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Facebook Messenger component: add support for sending messages to user IDs (#3489)

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This is the documentation change for https://github.com/home-assistant/home-assistant/pull/9643
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Michel Weimerskirch 2017-10-02 11:30:56 +02:00 committed by Fabian Affolter
parent 6157433445
commit b2a254dffe
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source/_components/notify.facebook.markdown
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@ -50,6 +50,51 @@ automation:
- +919784516314
```
You can also send messages to users that do not have stored their phone number with Facebook, but this requires a bit more work. The Messenger platform uses page specific user IDs instead of a global user ID. You will need to enable a webhook for the "messages" event in Facebook's developer console. Once a user writes a message to a page, that webhook will then receive the user's page specifc ID as part of the webhook's payload. Below is a simple PHP script that reacts to the message "get my id" and sends a reply containing the user's ID:
```php
<?php
$access_token = "";
$verify_token = "";
if (isset($_REQUEST['hub_challenge'])) {
$challenge = $_REQUEST['hub_challenge'];
$hub_verify_token = $_REQUEST['hub_verify_token'];
if ($hub_verify_token === $verify_token) {
echo $challenge;
}
}
$input = json_decode(file_get_contents('php://input'), true);
$sender = $input['entry'][0]['messaging'][0]['sender']['id'];
$message = $input['entry'][0]['messaging'][0]['message']['text'];
if (preg_match('/get my id/', strtolower($message))) {
$url = 'https://graph.facebook.com/v2.10/me/messages?access_token=' . $access_token;
$ch = curl_init($url);
$jsonData = '{
"recipient":{
"id":"' . $sender . '"
},
"message":{
"text":"Your ID: ' . $sender . '"
}
}';
$jsonDataEncoded = $jsonData;
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonDataEncoded);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
if (!empty($input['entry'][0]['messaging'][0]['message'])) {
$result = curl_exec($ch);
}
}
```
### {% linkable_title Rich messages %}
You could also send rich messing (cards, buttons, images, videos, etc). [Info](https://developers.facebook.com/docs/messenger-platform/send-api-reference) to which types or messages and how to build them.