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How to alter a message before it is displayed?

I want to alter the message that is output in the message area. A typical message may look like this.

"Article My article has been created."

I’ve tried to put the following in hook_node_insert:

 $messages = Drupal::messenger()->all();  dpm($messages, 'messages');

It outputs an empty array: messages => [].

I guess this is because the messages has not been created yet at this point in time.

Is there another hook I can use? I guess it must be fired after the node has been inserted, and before the page with the new article is displayed.

This similar question for Drupal 7 How do I change/modify an update content message suggests hook_message_alter(). I haven’t found that, or a replacement, for Drupal 9.

This article was republished from its original source.
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How to alter a message before it is displayed?

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