CODEWITHSUNDEEP
phpartificial-intelligencebotsmessenger
Kamil Jodełko
Kamil Jodełko

Reputation: 11

Facebook BOT Webhook integration

Trying to set up webhook for Facebook app, I got error:

The URL couldn't be validated. Response does not match challenge, expected value="1786621504", received="\t\t\n1786621504{\"resul..."

screen

Here is the code from index.php. The same code works perfectly on another facebook app.

In request1.txt I checked logs and it looks like this:

1478271548{"hub_mode":"subscribe","hub_challenge":"1786621504","hub_verify_token":"my_password"}

Do you have any idea what is wrong? 

$access_token ="token_here";

$verify_token = "my_password";
$hub_verify_token = "my_password";
fwrite ( $fl, json_encode($_REQUEST));
if (isset ( $_REQUEST ['hub_challenge'] )) {
    $challenge = $_REQUEST ['hub_challenge'];
    $hub_verify_token = $_REQUEST ['hub_verify_token'];
}
$fl = fopen ( "request.txt", "a" );
 fwrite ( $fl, json_encode($_REQUEST));


$fh = fopen ( "/testbot/log.txt", "a" );

if ($hub_verify_token === "my_password") {
    echo $challenge;//exit;
}

Upvotes: 1

Views: 108

Answers (1)

Dani Sh90
Dani Sh90

Reputation: 176

Use this:

if (!empty($_REQUEST['hub_mode']) && $_REQUEST['hub_mode'] == 'subscribe') 
{
    echo $_REQUEST['hub_challenge'];
}

Upvotes: 0

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