCancellable`
| A `GCancellable` or `NULL` to ignore.
| The argument can be `NULL`.
| The data is owned by the caller of the function.
`callback` | `GAsyncReadyCallback`
| A `GAsyncReadyCallback` to call when saving is completed.
| The argument can be `NULL`.
`user_data` | `gpointer`
| The data to pass to the callback function.
| The argument can be `NULL`.
| The data is owned by the caller of the function.