How to create an custom rule action using hook_rules_action_info?

We can create custom rules programmatically using the function hook_rules_action_info(). hook_rules_action_info() is a useful hook provided by rules API to create custom rules programmatically. We can use our custom functions to perform the actions that we require.

Following is a sample of the hook_rules_action_info implementation:

function abc_custom_rules_action_info() {
  return array(
    'abc_custom_action' => array(
      'label' => t('Custom Action'),
      'parameter' => array(
        'param1' => array(
          'type' => 'int',
          'label' => t('Parameter Label'),
        ),
        'param2' => array(
          'type' => 'commerce_order',
          'label' => t('Parameter Label2'),
        ),
        .
        .
        .
      ),
      'configurable' => FALSE,
      'group' => t('ABC Custom module action'),
      'callbacks' => array(
        'execute' => 'abc_custom_action',
      ),
    ),
  );

1. label : Label for the rule action, that appears in the Rules interface.
2. parameter : Parameter that needs to be passed to the custom action function
3. group: A group for this element, used for grouping the actions in the interface.
4. callbacks: Array of custom functions that to be used for this action's functioning.

This function has more parameters, but the above are most required ones to create a custom action. For more information about the parameters used, refer this.

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