The document explains the Token module in Drupal 8, which allows small bits of text to be used as placeholders in larger documents. It outlines the functionality of the module, including providing an API for other modules and offering additional browsing capabilities for tokens. Additionally, it details how to create a custom token programmatically using two essential hooks: hook_token_info() and hook_tokens().

1. Token module in Drupal 8
Mashirul Haque
https://www.drupal.org/u/mashir

2. Agenda
● What is Token?
● What Token module does?
● How to create a custom token Programatically?

3. What is Token?
Token is a small bits of text, which can be
placed into a large documents as a simple
placeholders.

4. What Token module does?
The Token module provides an API to provide
tokens for other modules. It also provide some
additional tokens and provide a browsing facility
for all available tokens in UI.

6. How to create a custom token
Programatically?
Two hooks are required to create a custom token.
● hook_token_info()
● hook_tokens()

7. hook_token_info()
It provides information of available placeholders
and Token types.
Return Value:
It returns an array of all available tokens and token
type.

8. It provides the replacement value of placeholder
tokens.
Parameters:
● $type: Machine name of type of token
● $tokens: Array of tokens
● $data: Array of data objects
● $options: Array of options for token
replacement
hook_tokens()

9. hook_tokens()
Parameters:
● DrupalCoreRenderBubbleableMetadata
$bubbleable_metadata: Bubbleable metadata.
Return value:
It return an associative array of replacement
values.

10. Other Token hooks:
1. hook_token_info_alter()
Parameter:
$data - Array of tokens.
2. hook_tokens_alter()
Parameter:
$replacements - Array of replacements
return by hook_tokens().
$context - Array of all keys of
hook_tokens().

11. DEMO

12. THANKS